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Critical sectional area of surge tank based on bifurcation and chaos behaviors of hydraulic-mechanical coupling hydropower station

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Abstract

This paper studies the critical sectional area of surge tank (SAST) based on bifurcation and chaos behaviors of hydraulic-mechanical coupling hydropower station (HMCHS). Firstly, the model of HMCHS is established. Then, the criterion for the critical stable state (CSS) based on bifurcation behavior is derived. The critical SAST based on bifurcation behavior is determined and analyzed. Finally, the occurrence of chaos motion is identified. By analyzing the effect of SAST on chaos behavior, the critical SAST based on chaos behavior is determined. The results indicate that the critical SAST based on bifurcation behavior corresponds to CSS of HMCHS. Among nonlinearity of head loss of headrace tunnel, throttling orifice head loss of surge tank and nonlinearity of turbine characteristics, the influence degree of the nonlinearity of head loss of headrace tunnel is the greatest. Under the coupling effect of those three factors, the critical SAST based on bifurcation behavior becomes greater under load decrease and becomes less under load increase. For the chaos motion caused by low- and high-frequency oscillations together, there is the concept of critical SAST based on chaos behavior. With the decrease in proportional gain of governor, the critical SAST based on chaos behavior becomes less.

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Data Availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Project No. 51909097).

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Correspondence to Wencheng Guo.

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Appendices

Appendix A

List for abbreviations

SAST

Sectional area of surge tank

HMCHS

Hydraulic-mechanical coupling hydropower station

CSS

Critical stable state

WLF

Water-level fluctuation

PID

Proportional–integral–differential

DRP

Dynamic response process

LE

Lyapunov exponent

Appendix B

The expressions for the coefficients \(a_{i} \left( {i = 1,2, \ldots ,6} \right)\) in Eq. (11) are presented as follows.

$$ a_{1} = - \left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }} + \frac{{{\partial} \dot{x}}}{{\partial} x} + \frac{{{\partial} \dot{y}}}{{\partial} y} + \frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{h}}}{{\partial} h}} \right), $$
$$ \begin{aligned} a_{2} & = \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{\partial} x} - \frac{{{\partial} \dot{q}_{H} }}{{\partial} z}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{\partial} y} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{y}}}{{\partial} y} - \frac{{{\partial} \dot{z}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} z} \\ & \quad + \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{h}}}{{\partial} h} - \frac{{{\partial} \dot{x}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} x} + \frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{u}}}{{\partial} u} - \frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} y}{ + }\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{u}}}{{\partial} u}\frac{{{\partial} \dot{h}}}{{\partial} h} - \frac{{{\partial} \dot{u}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} u}, \\ \end{aligned} $$
$$ \begin{aligned} a_{3} & = \frac{{{\partial} \dot{q}_{H} }}{{\partial} z}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{\partial} x} + \frac{{{\partial} \dot{q}_{H} }}{{\partial} z}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{\partial} y} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{y}}}{{\partial} y} + \frac{{{\partial} \dot{q}_{H} }}{{\partial} z}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} z} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{q}_{H} }}{{\partial} z}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{h}}}{{\partial} h} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{\partial} h}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{h}}}{{\partial} z} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} x} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} y} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{h}}}{{\partial} h} - \frac{{{\partial} \dot{z}}}{{\partial} x}\frac{{{\partial} \dot{x}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} z} \\ & \quad - \frac{{{\partial} \dot{z}}}{{\partial} y}\frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} z} + \frac{{{\partial} \dot{z}}}{{\partial} h}\frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{h}}}{{\partial} z} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{\partial} u}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} u} + \frac{{{\partial} \dot{z}}}{{\partial} h}\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{h}}}{{\partial} z} - \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} y} - \frac{{{\partial} \dot{x}}}{{\partial} y}\frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} x} \\ & \quad - \frac{{{\partial} \dot{z}}}{{\partial} h}\frac{{{\partial} \dot{u}}}{{\partial} z}\frac{{{\partial} \dot{h}}}{{\partial} u}{ + }\frac{{{\partial} \dot{z}}}{{\partial} h}\frac{{{\partial} \dot{u}}}{{\partial} u}\frac{{{\partial} \dot{h}}}{{\partial} z} - \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{x}}}{{\partial} h}\frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{h}}}{{\partial} x} - \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{u}}}{{\partial} u}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{x}}}{{\partial} x}\frac{{{\partial} \dot{u}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} u} - \frac{{{\partial} \dot{x}}}{{\partial} h}\frac{{{\partial} \dot{u}}}{{\partial} x}\frac{{{\partial} \dot{h}}}{{\partial} u} + \frac{{{\partial} \dot{x}}}{{\partial} h}\frac{{{\partial} \dot{u}}}{{\partial} u}\frac{{{\partial} \dot{h}}}{{\partial} x} \\ & \quad - \frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{u}}}{{\partial} u}\frac{{{\partial} \dot{h}}}{{\partial} h} + \frac{{{\partial} \dot{y}}}{{\partial} y}\frac{{{\partial} \dot{u}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} u} + \frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} y}\frac{{{\partial} \dot{h}}}{{\partial} h} - \frac{{{\partial} \dot{y}}}{{\partial} u}\frac{{{\partial} \dot{u}}}{{\partial} h}\frac{{{\partial} \dot{h}}}{{\partial} y}, \\ \end{aligned} $$
$$\begin{aligned} a_{4} & = \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad {\text{ + }}\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad + \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad + \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}}, \\ \end{aligned}$$
$$ \begin{aligned} a_{5} & = \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}, \\ \end{aligned} $$
$$\begin{aligned} a_{6} & = - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{z}}}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}+\frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{z}}}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}. \\ \end{aligned} $$

