摘要
针对磁流变阻尼器提出了一个简单的修正Bingham模型。基于修正Bingham模型建立了汽车座椅减振系统的非线性模型,通过平均法得到了半主动减振系统发生主共振时的理论解,并进行了数值验证。结果表明,采用平均法得到的理论解和数值解有很好的一致性。数值仿真表明在主共振区,磁流变阻尼器的阻尼和控制力对半主动减振系统的幅频响应影响都很明显,半主动减振系统的幅频响应随阻尼和控制力的增加都显著减小。在非共振区,磁流变阻尼器的阻尼、控制力和零力速度对座椅系统的响应影响都很小。
The paper proposes a correction Bingham model tbr describing MR damper with experimental data. The primary resonance reduction in the semi-active vibration isolation system tbr vehicle seats was investigated. An analytical solution for the primary resonance was obtained, which was verified by numerical solution with Simulink. The etthct of model parameters on the system＇s primary resonance was studied. The research results show that the damping of MRD and the control tbrce have a significant effect on amplitude- ti＇equency response in the resonance region. The amplitude-frequency response of the semi-active vibration isolation system decreases with the increase of the damping of MIlD and control force. However, in the non- resonant region, the damping, control force and speed have a small impact on amplitude-frequency response.
出处
《汽车工程学报》
2015年第6期421-426,共6页
Chinese Journal of Automotive Engineering
基金
国家自然科学基金(11302088)
江苏省自然科学基金青年基金(BK2012278)
关键词
车辆座椅
半主动
非线性
振动
vehicle seat
semi-active
nonlinear
vibration
