摘要
减振器是汽车悬挂系统的重要结构件,主要作为承受车辆本身的重量和颠簸时的缓冲器,振动破坏是减振器的主要损坏形式。对减振器进行静力学分析、模态分析和谐响应分析,找出振幅较大的区域,以避免发生共振,在模态分析的结果上,进行谐响应分析,得到减振器的应力–频率响应曲线和相位图,确定了发生共振频率及区域。分析结果表明,减振器的轴心与轴端区域易发生振动破坏,为减振器的设计和优化提供了参考。
Shock absorbers,critical components of a car’s suspension system,primarily bear the vehicle’s weight and dampen shock during bumps.Vibration damage is the predominant mode of shock absorber failure.Through static,modal,and harmonic response analysis of shock absorbers,this study iden-tified high amplitude regions to evade resonance.Based on modal analysis outcomes,harmonic re-sponse analysis was carried out,yielding the stress-frequency response curve and phase diagram of the shock absorber.Resonance frequencies and zones were pinpointed.Analysis revealed that the x-axis and shaft end regions of the shock absorber are prone to vibration failure,providing ref-erences for the design and optimization of shock absorbers.
作者
郭教聪
Jiaocong Guo(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai)
出处
《建模与仿真》
2024年第6期6325-6335,共11页
Modeling and Simulation
