Comparison Between Spacecraft Design Load of Random Vibration

doi:10.3780/j.issn.1000-758X.2013.02.002

›› 2013, Vol. 33 ›› Issue (2): 7-12.doi: 10.3780/j.issn.1000-758X.2013.02.002

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Comparison Between Spacecraft Design Load of Random Vibration

ZHANG Yu-Mei, HAN Zeng-Yao, LIU Shao-Kui

Beijing Institute of Spacecraft System Engineering, Beijing 100094

Received:2012-08-02 Revised:2012-09-26 Published:2013-04-25 Online:2013-04-25

Abstract

Abstract: It is an important step for spacecraft design and analysis to convert random vibration load to quasi static design load， which influences mass of spacecraft structure directly. The theory and methods of design load based on the peak value of acceleration response and displacement response were simply introduced. The differences between the two methods were compared by analytics and FEM. The design load based on the peak value of acceleration response is larger than that based on the peak value of displacement response. The design load based on the peak value of displacement response is recommended and will lighten mass of spacecraft structure.

Key words: Random vibration, Design load, Quasi static load, Equivalent response, Spacecraft

ZHANG Yu-Mei, HAN Zeng-Yao, LIU Shao-Kui. Comparison Between Spacecraft Design Load of Random Vibration[J]. , 2013, 33(2): 7-12.

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Comparison Between Spacecraft Design Load of Random Vibration

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