微位移驱动器的控制模型及仿真技术研究

Research of micro-displacement actuator modeling and simulation technology

介绍了超磁致伸缩驱动器(GMA)的结构、工作原理、特性方程以及超磁致伸缩效应模型,从有助于理解压磁效应的角度,建立了GMA的静态位移—力模型和磁—机耦合模型,并对后者进行了仿真研究,仿真结果显示:机械部分响应时间比较缓慢,减小阻尼会带来一些不利影响,如超调量增大,波动增大,要改善系统的动态性能,需要在控制系统部分增加合理的调节器。

The structure, principle, speciality equation and giant magnetostrictive domino offect model of giant magnetostrictive actuator（GMA） are introduced. Static displacement-force model and magnetism-machine coupling model are set up to understand the magnetostriction and simulation model is established. Simulation result shows that response time of machine part is slowness. It brings Some disbennifit affection if damp dowm ; for example, exceeding quantity andincreasing undulation. It is important to ameliorate dynamic characteristic of the system to append a reasonable adjustor.