Substructural interface force identification with limited vibration measurements
This paper presents a dynamic substructural interface force identification approach with limited vibration measurements from the target substructure. The substructure is considered to be subjected to both the external excitation forces at some specific degrees-of-freedom (DOFs) within the substructu...
| Main Authors: | , |
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| Format: | Journal Article |
| Published: |
Springer
2016
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| Online Access: | http://purl.org/au-research/grants/arc/DE140101741 http://hdl.handle.net/20.500.11937/38700 |
| _version_ | 1848755391529222144 |
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| author | Li, Jun Hao, H. |
| author_facet | Li, Jun Hao, H. |
| author_sort | Li, Jun |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents a dynamic substructural interface force identification approach with limited vibration measurements from the target substructure. The substructure is considered to be subjected to both the external excitation forces at some specific degrees-of-freedom (DOFs) within the substructure and the interface forces at interface DOFs. The interface force time histories are represented as orthogonal polynomials and their discrete Fourier transform is expressed in the matrix multiplication form which transforms the time domain interface forces into their Fourier transforms in the frequency domain. A frequency-time domain method is used to formulate the identification equation based on the relationship between two sets of response vectors in a substructure. The coefficients of orthogonal functions are identified with the Tikhonov regularization technique. Numerical studies on a seven-storey plane frame structure are conducted to investigate the accuracy and efficiency of the proposed substructure interface force identification approach. |
| first_indexed | 2025-11-14T08:55:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-38700 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:55:34Z |
| publishDate | 2016 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-387002022-09-06T04:48:15Z Substructural interface force identification with limited vibration measurements Li, Jun Hao, H. This paper presents a dynamic substructural interface force identification approach with limited vibration measurements from the target substructure. The substructure is considered to be subjected to both the external excitation forces at some specific degrees-of-freedom (DOFs) within the substructure and the interface forces at interface DOFs. The interface force time histories are represented as orthogonal polynomials and their discrete Fourier transform is expressed in the matrix multiplication form which transforms the time domain interface forces into their Fourier transforms in the frequency domain. A frequency-time domain method is used to formulate the identification equation based on the relationship between two sets of response vectors in a substructure. The coefficients of orthogonal functions are identified with the Tikhonov regularization technique. Numerical studies on a seven-storey plane frame structure are conducted to investigate the accuracy and efficiency of the proposed substructure interface force identification approach. 2016 Journal Article http://hdl.handle.net/20.500.11937/38700 10.1007/s13349-016-0157-8 http://purl.org/au-research/grants/arc/DE140101741 Springer restricted |
| spellingShingle | Li, Jun Hao, H. Substructural interface force identification with limited vibration measurements |
| title | Substructural interface force identification with limited vibration measurements |
| title_full | Substructural interface force identification with limited vibration measurements |
| title_fullStr | Substructural interface force identification with limited vibration measurements |
| title_full_unstemmed | Substructural interface force identification with limited vibration measurements |
| title_short | Substructural interface force identification with limited vibration measurements |
| title_sort | substructural interface force identification with limited vibration measurements |
| url | http://purl.org/au-research/grants/arc/DE140101741 http://hdl.handle.net/20.500.11937/38700 |