小型机载云台结构设计和分析*

作者：刘瑞，蒋蓁，雷小光 日期：2010-03-26/span> 浏览：3620 查看PDF文档

小型机载云台结构设计和分析*

刘瑞，蒋蓁，雷小光
（上海大学 机电工程与自动化学院，上海 200072）

摘要：针对小型无人机的拍摄需求问题，设计了能实现两自由度转动的小型机载云台结构。首先，在CATIA中建立了结构的三维实体模型；接着，在ANSYS中建立了其有限元模型，对结构的关键零部件进行了静力学分析，及对整体结构进行了模态分析。研究结果表明，设计的结构满足使用功能性和可靠性要求，并为进一步的结构优化和隔振技术研究提供了基础。
关键词：云台；有限元；静力分析；模态分析；自由度
中图分类号：TP271+.4文献标识码：A文章编号：1001-4551(2010)02-0005-03

Design and analysis of miniature onboard pan & tilt structure
LIU Rui, JIANG Zhen, LEI Xiaoguang
(School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China)
Abstract: Aiming at the shooting demand problem of small unmanned aerial vehicle, the mechanical structure of small onboard pan & tilt system was designed to realize twodegree of freedom(DOF) rotation. Firstly, the structure 3D solid model was established by using CATIA. Then, a finite element analysis(FEA) model was established in ANSYS to make static analysis and modal analysis. The results indicate that the structure has reasonable design and reliable performance. And it is also provides information for further research about structure optimization and vibration isolation.
Key words: pan & tilt; finite element analysis(FEA); static analysis; modal analysis; degree of freedom(DOF)
参考文献(References):
［1］成刚,杨随虎.无人机机载光电系统综述［J］.应用光学,2005,26(4):1-4.
［2］DENG Yinzhe, LIU Liang, GONG Zhenbang. Modeling Analysis of Vibration for Subminiature Unmanned Helicopter［C］. Proceedings of the 2005 IEEE International Workshop on Safety, Security and Rescue Robotics,2005.
［3］ORTIZ G G, LEE S. Design and Development of a Robust ATP Subsystem for the Altair UAVtoGround Lasercomm 2.5 Gbps Demonstration［C］//FreeSpace Laser communications Technologies, Proceedings of the SPIE,2003:103-104.
［4］PADFIELD G D. Helicopter Flight Dynamics: the Theory and Application of Flying Qualities and Simulation Modeling［M］. 2nd ed. Blackwell Science Ltd.,1996.
［5］胡海岩,孙久厚.机械振动与冲击［M］.北京：航空工业出版社,2002.
［6］赫雷,周克栋.利用ANSYS软件实现某武器发射平台振动模态分析［J］.弹箭与制导学报,2006,26(4):360-364.