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Dynamic Performance of Planetary Gear Joint for Satellite Antenna Driving Mechanism Considering Multi-Clearance Coupling

Author

Listed:
  • Jianchao Han

    (Department of Astronautics Engineering, Harbin Institute of Technology, Harbin 150001, China
    Beijing Satellite Manufacturing Factory, Beijing 100094, China)

  • Lei Liang

    (Department of Astronautics Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Yang Zhao

    (Department of Astronautics Engineering, Harbin Institute of Technology, Harbin 150001, China)

Abstract

Dynamic pointing and tracking accuracy are the most relevant indicators of dynamic performance for the satellite antenna driving mechanism. Multi-clearance coupling in the joints will incur high-frequency vibration and dynamic errors of the system. Joints of existing analytical models are generally oversimplified as planar revolute hinges, which ignore the coupling effect of multi-clearance. It cannot proficiently predict the dynamic behavior of the driving mechanism with multi-clearance on the orbit. To address this problem, a typical 2K-H planetary gear joint model with multi-clearance coupling has been developed by considering radial clearance, backlash, tooth profile error, time-varying meshing stiffness, and damping. A dynamic model of a typical dual-axis driving mechanism is established to analyze the dynamic characteristics of multibody systems with planetary gear joints. The effects of rotational speed, radial clearance, backlash, and their coupling on the dynamic performance of the dual-axis driving mechanism under different driving modes are explored by numerical simulations. The results show that the coupling of radial clearance and backlash in joints have a significant influence on the dynamic performance of the system. Appropriate clearance design avails the dynamic pointing accuracy and tracking accuracy of the dual-axis driving mechanism.

Suggested Citation

  • Jianchao Han & Lei Liang & Yang Zhao, 2021. "Dynamic Performance of Planetary Gear Joint for Satellite Antenna Driving Mechanism Considering Multi-Clearance Coupling," Energies, MDPI, vol. 14(4), pages 1-25, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:815-:d:492993
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    References listed on IDEAS

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    1. Huibo Zhang & Chaoqun Qi & Jizhuang Fan & Shijie Dai & Bindi You, 2018. "Vibration Characteristics Analysis of Planetary Gears with a Multi-Clearance Coupling in Space Mechanism," Energies, MDPI, vol. 11(10), pages 1-17, October.
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