Harmonic response calculation of viscoelastic structures using classical normal modes: An iterative method
Only classical normal modes are used in the proposed iterative method. The method only needs to iteratively solve a diagonal dynamic equation. The convergence condition of the iterative procedure is given. The influence of higher modes is considered by using a mode correction technique. The method is illustrated in terms of different types of viscoelastic materials.
viscoelasticity frequency response analysis harmonic analysis frequency response function mode superposition method modal truncation problem