New Method of Dynamical Reanalysis for Large Modification of Structural Topology Based on Reduced Model
The paper presents a new improved method for structural dynamic reanalysis with large change in structure topology possessing added degrees of freedom (DOF). The method，which is based on twice reduced model of original and topological structures, combines independent mass orthogonality and Rayleigh-Ritz analysis. Two numerical examples were used to show that the presented method can provide efficient and high quality approximation result for eigenvalues reanalysis when large modifications of the structural topology are made.
J. J. He and J. S. Jiang, "New Method of Dynamical Reanalysis for Large Modification of Structural Topology Based on Reduced Model", Advanced Materials Research, Vols. 443-444, pp. 628-631, 2012