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Dynamic Analysis of Planar Multibody Systems Considering Contact Characteristics of Ball Bearing Joint
International Journal of Structural Stability and Dynamics ( IF 3.6 ) Pub Date : 2021-07-29 , DOI: 10.1142/s0219455421501595
Yu Chen 1, 2 , Kailei Liu 1 , Rui Qiu 1 , Chengtao Yu 1 , Xianfei Xia 2, 3 , Yu Sun 2
Affiliation  

A comparative study of dynamic analysis for planar multibody systems with ball bearing joints is conducted in this study. The transmission mechanism is used as the exemplar case for illustrating the effect of ball bearing joints on the dynamic behavior of multibody systems. To reflect the energy loss, the models of continuous contact force and modified Coulomb’s friction are considered in the kinematic equations for the multibody system with ball bearing joint. With this, the dynamic characteristics of the mechanism are studied. Meanwhile, an experimental platform is built to generate the test data for demonstrating the effectiveness and correctness of the proposed method. Moreover, the effects of driving speed and clearance size on the dynamic behavior of the multibody system are investigated. The numerical results indicate that the dynamic behavior of the mechanical system is sensitive to the variation of the design parameters and the selection of parameters can affect greatly the accuracy of the mechanism with clearance joints.

中文翻译:

考虑球轴承接头接触特性的平面多体系统动力学分析

本研究对具有球轴承关节的平面多体系统的动力学分析进行了比较研究。以传动机构为例,说明球轴承关节对多体系统动力学行为的影响。为了反映能量损失,在球轴承关节多体系统的运动学方程中考虑了连续接触力模型和修正库仑摩擦模型。以此来研究机构的动态特性。同时,搭建实验平台生成测试数据,验证所提方法的有效性和正确性。此外,还研究了行驶速度和间隙大小对多体系统动力学行为的影响。
更新日期:2021-07-29
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