某牵引车共振问题测试及研究

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (4) : 102-105.

论文

某牵引车共振问题测试及研究

卜绍先，谭松涛，闵鹏，高中美，焦安勇

作者信息 +

Experimental study of a certain tractor’s resonance problem

BU Shao-xian, TAN Song-tao, MIN Peng, GAO Zhong-mei, JIAO An-yong

Author information +

文章历史 +

摘要

本文阐述了工作模态测试理论和方法，并针对某牵引车出现的典型共振问题，运用LMS Test模态测试系统测试该车匀速时的工作模态数据，然后成功地分析出该车共振时的模态振型、模态频率及激励源位置—前轮。测量车轮径向跳动量值，发现两个前轮都超过国标限值150%以上，提出改正措施—更换符合要求的前轮，再重复一轮工作模态测试，共振现象消失。因此，该研究成功地运用工作模态测试理论及方法解决了一例整车共振问题，具有一定工程应用价值。

Abstract

This paper presents the theory and technique of operational modal analysis in classical resonance for a certain tractor. Firstly, operational data set of even velocity was tested by LMS Test modal test system. Then the modal shape and modal frequency during resonance was analyzed. Measured the radial fluctuant value of all wheels, it was discovered that the value of front wheels was 150% more than the restricted value in GB (National Standard of the People’s Republic of China). To prevent the resonance, the two front wheels were replaced with new ones for fulfilling the requirement of GB. Repeat the experiment of operational modal analysis, the resonance disappeared after the replacement of front wheels. It demonstrates that the theory and technique of operational modal analysis resolving the resonance problem of the tractor in this study is valuable in engineering application.

导出引用

卜绍先;谭松涛;闵鹏;高中美;焦安勇. 某牵引车共振问题测试及研究[J]. 振动与冲击, 2013, 32(4): 102-105

BU Shao-xian;TAN Song-tao;MIN Peng;GAO Zhong-mei;JIAO An-yong. Experimental study of a certain tractor’s resonance problem[J]. Journal of Vibration and Shock, 2013, 32(4): 102-105