| 基于小波分析的梁损伤识别方法初探 |
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| 引用本文： | 任宜春,林琳,马石成.基于小波分析的梁损伤识别方法初探[J].建筑技术开发,2004(2). |
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| 作者姓名： | 任宜春 林琳 马石成 |
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| 作者单位： | 湘潭大学建筑工程系 湘潭411005
(任宜春，林琳)，湘潭大学建筑工程系 湘潭411005(马石成) |
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| 摘 要： | 通过对冲击荷载作用下有损伤梁的响应进行分析 ,对某一时刻梁的变形进行连续小波变换 ,从小波变换系数的极值点判断损伤的位置 ,对跨中响应的小波包分解得到各频段能量的特征向量 ,作为判断损伤程度的依据
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| 关 键 词： | 小波分析 损伤识别 简支梁 特征向量 |
APPLICATION OF WAVELET ANALYSIS IN BEAM DAMAGE DIAGNOSIS |
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| Ren Yi-chun Lin Lin Ma Shi-cheng.APPLICATION OF WAVELET ANALYSIS IN BEAM DAMAGE DIAGNOSIS[J].Building Technique Development,2004(2). |
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| Authors: | Ren Yi-chun Lin Lin Ma Shi-cheng |
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| Affiliation: | Ren Yi-chun Lin Lin Ma Shi-cheng |
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| Abstract: | A wavelet-based approach is proposed for damage identification in beam structure.The displacement of the damaged simple-supported beam under sudden force is analyzed using continuous wavelet transform and the location is estimated by the maximum of wavelet coefficients.Also the displacement is analyzed by wavelet packet and the extent of the damage is estimated by the energe index. |
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| Keywords: | Wavelet analylsis Damage detection Simple-supported beam |
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