卫星产品多轴随机振动试验条件制定方法初探  

The determination of conditions of multi-axis random vibration tests for satellite products

作　　者：刘沫[1] 冯咬齐 何玲[2,1] 

机构地区：[1]北京卫星环境工程研究所,北京100094 [2]可靠性与环境工程技术重点实验室

出　　处：《航天器环境工程》2013年第2期155-159,共5页Spacecraft Environment Engineering

基　　金：国家973项目(编号:613133);CAST创新基金项目

摘　　要：卫星产品多轴随机振动试验技术的难点之一是试验条件的制定。文章分析了多轴随机振动试验条件制定的理论基础,并就多轴随机振动试验条件的工程处理方法从模型使用、简化处理、互谱设计、时域信号等4个方面进行了探讨,最后从简化处理、遥测数据分析、仿真计算和现有试验数据分析对比4个角度对卫星产品多轴随机振动试验条件的制定思路提出了建议。One of the major difficulties in the multi-axis random vibration tests for satellite products is the determination of the test conditions. First, a theoretical analysis is made. Then, the currently used engineering processing methods are discussed, including the model related method, the simplification method, the cross-power spectrum design method, and the time-domain signal processing method. Finally, some suggestions for determining the conditions of multi-axis random vibration tests for satellite products are proposed from four perspectives, including the simplified processing, the telemetry data analysis, the simulation analysis, and the comparative study of the existed experimental data.

关 键 词：卫星产品 多轴随机振动 试验条件 相干函数 功率谱密度 

分 类 号：V474[航空宇航科学与技术—飞行器设计]