冲击响应谱在卫星运输冲击响应分析中的应用  

Application of shock response spectrum in analysis of satellite transportation shock response

作　　者：陈夜 冯彦军[1] 郑鸣轩 顾莉莉[1] 周徐斌[1] CHEN Ye;FENG Yanjun;ZHENG Mingxuan;GU Lili;ZHOU Xubin(Shanghai Institute of Satellite Engineering,Shanghai 201109,China)

机构地区：[1]上海卫星工程研究所,上海201109

出　　处：《航天器环境工程》2024年第2期138-143,共6页Spacecraft Environment Engineering

基　　金：上海市科技计划项目之扬帆专项资助项目(编号:23YF1444800)。

摘　　要：卫星运输过程中的动力学环境存在一定的随机性与不确定性,给卫星的安全运输带来隐患。目前工程上尚未形成通用化的卫星运输仿真方法,也未制定指导性的运输分析力学环境条件。文章提取卫星运输过程中经常出现的2种典型斜坡形式的冲击信号,基于ABAQUS软件建立卫星与运输支撑工装的有限元模型,分别开展了瞬态响应与冲击响应谱分析。结果表明,相比于瞬态响应分析,冲击响应谱分析节约了95%的运算量,且分析偏差在17%以内,并能够实现对响应最大情况的包络,可更好地满足工程上对仿真分析快速且准确的需求。The dynamics environment during satellite transportation exhibits some randomness and uncertainty,which may bring hidden troubles to the safety of satellite transportation.At present,there is neither universal satellite transportation simulation method in engineering nor guiding mechanical environmental conditions for transportation analysis.In this paper,two typical ramp shock signals that can often be caught during satellite transportation were extracted,and finite element model of satellite and its support structure for transportation was established based on ABAQUS software.The analyses of transient response and shock response spectrum(SRS)were conducted respectively.The results show that,compared with transient response analysis,SRS analysis saves 95%of the computing load with a deviation of not more than 17%,as well as implements an envelop for the maximum stress response,indicating that SRS analysis may better meet the demand of fast and accurate simulation in satellite engineering practice.

关 键 词：卫星运输 动力学环境 冲击响应 仿真分析 有限元建模 

分 类 号：V414.33[航空宇航科学与技术—航空宇航推进理论与工程]