Appendix C

The expressions for the coefficients \(X_{j} \left( {j = 0,1, \ldots ,9} \right)\) in Eq. (14) are presented as follows.

$$ X_{0} = - \left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }} + \frac{{{\partial} \dot{x}}}{{\partial} x} + \frac{{{\partial} \dot{y}}}{{\partial} y} + \frac{{{\partial} \dot{u}}}{{\partial} u} + \frac{{{\partial} \dot{h}}}{{\partial} h}} \right), $$
$$ X_{1} = \frac{{Q_{0} }}{{H_{0} }}\frac{{{\partial} {\dot{q}}_{H} }}{{\partial} {z}} - \frac{{Q_{0} }}{{H_{0} }}\left( {e_{qh0} + \frac{{e_{qy0} y_{E} }}{{2\sqrt {h_{E} + 1} }}} \right)\frac{{{\partial} {\dot{h}}}}{{\partial} {z}}, $$
$$ \begin{aligned} X_{2} & = \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} u}} \\ &\quad+ \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} \\ &\quad+ \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\\ &\quad - \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} + \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad - \frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ \end{aligned}, $$
$$ \begin{aligned} X_{3} & = - \frac{{Q_{0} }}{{H_{0} }}\left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \right) \\ & \quad + \frac{{e_{{qh0}} Q_{0} h_{E} - Q_{0} e_{{qx0}} }}{{H_{0} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} \\ & \quad - \frac{{Q_{0} e_{{qy0}} \sqrt {h_{E} + 1} }}{{H_{0} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} \\ & \quad + \left( {\frac{{Q_{0} e_{{qh0}} }}{{H_{0} }} + \frac{{e_{{qy0}} Q_{0} y_{E} }}{{2H_{0} \sqrt {h_{E} + 1} }}} \right) \\ & \quad \left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \right) \\ \end{aligned} $$
$$ \begin{aligned} X_{4} & = - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} \\ & \quad + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} - \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad + \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ \end{aligned} $$
$$ \begin{aligned} X_{5} & = - \frac{{Q_{0} }}{{H_{0} }}\left( {\begin{array}{*{20}c} { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right) \\ & \quad - \frac{{e_{{qh0}} Q_{0} h_{E} - Q_{0} e_{{qx0}} }}{{H_{0} }}\left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \right) \\ & \quad + \frac{{Q_{0} e_{{qy0}} \sqrt {h_{E} + 1} }}{{H_{0} }}\left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \right) \\ & \quad + \left( {\frac{{Q_{0} e_{{qh0}} }}{{H_{0} }} + \frac{{e_{{qy0}} Q_{0} y_{E} }}{{2H_{0} \sqrt {h_{E} + 1} }}} \right)\left( {\begin{array}{*{20}c} { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { + \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right), \\ \end{aligned} $$
$$ \begin{aligned} X_{6} & = - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} \\ & \quad - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad + \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ & \quad - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} \\ \end{aligned}, $$
