Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension
Identification of structural crack location has become an intensely investigated subject due to its practical importance. In this paper, a hybrid method is presented to detect crack locations using wavelet transform and fractal dimension (FD) for beam structures. Wavelet transform is employed to dec...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/832763 |
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| _version_ | 1850178439698448384 |
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| author | Yong-Ying Jiang Bing Li Zhou-Suo Zhang Xue-Feng Chen |
| author_facet | Yong-Ying Jiang Bing Li Zhou-Suo Zhang Xue-Feng Chen |
| author_sort | Yong-Ying Jiang |
| collection | DOAJ |
| description | Identification of structural crack location has become an intensely investigated subject due to its practical importance. In this paper, a hybrid method is presented to detect crack locations using wavelet transform and fractal dimension (FD) for beam structures. Wavelet transform is employed to decompose the mode shape of the cracked beam. In many cases, small crack location cannot be identified from approximation signal and detailed signals. And FD estimation method is applied to calculate FD parameters of detailed signals. The crack locations will be detected accurately by FD singularity of the detailed signals. The effectiveness of the proposed method is validated by numerical simulations and experimental investigations for a cantilever beam. The results indicate that the proposed method is feasible and can been extended to more complex structures. |
| format | Article |
| id | doaj-art-bc161b6a5baa4022a42c7ec8bc297eb5 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-bc161b6a5baa4022a42c7ec8bc297eb52025-08-20T02:18:43ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/832763832763Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal DimensionYong-Ying Jiang0Bing Li1Zhou-Suo Zhang2Xue-Feng Chen3The State Key Laboratory for Manufacturing Systems Engineering, Xi’an 710049, ChinaThe State Key Laboratory for Manufacturing Systems Engineering, Xi’an 710049, ChinaThe State Key Laboratory for Manufacturing Systems Engineering, Xi’an 710049, ChinaThe State Key Laboratory for Manufacturing Systems Engineering, Xi’an 710049, ChinaIdentification of structural crack location has become an intensely investigated subject due to its practical importance. In this paper, a hybrid method is presented to detect crack locations using wavelet transform and fractal dimension (FD) for beam structures. Wavelet transform is employed to decompose the mode shape of the cracked beam. In many cases, small crack location cannot be identified from approximation signal and detailed signals. And FD estimation method is applied to calculate FD parameters of detailed signals. The crack locations will be detected accurately by FD singularity of the detailed signals. The effectiveness of the proposed method is validated by numerical simulations and experimental investigations for a cantilever beam. The results indicate that the proposed method is feasible and can been extended to more complex structures.http://dx.doi.org/10.1155/2015/832763 |
| spellingShingle | Yong-Ying Jiang Bing Li Zhou-Suo Zhang Xue-Feng Chen Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension Shock and Vibration |
| title | Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension |
| title_full | Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension |
| title_fullStr | Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension |
| title_full_unstemmed | Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension |
| title_short | Identification of Crack Location in Beam Structures Using Wavelet Transform and Fractal Dimension |
| title_sort | identification of crack location in beam structures using wavelet transform and fractal dimension |
| url | http://dx.doi.org/10.1155/2015/832763 |
| work_keys_str_mv | AT yongyingjiang identificationofcracklocationinbeamstructuresusingwavelettransformandfractaldimension AT bingli identificationofcracklocationinbeamstructuresusingwavelettransformandfractaldimension AT zhousuozhang identificationofcracklocationinbeamstructuresusingwavelettransformandfractaldimension AT xuefengchen identificationofcracklocationinbeamstructuresusingwavelettransformandfractaldimension |