磁控形状记忆合金驱动器的设计及特性分析  

Design and analysis of characteristics of Magnetic Shape Memory Alloy actuator

作　　者：曾宇露[1] 黄森林 万家鑫 曹清华[1] 赵冉 ZENG Yulu;HUANG Senlin;WAN Jiaxin;CAO Qinghua;Zhao Ran(Jiangxi Province Key Laboratory of Precision Drive & Control,Nanchang Institute of Technology,Nanchang 330099,China;Zhongyuan-Petersburg Aviation College,Zhongyuan University of Technology,Zhengzhou 450000,China)

机构地区：[1]南昌工程学院江西省精密驱动与控制重点实验室,江西南昌330099 [2]中原工学院中原彼得堡航空学院,河南郑州450000

出　　处：《南昌工程学院学报》2021年第6期78-82,共5页Journal of Nanchang Institute of Technology

基　　金：江西省教育厅科学技术研究项目(GJJ201929);河南省高校重点科研项目(21B470014)。

摘　　要：针对现有微位移驱动器控制精度低、位移行程小的问题,设计了一种以磁控形状记忆合金材料(MSMA)为驱动元件的新型驱动器。基于MSMA的磁致伸缩原理设计了驱动器的整体结构,通过计算确定了相关设计参数,采用有限元仿真软件COMSOL对磁路进行仿真。建立驱动器的位移输出模型,通过计算得到预压力为零时驱动器最大输出位移为1.12 mm。为验证理论模型的正确性,制作了实物样机并进行性能测试,测试结果表明输出位移最大可以达到1.07 mm,理论模型与实验结果较为相符,表明该装置设计合理,实现了驱动器较大的位移输出,对于拓宽驱动器的应用领域具有研究意义。In order to solve the problems of low control precision and small displacement stroke of the existing micro-displacement actuators,a new type of micro-displacement actuator based on Magnetic Shape Memory Alloy(MSMA)is designed.The whole structure of the actuator was designed based on the magnetostrictive principle of MSMA,and the relevant detailed design parameters are determined by calculation,the finite element simulation software COMSOL is used to simulate the magnetic circuit.The displacement output model of the actuator is established,and its maximum output displacement is 1.12 mm when the pre-pressure is zero.In order to verify the correctness of the theoretical model,a physical prototype was made and its performance was tested.The test results show that the maximum output displacement can reach 1.07 mm,and the theoretical model is consistent with the experimental results.It shows that the design of the device is reasonable,and the larger displacement output of the actuator is realized,which has research significance to broaden the application field of actuator.

关 键 词：磁控形状记忆合金 驱动器 COMSOL 结构设计 特性分析 

分 类 号：TH703[机械工程—仪器科学与技术]