基于有限元法的离轴TMA结构选型分析  

Structural Configuration Analysis of Off-axis TMA Based on Finite Element Method

作　　者：卢威[1] 傅丹鹰[1] 陶家生[1] 

机构地区：[1]北京空间机电研究所,北京100076

出　　处：《航天返回与遥感》2007年第2期34-38,共5页Spacecraft Recovery & Remote Sensing

摘　　要：运用CAD软件Pro/E建立了采用离轴非球面三反射镜光学系统空间遥感器的几何模型,并在此基础上建立了有限元模型。分析了4种结构构型方案的综合特性,包括自重变形分析、模态分析和热特性分析。通过对比4种方案的计算结果,说明其中两种结构设计在方案设计阶段具有一定的优势。By using software Pro/E, the geometrical models of the space remote sensor with off-axis TMA optical system have been established, based on which FEA model may build up. The article analyzes the comprehensive performances of four structural configurations, including the analyses on the deformation under gravity and the thermal performance characteristic, and the medal analysis as well. Compared with the calculating results of four schemes, two of them boast some advantages during the phase of scheme design.

关 键 词：空间遥感器 离轴非球面三反射镜 结构分析 有限元法 

分 类 号：V445.8[航空宇航科学与技术—飞行器设计]