| 某航天器姿态控制机组随机振动响应分析 |
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| 引用本文： | 毛国斌.某航天器姿态控制机组随机振动响应分析[J].上海航天,2007,24(3):54-57. |
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| 作者姓名： | 毛国斌 |
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| 作者单位： | 国防科学技术大学,航天与材料工程学院,湖南,长沙,410073 |
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| 摘 要： | 根据结构件宽带随机振动原理,用NASTRAN有限元分析软件对某航天器姿态控制机组的随机振动应力进行了动力学分析。用大质量法模拟基础加速度激励,用模态法计算频率响应。分析表明,计算值与试验结果基本一致。该分析法可在设计阶段用于预示产品的随机振动响应。
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| 关 键 词： | 结构件 随机振动 有限元法 加速度响应 |
| 文章编号： | 1006-1630（2007）03-0054-04 |
| 修稿时间： | 2006-06-01 |
Random Vibration Response Prediction of Some Spacecraft Attitude-Control Thruster Set |
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| MAO Guo-bin.Random Vibration Response Prediction of Some Spacecraft Attitude-Control Thruster Set[J].Aerospace Shanghai,2007,24(3):54-57. |
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| Authors: | MAO Guo-bin |
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| Institution: | College of Aerospace and Material Engineering, NUDT, Changsha Hunan 410073, China |
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| Abstract: | According to the theory of wide-band random vibration analysis of structure component,the dynamic analysis of random vibration stress for some spacecraft attitude control thruster set was made by NASTRAN finite element method(FEM) software in this paper.The base acceleration excitation was simulated by big mass method and frequency response was calculated by mode method.The analysis showed that the computation result of FEM was agreed with the test one.This method could be applied on prediction of the random vibration response in design stage. |
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| Keywords: | Structural component Random vibration Finite element method Acceleration response |
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