| 反拱形水垫塘底板上举力特性的试验研究 |
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| 引用本文： | 杨文芳,魏强,朱兰琴.反拱形水垫塘底板上举力特性的试验研究[J].振动与冲击,2010,29(5):230-234. |
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| 作者姓名： | 杨文芳 魏强 朱兰琴 |
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| 作者单位： | （1.长春工程学院;2.天津大学） |
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| 摘 要： | 以实际工程高拱坝水垫塘底板稳定性研究为背景，阐述了反拱形水垫塘底板上举力的成因，建立了考虑板块下表面压力沿缝隙传递的失稳区板块专门水力学模型测量板块的上举力，在模型试验结果的基础上，分析了底板上举力的分布规律。给出的最大上举力经验公式，可用于工程设计中反拱结构的水动力荷载计算。
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| 关 键 词： | 反拱形 水垫塘 水流冲击 上举力 |
| 收稿时间： | 2009-5-4 |
| 修稿时间： | 2009-8-10 |
Anti-Vibration design for an airborne electronic equipment based on finite element method |
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| YANG Wen-fang,WEI Qiang,ZHU Lan-qin.Anti-Vibration design for an airborne electronic equipment based on finite element method[J].Journal of Vibration and Shock,2010,29(5):230-234. |
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| Authors: | YANG Wen-fang WEI Qiang ZHU Lan-qin |
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| Affiliation: | (1.ChangChun Institute of Technology;2.Tianjin University) |
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| Abstract: | Taking an electronic rack installed in a propeller aircraft as example, this paper introduces an anti-vibration design method based on finite elements analysis. Firstly, the finite element model of the rack is built by ANSYS software, and natural frequencies of the rack are obtained by means of modal analysis. Secondly, random vibration analysis is performed loading power spectrum density of propeller aircraft, and the random vibration response statistics and dangerous frequencies of some parts are obtained. Finally, according to the analyzed results and isolation principle, anti-vibration coefficient of structure system is obtained, and design of anti-vibration is hereby processed. The experimental results prove that the method is reasonable. |
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| Keywords: | electronic equipment finite elements method anti-vibration |
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