Operational modal filter and its applications |
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Authors: | Krzysztof Mendrok Piotr Kurowski |
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Institution: | 1. Department of Robotics and Mechatronics, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059, Kraków, Poland
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Abstract: | In the paper, the procedure for the estimation of modal filter coefficients from output-only data is presented. The basic concept of the procedure consists in frequency response functions synthesis based on the knowledge of an operational modal model. A method of operational mode shapes scaling is described. The method is then compared with the classical modal filter and with modal filtration of responses spectra, which is sometimes used as a solution for modal filtration based on the output-only data. Each solution is applied to load identification and damage detection. The study shows the method verification on data obtained from laboratory experiment. |
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