Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data
To avoid the false results of deterministic identification methods induced by uncertainties, a fuzzy nearness-based method is proposed for the damage identification of bridge. An improved index based on ratios of modal shape components is used as identification measurements. The knowledge base for d...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2012/812932 |
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| _version_ | 1850161921282539520 |
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| author | Hanbing Liu Yubo Jiao Yongchun Cheng Yafeng Gong |
| author_facet | Hanbing Liu Yubo Jiao Yongchun Cheng Yafeng Gong |
| author_sort | Hanbing Liu |
| collection | DOAJ |
| description | To avoid the false results of deterministic identification methods induced by uncertainties, a fuzzy nearness-based method is proposed for the damage identification of bridge. An improved index based on ratios of modal shape components is used as identification measurements. The knowledge base for damage identification is established through corresponding relationship between fuzzified measurements and damage severities. The damage condition of test samples can be assessed based on approaching principle through fuzzy nearness with rules in knowledge base. A numerical analysis on a multigirder bridge considering uncertainty is presented to demonstrate the effectiveness of the proposed method. The results indicate that the fuzzy nearness-based method can achieve an accurate identification with success rate up to 93.75%. Antinoise analysis and the ability for dealing with incomplete information reveal its robustness. |
| format | Article |
| id | doaj-art-fa2726c2f568461cb1d2b40353b5c0a2 |
| institution | OA Journals |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-fa2726c2f568461cb1d2b40353b5c0a22025-08-20T02:22:41ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/812932812932Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal DataHanbing Liu0Yubo Jiao1Yongchun Cheng2Yafeng Gong3College of Transportation, Jilin University, Changchun 130022, ChinaCollege of Transportation, Jilin University, Changchun 130022, ChinaCollege of Transportation, Jilin University, Changchun 130022, ChinaCollege of Transportation, Jilin University, Changchun 130022, ChinaTo avoid the false results of deterministic identification methods induced by uncertainties, a fuzzy nearness-based method is proposed for the damage identification of bridge. An improved index based on ratios of modal shape components is used as identification measurements. The knowledge base for damage identification is established through corresponding relationship between fuzzified measurements and damage severities. The damage condition of test samples can be assessed based on approaching principle through fuzzy nearness with rules in knowledge base. A numerical analysis on a multigirder bridge considering uncertainty is presented to demonstrate the effectiveness of the proposed method. The results indicate that the fuzzy nearness-based method can achieve an accurate identification with success rate up to 93.75%. Antinoise analysis and the ability for dealing with incomplete information reveal its robustness.http://dx.doi.org/10.1155/2012/812932 |
| spellingShingle | Hanbing Liu Yubo Jiao Yongchun Cheng Yafeng Gong Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data Journal of Applied Mathematics |
| title | Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data |
| title_full | Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data |
| title_fullStr | Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data |
| title_full_unstemmed | Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data |
| title_short | Reduction of Uncertainties for Damage Identification of Bridge Based on Fuzzy Nearness and Modal Data |
| title_sort | reduction of uncertainties for damage identification of bridge based on fuzzy nearness and modal data |
| url | http://dx.doi.org/10.1155/2012/812932 |
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