Abstract
In order to investigate the influence of the bolt constraint parameters on the dynamic characteristic of the planetary gear transmission(PGT) system with fuselage excitation, a dynamic model of the PGT system with flexible ring gear is established with the consideration of time-varying meshing stiffness with meshing phase, manufacturing error, installation error, fuselage excitation and bolt constraint. The Newmark-beta method is used to solve the dynamic model, then the dynamic load coefficient and load sharing coefficient is obtained. The results indicate that the parameters of the bolt have effects on the dynamic performance of the PGT system. Reducing the bolt number can can help to improve the dynamic load performance and load sharing performance of the system when bolt stiffness is small. Moreover, reducing bolt stiffness can also improve the dynamic load performance and load sharing performance of the system effectively.
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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 is supported by the National Natural Science Foundation of China (Grant No. 52275061).
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Appendix
Appendix
1.1 Strain energy
1.2 Kinetic energy
1.3 Dissipation energy
1.4 Total mass matrix
1.5 Ring gear mass matrix
1.6 PGT system mass matrix
1.7 Total stiffness matrix
1.8 Ring gear stiffness matrix
1.9 PGT system stiffness matrix
1.10 External meshing stiffness matrix
1.11 Internal meshing stiffness matrix
1.12 Bolt stiffness matrix
1.13 Sun gear support stiffness matrix
1.14 Carrier support stiffness matrix
1.15 Planet gear support stiffness matrix
1.16 Gyroscopic stiffness matrix
1.17 Total damping matrix
Ring Gear Damping Matrix\(C_{r} = \delta_{r} \cdot K_{r}\).
1.18 PGT system damping matrix
1.19 External meshing damping matrix
1.20 Internal meshing damping matrix
1.21 Bolt damping matrix
1.22 Sun gear support damping matrix
1.23 Carrier support damping matrix
1.24 Planet gear support damping matrix
1.25 Gyroscopic damping matrix
1.26 General force
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Che, X., Zhu, R. Dynamic behavior analysis of planetary gear transmission system with bolt constraint of the flexible ring gear. Meccanica 58, 1173–1204 (2023). https://doi.org/10.1007/s11012-023-01668-z
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DOI: https://doi.org/10.1007/s11012-023-01668-z