文档介绍:汽车NVH性能测试技术流程研究﹡
杨明亮 丁渭平
(西南交通大学机械工程学院汽车工程研究所 成都 610031)
The research about the testing technical process of a vehicle NVH performance ﻫYang Ming-liang Ding Wei-ping
(The Research Institute of Automobile Engineering, College of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China)
【摘要】汽车NVH性能是评价整车性能重要指标之一。其中,NVH性能测试技术自然成为汽车工程界关注的焦点。首先运用整车NVH性能摸底测试方法验证了某国产轿车NVH主观感受;其次,介绍了传递路径分析基本原理,并构建了基本分析模型,结合传递路径分析方法与国际先进的声振数据测试系统,对可能产生问题的路径进行了声振测试、分析,并通过排除法得出了该工程问题的初步诊断结论;最后,在分析、总结工程实例基础之上,建立起了整车NVH性能测试与分析一般技术流程,为今后工程上解决相关整车NVH问题提供了参考和依据,提出了整车NVH性能测试技术流程研究的意义。
主题词:NVH;传递路径分析;技术流程
中图分类号:+1 文献标识码:A
【Abstract】The NVH performance about a vehicle is one of the most important guidelines .Thereinto, the testing technology of NVH performance has been a focus in automobile engineering kingdom naturally. The writer in This paper verified a car’s NVH subjective feelings firstly through using the method that called trial testing. Secondly, introducing the keystone of transfer path analysis ,constructing the basic analysis model, and combining with the transfer path analysis methods and the international advanced data test system, the writer makes NVH testing and analysis on each path where a NVH problem could be produced, and then, get a preliminary diagnosis by using exclusion method. Finally, on the base of analyzing and summarizing the engineering problems,