Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (14): 100-102.

• 研发、设计、测试 • Previous Articles     Next Articles

Finite element stiffness analysis of novel optical dynamic target’s structure

LI Bo1,2,WANG Wei-na3,TANG Jie1   

  1. 1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China
    2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China
    3.Henan Communication Vocational Technology College,Zhengzhou 450052,China
  • Received:2007-09-05 Revised:2007-12-17 Online:2008-05-11 Published:2008-05-11
  • Contact: LI Bo


李 博1,2,王伟娜3,唐 杰1   

  1. 1.中国科学院 长春光学精密机械与物理研究所,长春 130033
    2.中国科学院 研究生院,北京 100039
    3.河南交通职业技术学院,郑州 450052
  • 通讯作者: 李 博

Abstract: A novel optical dynamic target is devised to satisfy the need of indoor examination of photoelectric theodolite,and its merits and structure are also discussed.Three-dimensional entity model of novel target based on material mechanics is built on the platform of UG and the finite element model is built by the software named NX Nastran.According to the finite element stiffness analysis,the target’s deformation figures are acquired and the accuracy of the whole target can be computed.The experimental result shows the novel optical dynamic target has reasonable structure and good stiffness.In addition,the target’s error of elevation is 3.18″,and error of azimuth angle is 2.98″.It can measure dynamic movement performance accurately.

Key words: dynamic target, measure, finite element, stiffness

摘要: 为了更好的对光电经纬仪进行室内检测,提出了一种新型光学动态靶标,并对其优点和结构进行分析。基于材料力学原理建立靶标三维实体造型,以有限元分析软件NX Nastran为辅助工具,对新型动态靶标的结构刚度进行分析,得出各个部件在靶标工作过程中的变形量,并计算靶标整体精度。结果表明,新型靶标结构形式合理、刚度良好,其俯仰角误差3.18″、方位角误差2.98″,能够初步满足光电经纬仪动态测角性能检测的需要。

关键词: 动态靶标, 检测, 有限元, 刚度