Dynamic Response and Flutter Prediction of Structures with Unknown System Parameters using Experimental Modal Parameters

摘要

This paper presents an approach for prediction of dynamic modal transient response and flutter characteristics of structures with unknown system parameters, such as stiffness and mass, using experimental modal parameters. Correlation of the results with a finite element model created using the actual material properties of the structure was studied. Close agreement was observed for the computed transient responses and flutter velocities by the proposed method, using experimental modal parameters, for which material properties are not a pre-requisite.