客车车身骨架谐响应分析

摘要

建立某款客车的车身骨架有限元模型,并进行谐响应分析,得到车身骨架在发动机激励下车身不同部位的频率响应曲线;分析结果可为解决车身振动问题、改进或者优化车身结构提供参考.%The finite element model for a coach body frame is established, and its harmonic response analysis is carried out. Under the engine excitation, the frequency response curves are obtained of the different parts in the body frame. The analysis results provide some references for solving coach vibration, improving or optimizing the body structure.