Design and Optimization of Vibration Isolation System for Spacecraft Transport Package Box

Abstract

The damping effect of vibration isolation system for spacecraft transport package box is directly associated with superior or inferior mechanical environment for spacecraft transportation. In this Article, the design process and program for vibration isolation system for spacecraft transport package box were introduced first; followed by analysis on excitation and response during spacecraft transportation by train; finally, an optimization program of vibration isolation system applicable to current working conditions for transportation was given. The results showed that: the frequency of railway road spectrum excitation was concentrated at 1.8Hz and 6.2Hz, indicating that the current vibration isolation system for package box did not have better damping effect. After reducing first-order inherent frequency by about 3Hz, acceleration root mean square may reduce by 40%.