超磁致伸缩电-机转换器的驱动磁路设计

Magnet Circuit Design of Giant Magnetostrictive Actuator

在介绍了超磁致伸缩电-机转换器(Giant Magnetostrictive Actuator,简称GMA)的基本结构和工作原理的基础上,分析了磁场特性对转换器性能的影响。利用相关电磁学和磁路设计的基本理论,采用双线圈式驱动形式,对转换器的磁路进行设计和分析,给出了驱动线圈和偏置线圈结构参数的计算方法。为优化超磁致伸缩电-机转换器的磁路结构提供了理论依据。

Based on the introduction of basic structure and working principle of the giant magnetostrictive actuator,the effects of the magnetic field properties on the actuator' s characteristics are analyzed.By using electromagnetism and the basic principles of magnetic circuit design,in accordance with dual-coil-driven form of principle,this paper designs and analyzes the magnetic circuit of actuator.The method of calculation of the bias and driven solenoid coil structure parameters is given.All these above provide a theoretical basis for optimizing the magnetic structure of the giant magnetostritive actuator.