Reducing the negative effects of flywheel disturbance on space camera image quality using the vibration isolation method

作     者：Changcheng DENG Deqiang MU Junli GUO Peng XIE 

作者机构：Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China University of Chinese Academy of Sciences Beijing 100039 China Changehun University of Technology Changeh-un-130012 China 

出 版 物：《Frontiers of Optoelectronics》 (光电子前沿（英文版）)

年 卷 期：2017年第10卷第1期

页      面：80-88页

核心收录：

学科分类：1304[艺术学-美术学] 13[艺术学] 08[工学] 0804[工学-仪器科学与技术] 082504[工学-人机与环境工程] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National High Technology Research and Development Program of China (863 Program) 

主　　题：micro vibration modulate transfer function,vibration isolation flywheel disturbance 

摘      要：Although the performance of space cameras has largely improved, the micro vibration from flywheel disturbances still significantly affects the image quality of these cameras. This study adopted a passive isolation method to reduce the negative effect of flywheel disturbance on image quality. A metal-rubber shock absorber was designed and installed in a real satellite. A finite element model of an entire satellite was constructed, and a transient analysis was conducted afterward. The change in the modulate transfer function was detected using ray tracing and optical transfer function formulas. Experiments based on real products were performed to validate the influence of the metal-rubber shock absorber. The experimental results confirmed the simulation results by showing that the negative effects of flywheel dis- turbance on the image quality of space cameras can be diminished significantly using the vibration isolation method.