长焦距空间遥感器支撑结构设计研究

Supporting Structure Design of Long Focus Space Remote Sensor

为了提高分辨力,空间遥感器采用长焦距和较大的光学孔径是必然的选择。但随着焦距增大,给遥感器支撑结构设计带来了困难。必须通过合理的支撑结构设计,才能保证其光学系统在发射的动力学过程中、空间工作环境下和一定热环境下具有较高的尺寸稳定性。本文对采用卡式光学系统的长焦距空间遥感器主要支撑结构进行了研究。工程分析表明,遥感器的支撑结构很好地保证了空间遥感器的工作稳定性,而其支撑件自身在一定的动态环境下不会破坏。

Space remote sensor adopts more optical design of long focus and large optical aperture to get high reso- lution. However, the design trend brings more difficult to supporting structure design of space remote sensor,which must be reasonably design to insure the optical system possessing high dimension stabilization during the dynamic environment of launching and the orbit environment. The main supporting structure of some space remote sensors adopting Kse optical system with long focus is researched detailedly in the paper.The engineering analysis by FEA indicates that the supporting structure of the space remote sensor would not destroyed in some difinite dynamic envi- ronment. The dimension stabilization of optical system could be insured.