| 基于力限的加速度谱下凹技术研究 |
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| 引用本文： | 李正举,马兴瑞,韩增尧.基于力限的加速度谱下凹技术研究[J].航天器工程,2010,19(4):23-28. |
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| 作者姓名： | 李正举 马兴瑞 韩增尧 |
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| 作者单位： | 1. 中国空间技术研究院,北京,100094
2. 中国航天科技集团公司,北京,100037 |
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| 基金项目： | 国家重大科技专项工程项目 |
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| 摘 要： | 为了缓解随机振动“过试验”现象，通常需要在试验件共振频段将加速度谱下凹。结合工程实际，文章基于力限振动试验的基本原理，提出了基于力限的加速度谱下凹策略，最后计算了某航天器有效载荷的加速度下凹谱，可以为随机振动试验加速度条件下凹提供技术支持，具有较好的工程应用价值。
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| 关 键 词： | 航天器 力限振动试验 力限条件 加速度下凹 |
Notching of Acceleration Spectra Based on Force Limit for Spacecraft Vibration Testing |
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| LI Zhengju,MA Xingrui,HAN Zengyao.Notching of Acceleration Spectra Based on Force Limit for Spacecraft Vibration Testing[J].Spacecraft Engineering,2010,19(4):23-28. |
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| Authors: | LI Zhengju MA Xingrui HAN Zengyao |
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| Institution: | 1 China Academy of Space Technology, Beijing 100094, China ;2 China Aerospace Science and Technology Corp. , Beijing 100037, China) |
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| Abstract: | In standard vibration tests, acceleration specifications usually are notched to alleviate the over-testing problem. Based on the principle of force-limited vibration testing, this paper develops the strategy of notching acceleration spectra based on force limit, and calculates the notching spectra of a payload in vibration test. The strategy can provide nothing spectra for random vibration tests. |
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| Keywords: | spacecraft force limited vibration testing force specification acceleration spectra notching |
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