Vibration Characteristics Analysis of Planetary Gears with a Multi-Clearance Coupling in Space Mechanism

作     者：Zhang, Huibo Qi, Chaoqun Fan, Jizhuang Dai, Shijie You, Bindi 

作者机构：Hebei Univ Technol Sch Mech Engn Tianjin 300130 Peoples R China Hebei Key Lab Robot Percept & Human Robot Interac Tianjin 300130 Peoples R China Harbin Inst Technol State Key Lab Robot & Syst Harbin 150080 Heilongjiang Peoples R China Harbin Inst Technol Weihai Sch Naval Architecture & Ocean Engn Weihai 264209 Peoples R China 

出 版 物：《ENERGIES》 (能源)

年 卷 期：2018年第11卷第10期

页      面：2687-2687页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：State Key Laboratory of Robotics and System (HIT) [SKLRS-2017-KF-15] Science and Technology on Space Intelligent Control Laboratory [ZDSYS-2017-08] National Natural Science Foundation of China (NSFC) [51575126, 51605133, 51705127] Graduate Innovative Ability Training Project of Hebei Province [CXZZSS2018025] 

主　　题：space mechanism multi-clearance nonlinear dynamic model planetary gears vibration characteristics 

摘      要：Multi-clearance is the main cause for the performance and reliability decline of complicated mechanical systems. The increased clearance could induce contacts and impacts in joints, and consequently affect control accuracy. A nonlinear dynamic model of planetary gears with multi-clearance coupling is proposed in the current study to investigate the mechanism of influence of clearance on the dynamic performance. In addition, the coupling relationship between radial clearance and backlash is integrated into the multi-body system dynamics. The vibration characteristics of planetary gears with the changes of rotational velocity, clearance size and inertia load are explored. The numerical simulation results show that there are complex coupling relations in planetary gear systems, due to the multi-clearance coupling. The phenomenon of system resonance may occur with the changes of rotational velocities and clearances sizes. Multi-clearance coupling can significantly increase the resonant response of planetary gear systems in empty-load or light-load states.