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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Mendrok, K., Kurowski, P. Operational modal filter and its applications. Arch Appl Mech 83, 509–519 (2013). https://doi.org/10.1007/s00419-012-0700-y
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DOI: https://doi.org/10.1007/s00419-012-0700-y