模态测试技术在汽车零部件振动分析中的应用

Application of modal testing technology in analysing vibration of automobile parts

模态测试技术是汽车结构动态设计与整车舒适性优化的重要方法。文章介绍了如何利用模态测试技术对汽车零部件的振动进行动态分析,通过试验获得了汽车车门的模态参数,并进行有效性验证和数据分析,结果表明该试验方法合理可靠,所获参数有效合理。

Modal test is an important method of the dynamic structure design and comfortability optimization of automobiles. The method is valuable for the analysis of the dynamic eharactefics of automobile parts to conduct automobile vibration and noise research. In this thesis the modal test was adopted to analyse the vibration of automobile parts. Modal parameters of automobile door structure were obtained and analysed. The results indicate that the test method is reliable and rational.