Structural model updating using sensitivity of wavelet transform coefficients of incomplete structural response
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Abstract
In this paper, a structural model updating technique is presented based on the wavelet analysis of the structural responses. The sensitivity of the wavelet coefficients of the dynamic response with respect to the structural parameters is evaluated using the incomplete measured responses. To achieve an accurate sensitivity equation, measured data are incorporated in mathematical formulation. The least-square algorithm with the appropriate weighting algorithm is used for solving the over-determined system of equations. The proposed method is applied numerically to the simulated data of a 2D truss model and a 3D frame model. The results show the great promise of the wavelet transform via the proposed sensitivity-based approach for structural model updating and damage detection.
Keywords
Model updating Damage detection Sensitivity equation Wavelet transform OptimizationNotes
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
Supplementary material
References
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