23 January 2017 Analysis of friction effects on satellite antenna driving mechanism with clearance joints
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Proceedings Volume 10322, Seventh International Conference on Electronics and Information Engineering; 103221Z (2017) https://doi.org/10.1117/12.2265451
Event: Seventh International Conference on Electronics and Information Engineering, 2016, Nanjing, China
Abstract
The existence of clearance in joints of mechanism is inevitable. In this paper, the friction effects in clearance joints on dynamic responses of driving mechanism of satellite antenna are studied. Considering clearances in joints, the contact force model in clearance joints is established using a nonlinear continuous contact force model and the friction effect is considered by using a modified Coulomb friction model. Then the dual-axis driving mechanism of satellite antenna with clearance joints is used as the application example. The numerical simulation of dual-axis driving mechanism with clearance joints is presented. The friction effects of clearance joint on dynamic responses of the dual-axis driving mechanism are discussed and analyzed quantitatively for four cases with different friction coefficients. The investigation results show that the increase of friction coefficient will decrease the vibration amplitude of the driving mechanism system.
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Z. F. Bai, J. Chen, S. Bian, X. Shi, "Analysis of friction effects on satellite antenna driving mechanism with clearance joints", Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103221Z (23 January 2017); doi: 10.1117/12.2265451; https://doi.org/10.1117/12.2265451
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