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Simultaneous identification of damage and input dynamic force on the structure for structural health monitoring
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Simultaneous identification of damage and input dynamic force on the structure for structural health monitoring
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Journal Article
Simultaneous identification of damage and input dynamic force on the structure for structural health monitoring
2017
Overview
In this paper, we present an approach for simultaneous identification of the system parameters and the input dynamic force time history. The inverse problem associated with the system identification is formulated as an optimization problem and is solved using a newly developed dynamic hybrid adaptive firefly algorithm (DHAFA). A modified version of Tikhonov regularization is employed while solving the inverse problem associated with the force identification in order to improve the quality of the solution. Numerical simulation studies have been carried out by solving three distinct numerical examples. Studies presented in this paper indicate that the proposed algorithm is effective in identifying the system parameters as well as the input dynamic force simultaneously and can be effectively used for structural health monitoring purposes. Convergence studies presented in this paper on the newly developed dynamic hybrid firefly algorithm indicate that the proposed algorithm has better convergence characteristics and can be effectively employed for solving complex nonlinear optimization problems associated with system identification.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
