航天器工程2011，Vol.20Issue(6)：69-73,5.
一种包带抱紧结构动态特性的试验研究
Experimental Investigation on Dynamic Characteristics of a Belt-clasp Structure
杨新峰 1杨慧 2张旭2
作者信息
- 1. 航天东方红卫星有限公司,北京100094
- 2. 北京空间飞行器总体设计部,北京100094
- 折叠
摘要
Abstract
This paper investigates the dynamical characteristics of a belt-clasp structure which is used to install the pressure vessel to the statellite.The relationships of the fundamental frequency of the belt-clasp with the preload and the vibration amplitude are measured,and the data analyses indicate that the fundamental frequency of the belt-clasp structure increases with the preload and reaches a stable value under certain preload.Through the tests simulating the satellite vibration level,the preload on the belt is obtained which could bear the satellite dynamic environment and basically keep the fundamental frequency of the belt-clasp structure unchanged.Under sine vibrations of three different vibration levels,the vibration data show that the fundamental frequency decreases with the vibration level,and the strong nonlinearity displayes in the belt-clasp.Finally,the tests on the vibration transmission in the belt-clasp structure under the sine vibration and the random vibration are carried out,the response data from the bottom to the belt-clasp interface,then to the top of the structure were analyzed and the vibration transmission in the belt-clasp structure is obtained.The test results show that the belt-clasp structure could isolate the random vibration very well.关键词
卫星/气瓶/包带抱紧结构/拧紧力矩/动态特性/测试Key words
satellite/pressure vessel/belt-clasp structure/preload torque/dynamical characteristics/test分类
航空航天引用本文复制引用
杨新峰,杨慧,张旭..一种包带抱紧结构动态特性的试验研究[J].航天器工程,2011,20(6):69-73,5.
