高精度星模拟器光机系统与支撑结构设计及其模态分析

高精度星模拟器作为高精度星敏感器地面标定系统,随着近年来我国深空光学导航技术的发展,得到了广泛的应用。光机系统作为高精度星模拟器的核心部件,其镜筒结构设计是否合理、材料选择是否正确,直接影响高精度星模拟器的标定精度。本文根据高精度星模拟器光学系统给定的光学尺寸、装调要求,建立光学系统结构的三维仿真模型,并应用有限元ANSYS软件进行模态分析,最终结果证明了光机结构设计的合理性,满足高精度星模拟器设计要求。

Opto-Mechanical System and the Supporting Structure Design and Modal Analysis for very High Accuracy Star Simulator

Along with our country deep space optical navigation technology development in recent years, very high accu- racy star simulator as a very high precision of star sensor ground calibration system, has been widely used. LaNe field of optical system with long focal length as a very high accuracy star simulator is the core part of the Component, The lens structure design is reasonable or not, material selection is correct or not, directly affect the calibration accuracy of high-precision star simulator. In this paper, according to the very high accuracy of optical system for star simulator giv- en by optical size, alignment requirements, establish optical tion of finite element software ANSYS for thermodynamics, naI results prove the rationality of the design of mechanical requirements. system structure of 3D simulation model. And the applica- self weight deformation and stress, model analysis, the fi- structure, meet very high accuracy star simulator calibration