航天器环境工程2017，Vol.34Issue(5)：495-499,5.DOI:10.3969/j.issn.1673-1379.2017.05.007
小卫星声-振联合试验耦合响应分析及预估
Analysis and estimation of satellite coupling responses in vibro-acoustic test
张群 1毕京丹 1王英诚 1卫国 1胡彦平1
作者信息
摘要
Abstract
The satellite encounters a vibro-acoustic environment in the powered phase caused by the pulsating and the thrust of the engine and the aerodynamic noise. The random vibration test, the acoustic noise test and the vibro-acoustic test are carried out separately for a satellite model. By comparing these results, it is found that at different frequency ranges, the base vibration and the acoustic noise have different effects on the structure's vibro-acoustic response. Based on this, a method is proposed to predict the vibro-acoustic response using the sum or the extremum envelope of the vibration and noise responses.关键词
卫星/振动环境试验/声-振联合试验/耦合响应Key words
satellite/dynamicenvironmental test/vibro-acoustic test/coupling responses分类
航空航天引用本文复制引用
张群,毕京丹,王英诚,卫国,胡彦平..小卫星声-振联合试验耦合响应分析及预估[J].航天器环境工程,2017,34(5):495-499,5.
