第四届中国电子信息博览会举办

Transient analysis of MR damper for turning

第四届中国电子信息博览会日前在深圳举办。博览会开幕式由深圳市人民政府市长许勤主持，工业和信息化部副部长怀进鹏，广东省委副书记、深圳市市委书记马兴瑞出席开幕式并致辞。怀进鹏宣布第四届中国电子信息博览会开幕。

This paperbased on the MR damping device that was applied on the lathe tool based on squeezed-model, according to the damping device＇ s characteristics and electromagnetic theory, describes the change of the magnetic when it applies variable current in the process of the practical work, and magnetic circuit analysis of the entire device. The transient magnetic analysis for gap was done with Ansofl Maxwell, summing up that the different magnetic intensity B were produced in different moment; and at the same time, due to the different structures, the different magnetic strengths were produced at the different positions in extrusion surface. In a period of current change cycles, studying the c dynamic magnetic in different locations, finally, it determined the maximum magnetic distribution area in extrusion surface. hange of intensity