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设计了一种新型结构的旋转式磁流变阻尼器。设计了新的磁流变阻尼器磁路结构,使得转子的两个端面和圆柱面均作为工作面,在不增大转子体积的情况下,有效增加了转子的工作面积。基于磁流变液与磁芯材料特性,对阻尼器进行了磁路设计,获得了阻尼器的相关机械参数与电气参数。针对阻尼器结构特点,应用有限元法,建立了磁流变阻尼器的有限元模型,并对其进行了电磁场分析,得到了阻尼器模型的电磁场物理量。结合有限元分析结果与磁流变液的本构关系,获得了磁流变阻尼器的屈服力矩—电流力学特性。
A new type of rotary magnetorheological damper is designed. A new magnetorheological damper magnetic circuit structure is designed so that the two end faces and the cylindrical surface of the rotor are both working faces, which effectively increases the working area of the rotor without increasing the rotor volume. Based on the properties of MR fluid and magnetic core material, the magnetic circuit design of the damper was carried out, and the relevant mechanical parameters and electrical parameters of the damper were obtained. According to the structural characteristics of the damper, the finite element method is used to establish the finite element model of the MR damper, and the electromagnetic field analysis is carried out. The electromagnetic field physical quantity of the damper model is obtained. Combining the finite element analysis results with the constitutive relation of MR fluid, the yield moment-current mechanical properties of MR damper were obtained.