Vibration response analysis of boneless wiper-windshield system based on multi-body dynamics model

Yansong Wang, Zhichao Huang, Hui Guo, Xiaolong Xie, Pei Sun, Chaoran Yang
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Abstract

The vibration and noise generated by the boneless wiper-windshield system during its actual operation bother the occupants. Exploring the dynamic characteristics of the boneless wiper-windshield system is a prerequisite for understanding vibration and noise. In this paper, the dynamic characteristics of the boneless wiper-windshield system are investigated, and a rigid-flexible coupled multi-body dynamic model matching the real boneless wiper-windshield system is constructed. The friction characteristic of the dynamic model is studied through the wiper test bench experiment. The nonlinear dynamic response of the dynamic model is calculated with the Adams and results of the frictional vibration are well reproduced in real motions. The parallel analysis of the simulation calculation results and the real vehicle test results confirms the validity of the model. The results show that the vibration generation mechanism at the moments before and after the reversal can be explained by the instability of the wiper blades due to the negative friction characteristic. There are differences in the magnitude of the reversal impact force and the moment of reversal at each position of the wiper blade. The effect of the speed-gears on the system vibration is analyzed through the simulation results. The analysis method and simulation results in this article can provide reference for the research on vibration and noise control of boneless wiper systems.
基于多体动力学模型的无骨雨刷挡风玻璃系统振动响应分析
无骨雨刷-挡风玻璃系统在实际运行过程中产生的振动和噪音会对乘员造成困扰。探索无骨雨刷挡风玻璃系统的动态特性是了解振动和噪声的前提。本文研究了无骨雨刮-风挡系统的动态特性,并构建了与实际无骨雨刮-风挡系统相匹配的刚柔耦合多体动态模型。通过雨刷测试台实验研究了动态模型的摩擦特性。利用 Adams 计算了动态模型的非线性动态响应,摩擦振动的结果很好地再现了实际运动。模拟计算结果和实际车辆测试结果的平行分析证实了模型的有效性。结果表明,反转前后瞬间的振动产生机制可以用雨刷片的负摩擦特性导致的不稳定性来解释。雨刷片各个位置的反转冲击力和反转力矩的大小存在差异。通过仿真结果分析了变速杆对系统振动的影响。本文的分析方法和仿真结果可为无骨雨刷系统的振动和噪声控制研究提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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