A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges
This paper provides a comparative study on four different sensitivity-based damage detection methods for bridges. The methods investigated in this study are approximation approach, semianalytical discrete approach, and analytical discrete approach, which includes direct differential and adjoint vari...
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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/10.1155/2015/120630 |
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| author | Akbar Mirzaee Reza Abbasnia Mohsenali Shayanfar |
| author_facet | Akbar Mirzaee Reza Abbasnia Mohsenali Shayanfar |
| author_sort | Akbar Mirzaee |
| collection | DOAJ |
| description | This paper provides a comparative study on four different sensitivity-based damage detection methods for bridges. The methods investigated in this study are approximation approach, semianalytical discrete approach, and analytical discrete approach, which includes direct differential and adjoint variable methods. These sensitivity-based methods utilize finite element model updating procedure and allow a wide choice of physically meaningful parameters leading to vast range of applications in damage detection. The most important difficulty in these methods is calculation of sensitivity matrix. Calculation of this massive matrix is repeated in each iteration and has a significant effect on the efficiency of method. In this study, the acceleration measurements are simulated from the solution to the forward problem using finite element method under moving load with various speeds, along with the addition of artificially produced measurement noise. Various damaged structures with different damage patterns including single, multiple, and random damage are considered and efficiency of four sensitivity methods is compared. Moreover, various possible sources of error such as the effects of measurement noise as well as initial assumption error in stability of the methods are also discussed. |
| format | Article |
| id | doaj-art-adca6d29ff234a6085459d3fc75a2d3f |
| 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-adca6d29ff234a6085459d3fc75a2d3f2025-02-03T05:44:55ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/120630120630A Comparative Study on Sensitivity-Based Damage Detection Methods in BridgesAkbar Mirzaee0Reza Abbasnia1Mohsenali Shayanfar2Department of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 16846 13114, IranDepartment of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 16846 13114, IranDepartment of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 16846 13114, IranThis paper provides a comparative study on four different sensitivity-based damage detection methods for bridges. The methods investigated in this study are approximation approach, semianalytical discrete approach, and analytical discrete approach, which includes direct differential and adjoint variable methods. These sensitivity-based methods utilize finite element model updating procedure and allow a wide choice of physically meaningful parameters leading to vast range of applications in damage detection. The most important difficulty in these methods is calculation of sensitivity matrix. Calculation of this massive matrix is repeated in each iteration and has a significant effect on the efficiency of method. In this study, the acceleration measurements are simulated from the solution to the forward problem using finite element method under moving load with various speeds, along with the addition of artificially produced measurement noise. Various damaged structures with different damage patterns including single, multiple, and random damage are considered and efficiency of four sensitivity methods is compared. Moreover, various possible sources of error such as the effects of measurement noise as well as initial assumption error in stability of the methods are also discussed.http://dx.doi.org/10.1155/2015/120630 |
| spellingShingle | Akbar Mirzaee Reza Abbasnia Mohsenali Shayanfar A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges Shock and Vibration |
| title | A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges |
| title_full | A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges |
| title_fullStr | A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges |
| title_full_unstemmed | A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges |
| title_short | A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges |
| title_sort | comparative study on sensitivity based damage detection methods in bridges |
| url | http://dx.doi.org/10.1155/2015/120630 |
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