The dynamic parameters in the equations are determined by the modal vibration test. 通過(guò)模態(tài)振動(dòng)實(shí)驗(yàn)識(shí)別其中有關(guān)的動(dòng)力參數(shù)。
The finite element model of the tower is further dynamically updated according to ambient vibration test through modal sensitivity based model updating method. 在此基礎(chǔ)上，采用基于靈敏度分析的模型參數(shù)修正方法，結(jié)合索塔動(dòng)力特性的測(cè)試結(jié)果對(duì)索塔的初始有限元模型進(jìn)行了動(dòng)力修正。
Based on the experimental modal analysis and the vibration test analysis of motorcycle frame and engine, the author obtains the resonance frequency of the frame. 以實(shí)驗(yàn)?zāi)B(tài)分析為手段，通過(guò)對(duì)摩托車(chē)車(chē)架及發(fā)動(dòng)機(jī)等部件的振動(dòng)實(shí)驗(yàn)分析，找出了引起車(chē)架共振的頻率；