Numerical Analysis for Structural Dynamic Responses using aHighly Accurate Differential Quadrature Method

摘要

In this paper, a kind of unconditionally stable higher-order accurate time step integrationalgorithms based on the DQM for second-order initial value problems has been applied. The dynamicresponses have been computed numerically for a double-degree-of-freedom systems and a beam forced bya changed load. The results show that the algorithm has the capability of producing highly accuratesolutions with minimal time consumption, and the energy is perfectly conserved for dynamic responseanalysis by the algorithm.