Damage detection based on pattern-matching method of response signal

초록

Using response data as the feature to extract the damage, this study proposes an analytical method to detect damage by matching the response pattern between a damage-expected beam system and the database. Response pattern database is composed of the response variation before and after the damage, prescribed by various damage scenarios. Pattern-matching is evaluated by the correlation coefficients between two data sets and the damage corresponds to high correlation coefficient. Response variations at a full set of DOFs are estimated by the expansion of a few measured response data. Numerical applications illustrate the validity and applicability of the proposed method.

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