某车型前控制臂球头销异响分析及改进

FLCA Ball Joint Of Vehicle Noise Issue Study And Improvement

球头销总成是汽车转向系统和悬挂系统的一个重要部件,本文所研究分析的控制臂球头出现球头异响的失效模式。本文首先通过鱼骨图对人、机、料、法、环、测环节进行排查,找到了根本原因是球头镀层脱落导致非正常磨损从而使整车行驶过程中产生噪音。然后对球头销进行设计优化,进行相应的试验验证,最终解决了球头销异响问题。系统地介绍了如何分析问题、制订和验证整改方案,整个过程对球头销的设计开发工作也有一定的指导意义。

Front lower control arm is the important component in the vehicle of steering and suspension,the ball joint in this paper happened noise issue in vehicle level.It is from man,machine,material,method and environment to do the analysis.Finally found the root cause is ball stud surface treatment,the ball joint noise happened due to the worn of the ZnNi coating in the ball stud.First find the issue root cause,then optimized the design and do the design verification,finally solved the noise issue.This paper systematically introduces how to analyze the problem,Define and verify the improvement proposal.This paper also has certain guiding for the design and development of the ball joint.