Photonic Sensors, 2016, 6 (4): 372, Published Online: Oct. 21, 2016
Effects of Rubber Shock Absorber on the Flywheel Micro Vibration in the Satellite Imaging System
Abstract
When a satellite is in orbit, its flywheel will generate micro vibration and affect the imaging quality of the camera. In order to reduce this effect, a rubber shock absorber is used, and a numerical model and an experimental setup are developed to investigate its effect on the micro vibration in the study. An integrated model is developed for the system, and a ray tracing method is used in the modeling. The spot coordinates and displacements of the image plane are obtained, and the modulate transfer function (MTF) of the system is calculated. A satellite including a rubber shock absorber is designed, and the experiments are carried out. Both simulation and experiments results show that the MTF increases almost 10 %, suggesting the rubber shock absorber is useful to decrease the flywheel vibration.
Changcheng DENG, Deqiang MU, Xuezhi JIA, Zongxuan LI. Effects of Rubber Shock Absorber on the Flywheel Micro Vibration in the Satellite Imaging System[J]. Photonic Sensors, 2016, 6(4): 372.