
第22卷
第1期
2014年1月
文章编号
1004924X(2014)01-011708
光学精密工程
Optics and Precision Engineering
车载大口径刚性支撑式快速反射镜
徐新行1.2*,高云国1,杨洪波1,王兵1,韩旭东1
(1.中国科学院长春光学精密机械与物理研究所,吉林长春130033;
2.中国科学院大学,北京100049)
Vol.22No.1
Jan.2014
摘要:为了适应车载平台恶劣的工作环境,设计了一种大口径刚性支撑式快速反射镜。针对车载跟瞄转台对快速反射镜的应用需求选择音圈电机为驱动器,并分别设计了快速反射镜系统的平面反射镜、驱动器、支撑基座、测量元件和机械结构。然后,应用有限元分析方法,有效地实现了平面反射镜的轻量化及支撑基座的模态分析。快速反射镜通过球型铰链实现其运动部分与不动部分的连接,主要载荷通过链由支撑基座间接承载,从而有效地保障了大口径快速反射镜的承载能力和环境适应性。最后,组建了伺服控制系统,并对控制带宽和指向精度进行了测试。结果显示:所设计的车载大口径快速反射镜带宽达67Hz,方位指向精度为1.0"、俯仰指向精度为1.1",表明控制系统稳定实用,满足车载平台的应用要求。
关键调:快速反射镜;刚性支撑;控制带宽:指向精度
中图分类号:TH703
文献标识码:A
doi:10.3788/OPE.20142201.0117
Large-diameterfaststeeringmirroronrigidsupport technology
fordynamicplatform
XU Xin-hang'-2·,GAO Yun-guo',YANG Hong-bo,WANG Bing',HAN Xu-dong
(l.ChangchunInstitute of Optics,FineMechanics and Physics
ChineseAcademyof Sciences,Changchun130033,China;
2.Universityof ChineseAcademyofSciences,Beijing100049,China)
Correspondingauthor,E-mail:zrh123321zrh@163.com
Abstract: To adapting to the execrable working conditions of a dynamic platform, a large-diameter Fast Steering Mirror(FSM) with a rigid support structure was designed. Firstly, the lightweight re flector, actuators, angle measurement elements,and the support structure of FSM system were de-signed and selected on the basis of the applied requirement of a vehicle theodolite for FSMs respective ly. Then ,the reflector was lightweighted and the mode of support base was analyzed by finite element method. The moving parts of the FSM were connected with static parts by a spherical hinge and its main loads were carried out by the support base through the hinge indirectly. The design allows the FSM to bear large loads and to be suitable for the poor working conditions. Finally, the control sys-tem of FSM was constituted, and its control bandwidth and pointing precision were tested. The test
收稿日期:2013-03-18;修订日期:2013-04-12.
基金项目:国家863高技术研究发展计划资助项目(No.2011AA7031024G);吉林省自然科学基金资助项目(No
201115123)