An experimental evaluation of the reliability of a damage localization algorithm based on FRF interpolation
| Autor: | Maria Pina Limongelli, Giorgio Busca |
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| Rok vydání: | 2015 |
| Předmět: |
Risk
Damage localization Structural health monitoring Experimental data Curvature Impact tests Displacement (vector) Data set Frequency response functions Feature (computer vision) Reliability and Quality Interpolation damage index Civil and Structural Engineering Safety Risk Reliability and Quality Safety Algorithm Reliability (statistics) Mathematics Interpolation |
| Zdroj: | Journal of Civil Structural Health Monitoring. 5:427-439 |
| ISSN: | 2190-5479 2190-5452 |
| DOI: | 10.1007/s13349-015-0126-7 |
| Popis: | In this paper two methods for damage localization, the IDDM (Interpolation Damage Detecting Method), and the Modal Shape Curvature Method (MSCM) are applied to the same experimental case of a cantilever aluminum beam for which several different damage scenarios have been artificially reproduced in laboratory. IDDM is a new method recently proposed in literature which is on the definition of a damage-sensitive feature in terms of the accuracy of a spline function interpolating the Operational Displacement Shapes of the structure. This paper will present a comparison between the two methods on experimental data from a laboratory bench structure. Results show that, due to the small changes of the damage features induced by damage, both methods require a high-quality data set to provide a reliable damage localization even if the number of false alarms is slightly lower if the IDDM is applied. |
| Databáze: | OpenAIRE |
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