$$ \begin{aligned} X_{7} & = - \frac{{Q_{0} }}{{H_{0} }}\left( {\begin{array}{*{20}c} {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}}} \\ { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right) \\ & \quad - \frac{{e_{{qh0}} Q_{0} h_{E} - Q_{0} e_{{qx0}} }}{{H_{0} }}\left( {\begin{array}{*{20}c} {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}}} \\ { - \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right) \\ & \quad {\text{ + }}\frac{{Q_{0} e_{{qy0}} \sqrt {h_{E} + 1} }}{{H_{0} }}\left( {\begin{array}{*{20}c} { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { + \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right) \\ & \quad {\text{ + }}\left( {\frac{{Q_{0} e_{{qh0}} }}{{H_{0} }} + \frac{{e_{{qy0}} Q_{0} y_{E} }}{{2H_{0} \sqrt {h_{E} + 1} }}} \right)\left( {\begin{array}{*{20}c} {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}}} \\ { + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}}} \\ { + \frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right), \\ \end{aligned} $$
$$ \begin{aligned} X_{8} & = - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} \\ & \quad + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} \\ & \quad - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}}, \\ \end{aligned} $$
$$ \begin{aligned} X_{9} & = - \frac{{Q_{0} }}{{H_{0} }}\left( {\begin{array}{*{20}c} { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} h}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} z}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} x}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}{\text{ + }}\frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} x}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} y}}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} h}}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right) \\ & \quad - \frac{{e_{{qh0}} Q_{0} h_{E} - Q_{0} e_{{qx0}} }}{{H_{0} }}\left( {\begin{array}{*{20}c} { - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right) \\ & \quad {\text{ + }}\frac{{Q_{0} e_{{qy0}} \sqrt {h_{E} + 1} }}{{H_{0} }}\left( {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} h}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} h}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} h}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \right) \\ & \quad {\text{ + }}\left( {\frac{{Q_{0} e_{{qh0}} }}{{H_{0} }} + \frac{{e_{{qy0}} Q_{0} y_{E} }}{{2H_{0} \sqrt {h_{E} + 1} }}} \right)\left( {\begin{array}{*{20}c} {\frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} u}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} y}}\frac{{{\partial} \dot{u}}}{{{\partial} u}}\frac{{{\partial} \dot{h}}}{{{\partial} z}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} y}} + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} x}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} y}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ { + \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} z}}\frac{{{\partial} \dot{h}}}{{{\partial} x}} - \frac{{{\partial} \dot{q}_{H} }}{{{\partial} q_{H} }}\frac{{{\partial} \dot{x}}}{{{\partial} y}}\frac{{{\partial} \dot{y}}}{{{\partial} u}}\frac{{{\partial} \dot{u}}}{{{\partial} x}}\frac{{{\partial} \dot{h}}}{{{\partial} z}}} \\ \end{array} } \right). \\ \end{aligned} $$

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Guo, W., Xu, X. Critical sectional area of surge tank based on bifurcation and chaos behaviors of hydraulic-mechanical coupling hydropower station. Nonlinear Dyn 110, 1297–1322 (2022). https://doi.org/10.1007/s11071-022-07672-4

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