磁流变减振器磁场特性分析  

Magnetic Field Analysis of Magnetorheological Damper

作　　者：马胜楠 梁冠群 周福强 危银涛[2] MA Sheng-nan;LIANG Guan-qun;ZHOU Fu-qiang;WEI Yin-tao(Key Laboratory of Modern Measurement and Control Technology Ministry of Education,Beijing Information Science and Technology University,Beijing 100192,China;State Key Laboratory of Automobile Safety and Energy Saving,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京信息科技大学现代测控技术教育部重点实验室,北京100192 [2]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《机械设计与制造》2024年第8期260-266,共7页Machinery Design & Manufacture

基　　金：国家自然科学基金项目(51761135124,11672148);汽车安全与节能国家重点实验室基金;清华大学Z05专项基金。

摘　　要：磁流变减振器由于能耗低、体积小、响应迅速且阻尼力连续可调得到越来越广泛的应用。由于现有的磁流变减振器仿真中通常以静态磁场模拟阻尼器的实际磁场,造成仿真与实际减振器工作状态的偏差,因此针对某型磁流变减振器的磁路结构,对瞬态电磁场进行分析;通过对磁流变减振器磁场的模拟,得到减振器内部磁场随活塞及线圈的运动的动态变化,并分析了磁感应强度在不同的条件下的动态分布以及磁场稳定时间,为磁流变减振器结构优化设计提供指导。Magnetorheological damper(MRD)is widely used because of its low energy consumption,small volume,rapid response and continuously adjustable damping force.In the existing simulation of MR damper,the static magnetic field is usually used to simulate the actual magnetic field of the damper,which causes the deviation between the simulation and the actual working state of the damper.Therefore,the transient electromagnetic field of the damper is analyzed according to the magnetic circuit structure of the MR damper.Through the simulation of the magnetic field of the MR damper,the dynamic change of the magnetic field in the damper with the movement of piston and coil is obtained,and the dynamic distribution of magnetic induction intensity under different conditions and the stable time of magnetic field are analyzed,which provides guidance for the structural optimization design of MR damper.

关 键 词：磁流变减振器 磁场 性能分析 有限元分析 动态分布 稳定时间 

分 类 号：TH16[机械工程—机械制造及自动化] TH703