Damage identification in a substructure of a box-section girder
This paper proposes a substructural damage identification approach without the information of responses and forces at interface degrees-of-freedom. The proposed algorithm is based on a dynamic response reconstruction technique using the unit impulse response function in the wavelet domain. The relat...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/50940 |
| _version_ | 1848758573018906624 |
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| author | Li, Jun Law, S. |
| author_facet | Li, Jun Law, S. |
| author_sort | Li, Jun |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper proposes a substructural damage identification approach without the information of responses and forces at interface degrees-of-freedom. The proposed algorithm is based on a dynamic response reconstruction technique using the unit impulse response function in the wavelet domain. The relationship between two sets of time-domain response vectors from a target substructure is formulated. Only the finite element model of the intact target substructure and measured acceleration responses from the damaged substructure are required for the identification. Numerical studies on a three-dimensional box-section girder are conducted to investigate the accuracy and effectiveness of the proposed method of substructural damage identification. The simulated damage can be identified effectively even with 10% noise in the measured data. |
| first_indexed | 2025-11-14T09:46:08Z |
| format | Conference Paper |
| id | curtin-20.500.11937-50940 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:46:08Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-509402017-08-08T03:37:29Z Damage identification in a substructure of a box-section girder Li, Jun Law, S. This paper proposes a substructural damage identification approach without the information of responses and forces at interface degrees-of-freedom. The proposed algorithm is based on a dynamic response reconstruction technique using the unit impulse response function in the wavelet domain. The relationship between two sets of time-domain response vectors from a target substructure is formulated. Only the finite element model of the intact target substructure and measured acceleration responses from the damaged substructure are required for the identification. Numerical studies on a three-dimensional box-section girder are conducted to investigate the accuracy and effectiveness of the proposed method of substructural damage identification. The simulated damage can be identified effectively even with 10% noise in the measured data. 2011 Conference Paper http://hdl.handle.net/20.500.11937/50940 restricted |
| spellingShingle | Li, Jun Law, S. Damage identification in a substructure of a box-section girder |
| title | Damage identification in a substructure of a box-section girder |
| title_full | Damage identification in a substructure of a box-section girder |
| title_fullStr | Damage identification in a substructure of a box-section girder |
| title_full_unstemmed | Damage identification in a substructure of a box-section girder |
| title_short | Damage identification in a substructure of a box-section girder |
| title_sort | damage identification in a substructure of a box-section girder |
| url | http://hdl.handle.net/20.500.11937/50940 |