Damage Detection and Quantification Using Transmissibility Coherence Analysis
A new transmissibility-based damage detection and quantification approach is proposed. Based on the operational modal analysis, the transmissibility is extracted from system responses and transmissibility coherence is defined and analyzed. Afterwards, a sensitive-damage indicator is defined in order...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/290714 |
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| _version_ | 1832561207454728192 |
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| author | Yun-Lai Zhou E. Figueiredo N. Maia R. Perera |
| author_facet | Yun-Lai Zhou E. Figueiredo N. Maia R. Perera |
| author_sort | Yun-Lai Zhou |
| collection | DOAJ |
| description | A new transmissibility-based damage detection and quantification approach is proposed. Based on the operational modal analysis, the transmissibility is extracted from system responses and transmissibility coherence is defined and analyzed. Afterwards, a sensitive-damage indicator is defined in order to detect and identify the severity of damage and compared with an indicator developed by other authors. The proposed approach is validated on data from a physics-based numerical model as well as experimental data from a three-story aluminum frame structure. For both numerical simulation and experiment the results of the new indicator reveal a better performance than coherence measure proposed in Rizos et al., 2008, Rizos et al., 2002, Fassois and Sakellariou, 2007, especially when nonlinearity occurs, which might be further used in real engineering. The main contribution of this study is the construction of the relation between transmissibility coherence and frequency response function coherence and the construction of an effective indicator based on the transmissibility modal assurance criteria for damage (especially for minor nonlinearity) detection as well as quantification. |
| format | Article |
| id | doaj-art-2c61997dda724feba1dade2f96725fe6 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2c61997dda724feba1dade2f96725fe62025-02-03T01:25:38ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/290714290714Damage Detection and Quantification Using Transmissibility Coherence AnalysisYun-Lai Zhou0E. Figueiredo1N. Maia2R. Perera3Department of Mechanical Engineering, Technical University of Madrid, Jose Gutierrez Abascal 2, 28006 Madrid, SpainFaculdade de Engenharia da Universidade Lusófona, Campo Grande 376, 1749-024 Lisbon, PortugalLAETA, IDMEC, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001 Lisbon, PortugalDepartment of Mechanical Engineering, Technical University of Madrid, Jose Gutierrez Abascal 2, 28006 Madrid, SpainA new transmissibility-based damage detection and quantification approach is proposed. Based on the operational modal analysis, the transmissibility is extracted from system responses and transmissibility coherence is defined and analyzed. Afterwards, a sensitive-damage indicator is defined in order to detect and identify the severity of damage and compared with an indicator developed by other authors. The proposed approach is validated on data from a physics-based numerical model as well as experimental data from a three-story aluminum frame structure. For both numerical simulation and experiment the results of the new indicator reveal a better performance than coherence measure proposed in Rizos et al., 2008, Rizos et al., 2002, Fassois and Sakellariou, 2007, especially when nonlinearity occurs, which might be further used in real engineering. The main contribution of this study is the construction of the relation between transmissibility coherence and frequency response function coherence and the construction of an effective indicator based on the transmissibility modal assurance criteria for damage (especially for minor nonlinearity) detection as well as quantification.http://dx.doi.org/10.1155/2015/290714 |
| spellingShingle | Yun-Lai Zhou E. Figueiredo N. Maia R. Perera Damage Detection and Quantification Using Transmissibility Coherence Analysis Shock and Vibration |
| title | Damage Detection and Quantification Using Transmissibility Coherence Analysis |
| title_full | Damage Detection and Quantification Using Transmissibility Coherence Analysis |
| title_fullStr | Damage Detection and Quantification Using Transmissibility Coherence Analysis |
| title_full_unstemmed | Damage Detection and Quantification Using Transmissibility Coherence Analysis |
| title_short | Damage Detection and Quantification Using Transmissibility Coherence Analysis |
| title_sort | damage detection and quantification using transmissibility coherence analysis |
| url | http://dx.doi.org/10.1155/2015/290714 |
| work_keys_str_mv | AT yunlaizhou damagedetectionandquantificationusingtransmissibilitycoherenceanalysis AT efigueiredo damagedetectionandquantificationusingtransmissibilitycoherenceanalysis AT nmaia damagedetectionandquantificationusingtransmissibilitycoherenceanalysis AT rperera damagedetectionandquantificationusingtransmissibilitycoherenceanalysis |