磁流变阻尼器及其研究进展

磁流变阻尼器是应用磁流变体在强磁场下的快速可逆流变特性而制造的一种新型半主动控制装置。本文介绍了磁流变液的组成以及材料特点,即连续性、可逆性、频率响应时间短;从设计磁流变阻尼器的角度,阐述了磁流变阻尼器的构造特点、力学模型以及半主动控制方法;最后介绍了磁流变阻尼器的工程应用,总结了目前其存在的问题及今后发展的方向。

Magnetorheological Fluid Damper and Its Research Progress

Magnetorheological fluid damper(MRFD) is a new kind of semi-active control device, with the characteristics of magnetorhelogical fluid, which could change rapidly in strong magnetic field, and the change is reversible. This paper introduces the fluid's ingredients and characteristics, which are continuous, reversible and the short time of frequency response. Then from the way of designing the damper, the formation, the dynamics model and the semi-active control strategies are described. In the last part of this paper, the authors illuminate how to use the damper to reduce the vibration of structure, and summarize some limitations and development of MRFD.