Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters
The paper presents an effective approach for damage identification of bridge based on Chebyshev polynomial fitting and fuzzy logic systems without considering baseline model data. The modal curvature of damaged bridge can be obtained through central difference approximation based on displacement mod...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/187956 |
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| _version_ | 1850168093604577280 |
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| author | Yu-Bo Jiao Han-Bing Liu Yong-Chun Cheng Ya-Feng Gong |
| author_facet | Yu-Bo Jiao Han-Bing Liu Yong-Chun Cheng Ya-Feng Gong |
| author_sort | Yu-Bo Jiao |
| collection | DOAJ |
| description | The paper presents an effective approach for damage identification of bridge based on Chebyshev polynomial fitting and fuzzy logic systems without considering baseline model data. The modal curvature of damaged bridge can be obtained through central difference approximation based on displacement modal shape. Depending on the modal curvature of damaged structure, Chebyshev polynomial fitting is applied to acquire the curvature of undamaged one without considering baseline parameters. Therefore, modal curvature difference can be derived and used for damage localizing. Subsequently, the normalized modal curvature difference is treated as input variable of fuzzy logic systems for damage condition assessment. Numerical simulation on a simply supported bridge was carried out to demonstrate the feasibility of the proposed method. |
| format | Article |
| id | doaj-art-e6abbd0a6a724c8f947883a46cf75f4d |
| 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-e6abbd0a6a724c8f947883a46cf75f4d2025-08-20T02:21:03ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/187956187956Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model ParametersYu-Bo Jiao0Han-Bing Liu1Yong-Chun Cheng2Ya-Feng Gong3Department of Transportation, Jilin University, No. 5988, Renmin Street, Changchun, Jilin 130025, ChinaDepartment of Transportation, Jilin University, No. 5988, Renmin Street, Changchun, Jilin 130025, ChinaDepartment of Transportation, Jilin University, No. 5988, Renmin Street, Changchun, Jilin 130025, ChinaDepartment of Transportation, Jilin University, No. 5988, Renmin Street, Changchun, Jilin 130025, ChinaThe paper presents an effective approach for damage identification of bridge based on Chebyshev polynomial fitting and fuzzy logic systems without considering baseline model data. The modal curvature of damaged bridge can be obtained through central difference approximation based on displacement modal shape. Depending on the modal curvature of damaged structure, Chebyshev polynomial fitting is applied to acquire the curvature of undamaged one without considering baseline parameters. Therefore, modal curvature difference can be derived and used for damage localizing. Subsequently, the normalized modal curvature difference is treated as input variable of fuzzy logic systems for damage condition assessment. Numerical simulation on a simply supported bridge was carried out to demonstrate the feasibility of the proposed method.http://dx.doi.org/10.1155/2015/187956 |
| spellingShingle | Yu-Bo Jiao Han-Bing Liu Yong-Chun Cheng Ya-Feng Gong Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters Shock and Vibration |
| title | Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters |
| title_full | Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters |
| title_fullStr | Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters |
| title_full_unstemmed | Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters |
| title_short | Damage Identification of Bridge Based on Chebyshev Polynomial Fitting and Fuzzy Logic without Considering Baseline Model Parameters |
| title_sort | damage identification of bridge based on chebyshev polynomial fitting and fuzzy logic without considering baseline model parameters |
| url | http://dx.doi.org/10.1155/2015/187956 |
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