Abstract
An autonomous mechanical system with two rotational degrees of freedom, undergoing the action of conservative and nonconservative forces, is considered. The corresponding dynamical system contains changeable parameters that can be treated as amplifying coefficients for control actions. It is required to select the values of these parameters in order to form an autorotation mode in the system that possesses the prescribed properties. We propose an iterative search method for the corresponding values of the parameters. This approach is a modification of the Andronov–Pontryagin method and, unlike the latter, it does not assume that there is a small parameter in the system. We provide an example of the application of the proposed method to a model of a wind turbine: the value of the parameter, ensuring the existence of a mode with a high value of the mechanical power trapped from the flow, is selected. In the dynamical system, an attractor that is a trajectory close to a periodic one corresponds to this mode.
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Funding
This study is supported by the Russian Foundation for Basic Research (grant no. 18-31-20029).
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Translated by A. Muravnik
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Klimina, L.A. Method for Forming Autorotations in Controllable Mechanical System with Two Degrees of Freedom. J. Comput. Syst. Sci. Int. 59, 817–827 (2020). https://doi.org/10.1134/S1064230720060064
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DOI: https://doi.org/10.1134/S1064230720060064