薄板光学反射面面形变形驱动器集成设计  

Integrated Design of Actuator for Thin Plate Optical Reflector

作　　者：孙小庆[1] 王智磊[2] 杨斌堂[1] 夏昂 赵发刚[2] SUN Xiaoqing;WANG Zhilei;YANG Bintang;XIA Ang;ZHAO Fagang(State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Institute of Satellite Engineering,Shanghai 200240,China)

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240 [2]上海卫星工程研究所,上海200240

出　　处：《上海航天》2018年第3期60-66,共7页Aerospace Shanghai

基　　金：上海航天基金项目(USCAST2015-5)

摘　　要：针对某光学载荷薄板反射面面形调整需求,对一种新型精密微调驱动器开展了集成设计研究。分析了柔性太阳翼冷热交变对敏感载荷的影响,设计了一种基于巨磁致伸缩材料(GMM)的主动补偿驱动器,对驱动器关键部件进行了优化。建立了驱动器的动力学模型,并利用模糊自适应PID算法对其进行闭环控制。仿真结果表明:设计的驱动器能实现较大的行程、较高的定位精度,可用于面形变形补偿。Integrated design of an actuator for the thin plate optical reflector is conducted in this paper.Due to the particularity of the thermal flutter of the solar array,a finite element model is established to analyze dynamic responses,based on which,a magnetostrictive actuator（GMM）is proposed for performing surface deformation compensation.In addition,the dynamic model of the actuator is established and the performance is discussed by using the fuzzy adaptive PID algorithm.The results show that the proposed actuator can achieve a large stroke,higher positioning accuracy,and can be used for surface deformation compensation.

关 键 词：光学形面补偿 巨磁致伸缩驱动器 集成设计 柔性放大机构 优化设计 有限元仿真 动力学建模 闭环控制 

分 类 号：TH11[机械工程—机械设计及理论]