摘要
建立了简化的整车系统振动模型,研究汽车车身垂直振动非线性响应行为。利用SolidWorks与SimMechanics联合仿真方法,分析悬架系统的几何非线性和非线性磁流变阻尼力对其振动行为的影响,讨论其垂直振动位移响应的二次及以上谐波成分随系统参数变化的规律。结果表明:系统响应出现二次及以上的谐波成分,甚至在特定的外激励频率和幅值下,会产生二次和三次超谐波共振,表现出明显的非线性振动行为,导致车辆乘坐舒适性不佳。该工作对带有磁流变阻尼器的悬架系统优化设计,具有一定的理论参考意义。
The simplified vibration model of the vehicle was developed to study the nonlinear response behavior of vertical vibration of automobile body. The influence of geometric nonliearity and nonliear magnetorheological damping force of the suspension system on the vehicle vertical vibration behavior are analyzed with the combined simulation method of SolidWorks and SimMechanics, and the variation of the second and higher superharmonic components with system parameters in vertical displacement response of automobile body are discussed. The simulation results show that the second and higher superharmonic components appear in the system responses, the second and the third superharmonic resonance will be generated under the specific excitation frequencies and amplitudes. These show obvious nonlinear vibration behaviors that will lead to poor ride comfort. The work will be helpful to the optimization design of suspension system with magnetorheological damper.
作者
韩刚
刘瑞
吕鹤
HAN Gang;LIU Rui;LYU He(School of Mechanical&Electrical Engineering,Qiqihar University,Qiqihar 161006,Heilongjiang,China)
出处
《机械科学与技术》
CSCD
北大核心
2022年第5期703-710,共8页
Mechanical Science and Technology for Aerospace Engineering
基金
黑龙江省教育厅基本业务专项(135109218)。
关键词
磁流变阻尼器
悬架系统
非线性振动
联合仿真方法
magnetorheological damper
suspension system
nonlinear vibration
combined simulation method
