超小型无人机光电稳定平台照准架的结构优化设计

本资料包含pdf文件1个，下载需要1积分

Optimal Design of Aiming Frame Structure of PhotoelectricStabilized Platform for Small UAVsLiu Zhongyu ，Zhang Tao ，Li Jiaquan ，Li Ming ，Wang Shuai(1.Changchun Institute of Optics，Fine Mechanics and Physics，Chinese Academy ofSciences，Changehun，1 30033，China；2.University of Chinese Academy of Sciences，Beijing，100039，China)Abstract：The aiming frame of photoelectric stabilized platform for small unmanned aerial vehictes(UAVs)is thekey component that ensures accuracy index of platform.In order to reduce the mass and the size of the compo-nent。the aiming frame structure and the case of their force are studied with NX/Nastran.Then，the optimiza-tion design of the aiming frame structure is achieved according to the analysis results.The results show that themass of the aiming frame is reduced by 88 g，which is 30 of the primary weight，and that is beneficial tolightweight design of the platform.The modal analysis and thermal analysis are carried out on the optimized ai-ming frame.It indicates that the aiming frame S first-order natural frequency is 4 1 5 HZ by modal analysis andthe thermal deformation of the aiming frame is 0.083 mm in the temperature difference of 1 20。C by thermal a-nalysis.The analysis results meet overall performance indexes of aircraft.Finally，through the stabilized accura-cy and angle measurement accuracy test，vibration test，high and low temperature tests and flight test，the cor-rectness of the simulation analysis are proved，which indicates that the optimized design of the aiming frame issuccessfu1。

Key words：small unmanned aerial vehicles(UAVs)；aiming frame；structure optimization；stabilizedplatform基金项目：国家高技术研究发展计划(八六三”计划)(2008AA121803)资助项 目；国家重点基础研究发展计划(九七三”计划)(2O09CB724OO6O7)资助项目。

收稿 日期 ：2012-02-13；修订 日期 ：2012-04-10通信作者：张涛，男，教授，博士生导师，1964年出生，E-mail：Zhangt###ciomp.ac.cn。

3报学 A&学 .∽大-天O盯空.耋 U航 唱.云. 京№南m第 1期 刘仲宇，等 ：超小型无人机光电稳定平台照准架的结构优化设计 109[103 Zhou x Y，Yu R X，Li J P，et a1.Structure optimaldesign of rol gimbal for an aerial three-axis ISPbased on FEM modal analysis[cl//201 1 Third In-ternational Conference on Measuring Technology andMechatronics Automation (ICMTMA).[S.1.]：IEEE，2011：373-376。

[11]甘至宏，张葆，撖芄芄.机载光电稳定平台框架结构工程分析[J].光学精密工程，2008，16(12)：2441-2446。

Gan Zhihong，Zhang Bao，Han Pengpeng.Engineer-ing analysis of airborne optoelectronic platform framestructure[J].Opt Precision Eng，2008，16(12)：2442446。

[12]洪如瑾.UG NX4高级仿真培训教程[M].北京 ：清华大学出版社，2007。

Hong Rujin.Tutorial cultivate of advanced simula-tion[M].Beijing：Tsinghua University Press，2007。

[13]王平 ，张葆，程志峰，等.变焦距镜头凸轮结构优化设计l-J].光学精密工程，2010，18(4)：893-898。

Wang Ping，Zhang Bao，Cheng Zhifeng，et a1.Opti-mal design of cam structure of zoom lens[J].OptPrecision Eng，2010，18(4)：893-898。

[14]杨洪涛，贾继强.机载光电平台内框架刚度及模态有限元分析 [J].计算机仿真，2005，22(11)：311-314。

Yang Hongtao，Jia Jiqiang.Finite element modalityand stiffness analysis of airborne electro-optical plat-form inner-gimbal[J].Computer Simulation，2005，22(1I)：311-314。