Damage identification of a segment of a box-section girder subject to a moving Load
This paper proposes a substructural damage identification approach 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 the substructure subject to a moving load is...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/4410 |
| _version_ | 1848744508494184448 |
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| author | Law, S. Li, Jun |
| author_facet | Law, S. Li, Jun |
| author_sort | Law, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper proposes a substructural damage identification approach 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 the substructure subject to a moving load is formulated. The damage in a segment of the structure is identified from the measured dynamic responses without information of the moving load using the response sensitivity-based method. The adaptive Tikhonov regularization technique is adopted to improve the identification results when noise effect is included in the measurements. A three-dimensional box-section girder subject to a single moving force is taken as an example to validate the proposed method of substructural damage identification with good results. |
| first_indexed | 2025-11-14T06:02:35Z |
| format | Conference Paper |
| id | curtin-20.500.11937-4410 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:02:35Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-44102017-04-20T05:55:22Z Damage identification of a segment of a box-section girder subject to a moving Load Law, S. Li, Jun This paper proposes a substructural damage identification approach 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 the substructure subject to a moving load is formulated. The damage in a segment of the structure is identified from the measured dynamic responses without information of the moving load using the response sensitivity-based method. The adaptive Tikhonov regularization technique is adopted to improve the identification results when noise effect is included in the measurements. A three-dimensional box-section girder subject to a single moving force is taken as an example to validate the proposed method of substructural damage identification with good results. 2011 Conference Paper http://hdl.handle.net/20.500.11937/4410 restricted |
| spellingShingle | Law, S. Li, Jun Damage identification of a segment of a box-section girder subject to a moving Load |
| title | Damage identification of a segment of a box-section girder subject to a moving Load |
| title_full | Damage identification of a segment of a box-section girder subject to a moving Load |
| title_fullStr | Damage identification of a segment of a box-section girder subject to a moving Load |
| title_full_unstemmed | Damage identification of a segment of a box-section girder subject to a moving Load |
| title_short | Damage identification of a segment of a box-section girder subject to a moving Load |
| title_sort | damage identification of a segment of a box-section girder subject to a moving load |
| url | http://hdl.handle.net/20.500.11937/4410 |