| 基于试验模态分析的单损伤检测 |
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| 引用本文： | 沈文浩,张森文. 基于试验模态分析的单损伤检测[J]. 暨南大学学报(自然科学与医学版), 2006, 27(3): 420-424 |
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| 作者姓名： | 沈文浩 张森文 |
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| 作者单位： | 暨南大学应用力学研究所,广东,广州,510632;暨南大学应用力学研究所,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金;广东省博士启动基金 |
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| 摘 要： | 以悬臂梁作为研究对象,对其正常状态以及不同损伤状态进行模态测试.采用了频响函数和固有频率作为结构损伤参数来判定损伤位置与损伤程度,并就这两种不同的损伤参数的敏感性进行了对比.结果表明,以频响函数的变化对结构损伤进行识别是新的有效可行的方法.
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| 关 键 词： | 损伤检测 试验模态分析 固有频率 频响函数 |
| 文章编号： | 1000-9965(2006)03-0420-05 |
| 修稿时间： | 2005-09-26 |
Study on single damage detection based on experimental modal analysis |
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| SHEN Wen-hao,ZHANG Sen-wen. Study on single damage detection based on experimental modal analysis[J]. Journal of Jinan University(Natural Science & Medicine Edition), 2006, 27(3): 420-424 |
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| Authors: | SHEN Wen-hao ZHANG Sen-wen |
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| Abstract: | Modal tests were done on cantilever beams in their healthy and different damaged conditions.The Frequency response function(FRF) and the natural frequency were adopted as the damaged modal parameters to determine the location and extent of damages.The sensitivities of different damaged modal parameters were also studied.The results illustrated that the damage detection approach using FRF is new,efficient and simple for structures. |
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| Keywords: | damage detection experimental modal analysis natural frequency frequency response function |
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