| MTS液压伺服加载系统钢门架模态分析 |
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| 引用本文： | 程长征,牛忠荣,余果,黄峻峻.MTS液压伺服加载系统钢门架模态分析[J].钢结构,2008,23(1):10-12. |
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| 作者姓名： | 程长征 牛忠荣 余果 黄峻峻 |
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| 作者单位： | 合肥工业大学,土木建筑工程学院,合肥,230009 |
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| 摘 要： | MTS液压伺服加载系统试验机在进行疲劳试验时，其支承试验机的钢门架在某些情况下振动非常明显，钢门架的振动对试验结果会产生很大的负面影响。通过采用MSC．Patran＆Nastran有限元软件对钢门架进行模态分析，得到钢门架的前10阶振型和固有频率；再采用锤击法试验测量钢门架的固有频率。通过比较可以发现，有限元模拟结果与试验结果能很好吻合。分析结果可用于设定试验机工作频率范围，避免试验架的共振。
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| 关 键 词： | 钢门架 有限元法 锤击法 模态分析 |
| 收稿时间： | 2007-07-03 |
| 修稿时间： | 2007年7月3日 |
MODAL ANALYSIS OF THE STEEL PORTAL FRAME FOR THE MTS HYDRAULIC SERVO LOADING SYSTEM |
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| Cheng Changzheng,Niu Zhongrong,Yu Guo,Huang Junjun.MODAL ANALYSIS OF THE STEEL PORTAL FRAME FOR THE MTS HYDRAULIC SERVO LOADING SYSTEM[J].Steel Construction,2008,23(1):10-12. |
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| Authors: | Cheng Changzheng Niu Zhongrong Yu Guo Huang Junjun |
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| Affiliation: | Cheng Changzheng Niu Zhongrong Yu Guo Huang Junjun(School of Civil Engineering,Hefei University of Technology Hefei 230009) |
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| Abstract: | The obvious vibrations has occurred on the steel portal frame of the MTS hydraulic servo loading system in the process of the fatigue test.These vibrations result in great negative effects on the results of the test.The finite element software(MSC.Patran&Nastran)is applied to analyze the mode of the steel portal frame.The natural frequencies of the steel portal frame from mode 1 to mode 10 are obtained by the finite element method.In order to verify the numerical results,a hammer-blow method is applied to m... |
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| Keywords: | steel portal frame finite element method hammer-blow method modal analysis |
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