结构星噪声与振动组合环境激励试验及效应研究  

Random Vibration and Acoustics Combined Testing and Effect Analysis of Satellites

作　　者：晏廷飞[1] 方贵前[1] 刘沫[1] 

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《噪声与振动控制》2017年第6期131-134,162,共5页Noise and Vibration Control

基　　金：总装共性技术资助项目(B112345678)

摘　　要：受地面试验技术条件的限制,目前对卫星发射及飞行过程所经历的复合环境采用单项环境模拟试验来实现,通常是进行随机振动试验或者噪声试验。实际上,无论单独的随机振动试验还是单独的噪声试验都难以准确模拟卫星在发射飞行状态所经历的复合环境,在不同频段会存在"过"或"欠"试验的问题。以某型号结构星为对象,开展噪声与振动组合试验技术研究,对声振组合试验、随机振动试验、噪声试验的有效性及耦合效应进行分析与总结,为后续卫星产品开展相关试验提供参考。Due to the limitation of ground environment test technique, only the single-item environment test is used currently to simulate the combined environment during the period of satellite launch and flight. In general, random vibration test or acoustics test is carried on individually. In fact, it is difficult to precisely simulate the combined environment by using either of these methods since the over-tests or under-tests may occur very often in different frequency bands. In this study,with a type of the satellite structure as the object, the acoustics and vibration combined test technique is discussed. The effectiveness and coupling effect of the acoustics and vibration combined test, random vibration test and acoustic test are analyzed and summarized. This study can gave some reference for similar test for other satellite products.

关 键 词：振动与波 声振组合 噪声试验 随机振动 耦合效应 

分 类 号：O327[理学—一般力学与力学基础] TK417[理学—力学]