后视镜折叠异响问题的理论分析与解决

Theoretical Analysis and Solution of Abnormal Sound Caused By Rearview Mirror Folding

后视镜折叠异响是一类常见的感官质量问题,会造成客户的强烈抱怨。由于异响的故障现象难以持续复现,问题的分析解决比较困难。通过对故障现象的观察并结合工程理论,提出该异响问题是由于摩擦振动导致的推论。基于"摩擦振动"理论制定并验证多种改进措施,最终找到将4种措施叠加的最优解决方案。方案的有效性反过来证明了"摩擦振动"理论对该类后视镜折叠异响问题的适用性,为后续类似问题的分析解决提供了理论参考。

The abnormal sound of rearview mirror folding is a common sensory quality problem,which will cause customers’%strong complaints.It is difficult to analyze and solve the problem because the abnormal noise is hard to be repeated.By observing the fault phenomenon and combining with engineering theory,it is proposed that the abnormal noise problem is caused by frictional vibration.Based on the frictional vibration theory,a variety of improvement measures are formulated and verified,and finally the optimal solution is found by superposing the four measures.The validity of the scheme in turn proves the applicability of the theory of frictional vibration to the problem of abnormal sound caused by folding of this kind of rearview mirror,which provides a theoretical reference for the analysis and solution of similar problems in the future.