【摘要】 采用磁流变减振器的履带车辆半主动悬挂系统,由于磁流变液体阻尼器结构简单、体积小、能耗低、反应迅速且阻尼力可调,正在成为新型履带车辆悬挂系统的发展方向。本文基于磁流变可控流体本构关系的Bingham模型,对影响车用磁流变减振器的阻尼力的各种因素进行了综合分析。对自行研制的双出杆剪切阀式磁流变减振器进行了实验研究,用实验与数值计算相结合的方法建立了粘滞阻尼力与液体动力粘度的关系、粘滞阻尼力与活塞间隙的关系、总阻尼力与活塞间隙的关系以及活塞间隙与可调系数K的关系。讨论了活塞间隙对磁流变减振器工作性能的影响规律,得到了活塞间隙的取值范围及依据。文中的数值计算是建立在已成型的试验器材基础上的,所以得到的关系曲线具有一定的实际意义和参考价值。更多还原

【Abstract】 Magnetorhological dampers will be an ideal component of semiactive vibration control in track armored vehicle suspension system for reasons of simple structure, small volume, energy saving, rapid response and smooth damping. In this paper, based on Bingham model, the damping force of a MRF damper is analyzed. And all the factors that affect the damping force of an MRF damper are discussed. By way of studying the experimental data of selfmade MRF damper, the four important relationships are obtained. Then the piston clearance is mainly discussed due to its affecting the performance of a damper. Finally, the piston clearance value is established. Based on experiment and calculating data, the relationship curves are used for some practical cases.更多还原