某特种车辆车架的随机振动分析

以某特种车辆车架为研究对象,分析了车架在外界随机振动下的动态响应.给出了模态分析和随机振动分析理论及方法,建立了车架有限元分析模型,进行了模态和随机振动分析,获得了车架的固有频率,振型及其特定工况下振动最大处的位移频率响应谱曲线,并为结构的后续改进优化设计和新产品的开发提供了理论依据.

Random Vibration Analysis of the Frame of Especial Vehicle

To the frame of special vehicle for the study,the dynamic response of frame were analyzed which were in the outside world random vibration.The modal analysis and random vibration theory and method were put forward.The finite element analysis model was established.The modal and random vibration of frame were analyzed.The natural frequency,vibration mode and specific operating conditions the maximum displacement frequency response spectrum curve were obtained.The results offer reference for further studying t...