| 基于曲率模态理论的简支梁损伤辨识研究 |
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| 引用本文： | 张利伟,鲍鹏.基于曲率模态理论的简支梁损伤辨识研究[J].信阳师范学院学报(自然科学版),2012,25(3):412-415. |
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| 作者姓名： | 张利伟 鲍鹏 |
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| 作者单位： | 1. 河南大学土木建筑学院,河南开封475004;新乡学院土木工程与建筑系,河南新乡453000
2. 河南大学土木建筑学院,河南开封,475004 |
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| 基金项目： | 河南省科技攻关计划项目(112102310662) |
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| 摘 要： | 选取结构中常见的构件——简支梁,利用有限元软件ANSYS建立有限元模型.通过模拟跨中损伤,分析模态振型位移值,得出曲率模态值.对比分析曲率模态在损伤处的变化规律,得出损伤与相应参数的关系.总结曲率模态在损伤处的应用规律,以期使曲率模态辨识损伤理论在其他结构中得到更好的应用.
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| 关 键 词： | 曲率模态 损伤 位移模态 刚度 |
Damage Identification of Simply Supported Beam Based on the Theory of Curvature Mode |
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| ZHANG Li-wei
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BAO Peng.Damage Identification of Simply Supported Beam Based on the Theory of Curvature Mode[J].Journal of Xinyang Teachers College(Natural Science Edition),2012,25(3):412-415. |
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| Authors: | ZHANG Li-wei BAO Peng |
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| Institution: | 1(1.School of Civil Engineering and Architecture,Henan University,Kaifeng 475004,China; 2.Department of Civil Engineering and Architecture,Xinxiang University,Xinxiang 453000,China) |
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| Abstract: | A common structure—simply supported beam was selected to construct finite element model by ANSYS.Curvature mode was obtained by stimulating the damage of mid-span and analyzing modal displacement.Variation of curvature mode at damage region was analyzed and the relationship of injure and corresponding parameters was obtained.Finally,application law of curvature mode at injure region was summarized so that theory of curvature mode was better used at other structure. |
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| Keywords: | curvature mode injury displacement mode stiffness |
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