关键词: 全地形车车架；模态分析；谐响应分析；动态性能；减振

Abstract:

The finite element model of ATV frame was created and modal analysis was performed to get the inherent frequency,with combining the function of the engine,the effects of engine vibration on the frame dynamic performance were analyzed,and through harmonic response analysis,the vibration resulant of every part of the frame was obtained.The method of avoiding resonance between engine and frame was put forward,the parameters of rubber damper were calculated and the fore and aft vibration reduction’s maximum of frame’s displacement response were compared.The road testing proves the rationality of the vibration reduction method.

Key words: ATV(all terrain vehicle) frame;modal analysis;harmonic response analysis;dynamic performance;vibration reduction