DQEM ANALYSIS OF IN-PLANE VIBRATION OF CURVED BEAM STRUCTURES

摘要

The development of differential quadrature element method (DQEM) in-plane vibration analysis model of arbitrarily curved nonprismatic beam structures was carried out. The DQEM uses the extended differential quadrature (EDQ) to discretize the differential eigenvalue equation defined on each element, the transition conditions defined on the inter-element boundary of two adjacent elements and the boundary conditions of the beam. Numerical results solved by the developed numerical algorithm are presented. The convergence of the developed DQEM analysis model is efficient. This numerical algorithm can be used to analyze the related offshore structures.