静电悬浮加速度计地面试验系统微位移驱动器控制模型研究

Micro-displacement Actuator Modeling Research of Electrostatic Suspension Accelerometer Ground Examination System

介绍了超磁致伸缩驱动器(GMA)的结构,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 of GMA is introduced. Static displacement-force model and magnetism-machine coupling model for helping understand the magnetostriction and establishes simulation model are given. Simulation result shows that response time of machine part is slowness. It brings some disbennifit affection if minish damp. For example,exceed quantity and undulation will argument. It is important to ameliorate dynamic characteristic of the system to append a reasonable adjustor.