基于汽车振动的模态试验方法探究与应用  

Research and Application of Modal Test Method Based on Vibration of Vehicle

作　　者：高伟[1] 柴光远[1] 

机构地区：[1]西安科技大学机械工程学院,西安710054

出　　处：《组合机床与自动化加工技术》2012年第8期36-38,共3页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：文章介绍了进行基于汽车振动的模态试验时应遵循的模态试验理论、模态试验方法及确保测试精度的相关措施,并对某重型卡车驾驶室的模态试验过程进行了简要陈述,通过该试验所得MAC图可知试验获取的模态参数非常可信,并且通过分析、研究模态振型图发现了该重卡驾驶室结构的薄弱环节,从而为该结构的改进及优化提供了重要的参考依据。Article introduces theories of modal testing, methods of modal testing and correlative meas- ures for guaranteeing test precision which should be followed in doing modal test based on vibration of vehicle, and states concisely the modal test of one heavy truck cab. By observing MAC map of the test, we think that modal parameters which the test obtains are very believable, and by analyzing and researching of modal types, we discover weak connection of the heavy truck cab, which provides refer- enced basis for improving and optimizing of the heavy truck cab.

关 键 词：模态试验理论 模态试验方法 重卡驾驶室 模态参数 MAC图 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]