Free-Interface Modal Synthesis Based Substructural Damage Detection Method
Free-interface modal synthesis method is applied to civil structure, and a substructure method is proposed by introducing the method into global sensitivity method. The substructure expression of the derivatives of eigenvalues and eigenvectors with respect to elemental parameters is obtained. The ac...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/741697 |
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| _version_ | 1832560542975262720 |
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| author | Shanghong Chen Wei Lin Jiexin Yu Ai Qi |
| author_facet | Shanghong Chen Wei Lin Jiexin Yu Ai Qi |
| author_sort | Shanghong Chen |
| collection | DOAJ |
| description | Free-interface modal synthesis method is applied to civil structure, and a substructure method is proposed by introducing the method into global sensitivity method. The substructure expression of the derivatives of eigenvalues and eigenvectors with respect to elemental parameters is obtained. The accuracy of the application of free-interface modal synthesis method is evaluated with different retained modes in substructure, and then the effectiveness of the proposed substructure sensitivity method is illustrated through an 11-storey building under both single- and multidamage cases. Both the damage locations and the extent can be effectively identified. By comparing it with the identical results of global sensitivity method, the proposed method can be faster in detecting the damage location and more stable under multidamage cases. Since this substructure sensitivity method only needs to update sensitivity matrix in the substructure with relative small number of DOFs, it may save much computation effort and become more efficient. |
| format | Article |
| id | doaj-art-a6bf9d5c58f5495eb8f3eb92fe1697c2 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-a6bf9d5c58f5495eb8f3eb92fe1697c22025-02-03T01:27:17ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/741697741697Free-Interface Modal Synthesis Based Substructural Damage Detection MethodShanghong Chen0Wei Lin1Jiexin Yu2Ai Qi3School of Civil Engineering, Fuzhou University, Fuzhou 350116, ChinaSchool of Civil Engineering, Fuzhou University, Fuzhou 350116, ChinaSchool of Civil Engineering, Fuzhou University, Fuzhou 350116, ChinaSchool of Civil Engineering, Fuzhou University, Fuzhou 350116, ChinaFree-interface modal synthesis method is applied to civil structure, and a substructure method is proposed by introducing the method into global sensitivity method. The substructure expression of the derivatives of eigenvalues and eigenvectors with respect to elemental parameters is obtained. The accuracy of the application of free-interface modal synthesis method is evaluated with different retained modes in substructure, and then the effectiveness of the proposed substructure sensitivity method is illustrated through an 11-storey building under both single- and multidamage cases. Both the damage locations and the extent can be effectively identified. By comparing it with the identical results of global sensitivity method, the proposed method can be faster in detecting the damage location and more stable under multidamage cases. Since this substructure sensitivity method only needs to update sensitivity matrix in the substructure with relative small number of DOFs, it may save much computation effort and become more efficient.http://dx.doi.org/10.1155/2014/741697 |
| spellingShingle | Shanghong Chen Wei Lin Jiexin Yu Ai Qi Free-Interface Modal Synthesis Based Substructural Damage Detection Method Shock and Vibration |
| title | Free-Interface Modal Synthesis Based Substructural Damage Detection Method |
| title_full | Free-Interface Modal Synthesis Based Substructural Damage Detection Method |
| title_fullStr | Free-Interface Modal Synthesis Based Substructural Damage Detection Method |
| title_full_unstemmed | Free-Interface Modal Synthesis Based Substructural Damage Detection Method |
| title_short | Free-Interface Modal Synthesis Based Substructural Damage Detection Method |
| title_sort | free interface modal synthesis based substructural damage detection method |
| url | http://dx.doi.org/10.1155/2014/741697 |
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