摘要
介绍了ＯＤＳ方法的基本原理，该方法可用来识别结构运行状态下的动态特性。应用该方法对一辆发动机怠速运转状态下的微型车车身动态特性进行分析，识别出车身在发动机怠速运转状态下的振动型态，判明车内噪声产生的原因。
Fundamental principle of ODS method is presented,which may be used to distinguish dynamic characteristics of a structure under operating state.A minicar has been used for analysis of dynamic characteristics of its body under engine idling operation with this method,which distinguishes the vibration mode of car body under engine idling operation.Then causes of noise occurred in the car are ascertained to provide a reliable basis for modification of the structure.
出处
《汽车技术》
北大核心
1996年第10期6-8,共3页
Automobile Technology
