Damage Detection and Localization from Dense Network of Strain Sensors
Structural health monitoring of large systems is a complex engineering task due to important practical issues. When dealing with large structures, damage diagnosis, localization, and prognosis necessitate a large number of sensors, which is a nontrivial task due to the lack of scalability of traditi...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/2562949 |
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| _version_ | 1832545940665270272 |
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| author | Simon Laflamme Liang Cao Eleni Chatzi Filippo Ubertini |
| author_facet | Simon Laflamme Liang Cao Eleni Chatzi Filippo Ubertini |
| author_sort | Simon Laflamme |
| collection | DOAJ |
| description | Structural health monitoring of large systems is a complex engineering task due to important practical issues. When dealing with large structures, damage diagnosis, localization, and prognosis necessitate a large number of sensors, which is a nontrivial task due to the lack of scalability of traditional sensing technologies. In order to address this challenge, the authors have recently proposed a novel sensing solution consisting of a low-cost soft elastomeric capacitor that transduces surface strains into measurable changes in capacitance. This paper demonstrates the potential of this technology for damage detection, localization, and prognosis when utilized in dense network configurations over large surfaces. A wind turbine blade is adopted as a case study, and numerical simulations demonstrate the effectiveness of a data-driven algorithm relying on distributed strain data in evidencing the presence and location of damage, and sequentially ranking its severity. Numerical results further show that the soft elastomeric capacitor may outperform traditional strain sensors in damage identification as it provides additive strain measurements without any preferential direction. Finally, simulation with reconstruction of measurements from missing or malfunctioning sensors using the concepts of virtual sensors and Kriging demonstrates the robustness of the proposed condition assessment methodology for sparser or malfunctioning grids. |
| format | Article |
| id | doaj-art-a83724a0e4784797b54a8e348dbdacfc |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-a83724a0e4784797b54a8e348dbdacfc2025-02-03T07:24:17ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/25629492562949Damage Detection and Localization from Dense Network of Strain SensorsSimon Laflamme0Liang Cao1Eleni Chatzi2Filippo Ubertini3Department of Civil, Construction, and Environmental Engineering, Iowa State University, Ames, IA 50011, USADepartment of Civil, Construction, and Environmental Engineering, Iowa State University, Ames, IA 50011, USAInstitute of Structural Engineering, Department of Civil, Environmental & Geomatic Engineering, ETH Zürich, 8093 Zürich, SwitzerlandDepartment of Civil and Environmental Engineering, University of Perugia, 06125 Perugia, ItalyStructural health monitoring of large systems is a complex engineering task due to important practical issues. When dealing with large structures, damage diagnosis, localization, and prognosis necessitate a large number of sensors, which is a nontrivial task due to the lack of scalability of traditional sensing technologies. In order to address this challenge, the authors have recently proposed a novel sensing solution consisting of a low-cost soft elastomeric capacitor that transduces surface strains into measurable changes in capacitance. This paper demonstrates the potential of this technology for damage detection, localization, and prognosis when utilized in dense network configurations over large surfaces. A wind turbine blade is adopted as a case study, and numerical simulations demonstrate the effectiveness of a data-driven algorithm relying on distributed strain data in evidencing the presence and location of damage, and sequentially ranking its severity. Numerical results further show that the soft elastomeric capacitor may outperform traditional strain sensors in damage identification as it provides additive strain measurements without any preferential direction. Finally, simulation with reconstruction of measurements from missing or malfunctioning sensors using the concepts of virtual sensors and Kriging demonstrates the robustness of the proposed condition assessment methodology for sparser or malfunctioning grids.http://dx.doi.org/10.1155/2016/2562949 |
| spellingShingle | Simon Laflamme Liang Cao Eleni Chatzi Filippo Ubertini Damage Detection and Localization from Dense Network of Strain Sensors Shock and Vibration |
| title | Damage Detection and Localization from Dense Network of Strain Sensors |
| title_full | Damage Detection and Localization from Dense Network of Strain Sensors |
| title_fullStr | Damage Detection and Localization from Dense Network of Strain Sensors |
| title_full_unstemmed | Damage Detection and Localization from Dense Network of Strain Sensors |
| title_short | Damage Detection and Localization from Dense Network of Strain Sensors |
| title_sort | damage detection and localization from dense network of strain sensors |
| url | http://dx.doi.org/10.1155/2016/2562949 |
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