光学精密工程2017，Vol.25Issue(9)：2347-2358,12.DOI:10.3788/OPE.20172509.2347
叠堆式超磁致伸缩致动器磁场分布建模及分析
Modeling and analysis of magnetic field distribution for stack giant magnetostrictive actuator
摘要
Abstract
In this paper ,a kind of Stack Giant Magnetostrictive Actuator (SGMA) was designed ,then the magnetic field distribution model of SGMA was established ,and analytical research on model was conducted to increase uniformity of bias magnetic field of GM A .Firstly ,given the characteristics and drawbacks of infliction way of bias magnetic field in traditional GMA ,structural form of alternative arrangement for permanent magnet and GMM rod was adopted to design SGMA .Then by combining magnetic circuit model with Biot-Savart law , magnetic distribution model can accurately describe magnetic feature of SGMA was establish .Subsequently ,the influence of different parameters on magnetic field distribution feature was analyzed on established model ,and structural design method of SGMA was proposed .Finally ,model verification experiments were conducted .The result indicates :maximum relative error is lower than 4% when using established model to describe magnetic field distribution of SGMA ;maximum relative error is lower than 5% at the time of predicting output displacement of SGMA . The established model in this paper can describe work state of SGMA accurately ,increase system precision of SGM A and provide reference basis for structural design of SGM A .关键词
叠堆式超磁致伸缩致动器/磁场均匀性/磁场分布模型/模型分析/结构设计Key words
:stack giant magnetostrictive actuator/uniformity of magnetic field/magnetic field distribution model/model analysis/structural design分类
信息技术与安全科学引用本文复制引用
何忠波,荣策,李冬伟,薛光明,郑佳伟..叠堆式超磁致伸缩致动器磁场分布建模及分析[J].光学精密工程,2017,25(9):2347-2358,12.基金项目
国家自然科学基金资助项目(No.51275525) （No.51275525）
