Vehicle-track-bridge Interaction Method by Vector Form Intrinsic Finite Element Method

摘要

This paper presents the analysis of the three dimensional vehicle -track-bridge interaction (VTBI) behaviours by a new r computational method called the Vector Form Intrinsic Finite Element (VFIFE) method that is capable to do the nonlinear large r deformation analysis of structures. The particle dynamics algorithm within the VFIFE method does not require solving any r VTBI parameters iteratively. Hence,it is capable to investigate versatile of nonlinear dynamic problems like the mo -tion r behaviours of carriages derailment failure with the large deformation and the dynamics of the ve -hicle-track-bridge system r due to earthquake excitations. Numerical examples demonstrate that the analysis method proposed in this study can effectively r and accurately analyze the nonlinear , dynamic behaviours of the vehicle -track-bridge system.