A Method for Updating Damping of Analytical Model of Substructure Based on Frequency Response

Abstract

The identification of model damping is a key for response analysis. A method is presented for updating damping of the computational model of substructure based on frequency response experiment. The proposed method directly identifies mass, stiffness and damping matrices by using the substructure error coefficient and frequency response experiment, then computational model damping is updated, finally the effectiveness of the method with simulated data gauging is studied in this paper.