摘要
许多工程振动结构,当它们系统的质量和大阻尼使该多自由度系统的多个固有频率十分接近时,使用常用的办法是很难将其识别的.本试验将模态分析法应用到大型拖车悬挂系统中,通过一系列的模态试验数据对该系统进行了识别.该试验方法和分析得出的结论为工程结构振动问题提供了解决问题的可靠依据.
It is difficult to distinguish a vibration system by applying the common method when the system has multi-degree of freedom and many national frequencies are closed because of the mass and heavy damping. But the system can be identified by a series of testing data when the model test analysis is used. The testing method and conclusion from the test offer some reliable accordance for engineering vibration system.
出处
《北京建筑工程学院学报》
2007年第1期15-18,共4页
Journal of Beijing Institute of Civil Engineering and Architecture
关键词
阻尼
模态分析
固有频率
识别
damping
model test
national frequency
identification
作者简介
俞启灏（1948-），男，教授，硕士，研究方向：机电工程及图书情报．
