Abstract :
Model updating for quadratic eigenvalue problems (QEP s) is proposed by Friswell, Inman and Pilkey (1998), to incorporate the measured model data into the model which only produces the mass and stiffness matrices, that closely match the experimental model data. In this paper, we consider a numerical model for updating QEP s which produces not only the mass and stiffness matrices, but also the damping matrix will be updated. To this end the complete set of eigenpairs will be employed.