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《Journal of Vibration and Shock》 2016-16
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Analysis of dynamic load and ground vibration test condition based on apparent mass computation for spacecrafts

MAO Yuming;LIN Jianfeng;LIU Jinghua;SHU Zhongping;Shanghai Key Laboratory of Spacecraft Mechanism,Shanghai Institute of Aerospace System and Engineering;  
A method based on apparent mass computation was presented to analyze the interface loads and vibration conditions for ground vibration test. On one hand,this method can determine the interface loads between the spacecraft and base shaker with the presetting input acceleration spectrum. On the other hand,the presented method can also modify the input acceleration spectrum according to the design load of the launching process. Furthermore,this method utilizing to single degree of freedom vibration can be extended to multi-degree of freedom ground vibration test. A numerical simulation shows that the presented method is valid to analyze the interface load and input acceleration.
【Fund】: 国家自然科学基金资助项目(11102115)
【CateGory Index】: V216.21
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