摘要
简要概述了航天器宽带随机振动试验和分析的必要性以及国内外预示技术的发展与现状 ;然后以某卫星为例 ,利用有限元方法和统计能量分析 (SEA)对整星的宽带随机振动力学环境进行了预示 ;经过与试验结果的对比 ,验证了上述方法的可行性。
The significance of the research related to the wide band random vibration analysis on spacecraft and the developing history and recent status home and abroad are summarized briefly.Then,the hybrid application of Finite Element Method and Statistical Energy Analysis is used to predict the response of the whole satellite under wide band random vibration excitation,the prediction result accords with that of experiment well.
出处
《强度与环境》
2002年第2期32-37,共6页
Structure & Environment Engineering
关键词
航天器
宽带随机振动
响应分析
有限元
振动试验
Spacecraft
Finite Element Method
Statistical Energy Analysis Random Vibration NASTRAN
