【摘要】 本文论述了用先进的模态试验法对HH1012半承载式车身的车架进行试验时应注意的问题:如仪器的选用、标定、安装及数据处理等各方面,并根据试验数据,用计算机优化识别法识别出各阶模态参数,最后对试验所得的半承载式车架的动特性从理论上进行了分析。更多还原

【Abstract】 In this paper,by means of the advanced modal vibration theauthor carried out experiments on the frame OF HH1012 semiintegral vehicalebody Some practical problems in the experiments such as the selection, installati-on of apparatus, tbe data processing, etc. were expounded. Based on the obtaineddata, the modal parameters were identified in computer optimal identification me-thod. Finally, the processed dynamical parameters of this frame were analyzedin theory.更多还原