卫星飞轮隔振与吸振联合减振系统设计

Abstract

The methods to reduce the vibration of a satellite flywheel were analyzed,and a joint vibration reduction scheme was proposed by combined vibration isolation and vibration absorbing.The effect of the parameters of assembled isolators on its vibration reduction was researched.According to the shortcomings of the system,the circumferential distributed absorbing method and a corresponding system were proposed to reduce the vibration of the flywheel.The simulation shows that the vibration response of main structure subjected to external force dissipates by 90%in all directions except Xdirection.Then,circumferential distributed absorbers were designed to improve the performance of assembled isolators in Xdirection,and a simulation model of the joint vibration reduction was also established.Compared with unsophisticated isolators,the conclusion indicates that the performance of the joint vibration reduction is nearly improved 50%in Xdirection.Consequently,the joint vibration reduction scheme is suitable for reducing the vibration response of flywheel and is proved to be effective and practical in the vibration control for other vibration sources in satellites.