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| 碳纤维支架振动抑制方法研究 | |
| 引用本文： | 曹亮,雷勇军,申智春.碳纤维支架振动抑制方法研究[J].上海航天,2011,28(2):63-68. |
| 作者姓名： | 曹亮 雷勇军 申智春 |
| 作者单位： | 1. 国防科学技术大学航天与材料工程学院,湖南长沙410073;上海卫星工程研究所,上海200240 2. 国防科学技术大学航天与材料工程学院,湖南长沙,410073 3. 上海卫星工程研究所,上海,200240 |
| 摘 要： | 对某卫星的碳纤维支架振动抑制方法进行了研究。讨论了约束阻尼减振方案离散约束层和离散阻尼层的影响,分析了不同状态的结果;结构修改采用加强板改进方案,分析了5种工况的影响;内部填充减振材料方案在支架的撑杆内部填充聚氨酯减振材料,分析了聚氨酯材料的弹性模量和损耗因子等参数对结构特性的影响。综合比较了不同方案的优缺点,认为该支架应在原约束阻尼方案的基础上,采用增加加强板1圈的改进方案。 |
| 关 键 词： | 碳纤维支架 振动抑制 约束阻尼 结构修改 聚氨酯 |
Research of Vibration Suppression Methods of Some Carbon Composite Bracket |
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| CAO Liang,LEI Yong-jun,SHEN Zhi-chun.Research of Vibration Suppression Methods of Some Carbon Composite Bracket[J].Aerospace Shanghai,2011,28(2):63-68. | |
| Authors: | CAO Liang LEI Yong-jun SHEN Zhi-chun |
| Institution: | CAO Liang1,2,LEI Yong-jun1,SHEN Zhi-chun2(1.College of Aerospace and Material Engineering,NUDT,Changsha Hunan 410073,China,2.Shanghai Institute of Satellite Engineering,Shanghai 200240,China) |
| Abstract: | The vibration suppression methods of the carbon composite bracket in some satellite were studied in this paper.The influence and result of different states of the disperse constraining layer and damping layer for the method constrained damping were analyzed by finite element method(FEM).The effect of reinforced shell modification was also analyzed by FEM in structure modification with the five states.And the stay bar filled with polyurethane foam material was applied,and the influence on the bracket propert... |
| Keywords: | Carbon material bracket Vibration suppression Constrained damping Structure modification Polyurethane material |
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