中文摘要：

为有效抑制外圆车削加工中的颤振，研制了基于挤压模式的外圆车刀磁流变减振装置。在结构设计的基础上，根据减振装置的工作特性及电磁学理论，对直接影响磁流变材料特性进而影响减振效果的磁路进行了理论计算；利用有限元软件Ansoft Maxwell列不同材料、结构参数下减振装置内的磁感应强度进行了三维磁场仿真分析，总结了各主要参数对磁感应强度的影响规律，确定了外圆车刀磁流变减振装置的各主要设计参数，并获得了较理想的磁感应强度。研究为磁流变减振装置的参数优化设计奠定了基础。

英文摘要：

The MRF damping device based on squeezed-model was developed and applied on the lathe tool to effectively suppress chatter during turning. On the basis of the structure, magnetic circuit that impacts directly on properties of MRF and damping effect was calculated according to the damping device＇ s characteristics and electromagnetic theory. The magnetic strength in damping device was simulated with Ansoft Maxwell under different materials and structural parameters, the influences of the main parameters on the magnetic strength were summed up, and the main parameters of the device were decided, which lead to an ideal magnetic induction of the MRF damping device. The above researches should be served as the references of the optimization design of MRF damping device.