Computational Comparison of Vehicle–Track Coupled Dynamics and Vehicle System Dynamics

Abstract

It is of prime importance to ascertain the specific differences in the computational results between the vehicle–track coupled dynamics model (hereinafter referred to as the “coupled model”) and the traditional vehicle system dynamics model (hereinafter referred to as the “traditional model”) for further understanding the necessity of research on the theory of vehicle–track coupled dynamics. It can also provide the basis for defining the application scopes of both the traditional model and the coupled model. This chapter will analyze and compare the computational results of the two models from three aspects: railway vehicle nonlinear hunting stability, ride comfort, and curving performance.