High-frequency wheel track excitation source rapid calculation method and system based on three-dimensional implicit-explicit rolling contact finite element model

Abstract

The invention discloses a high-frequency wheel-rail excitation source rapid calculation method and system based on a three-dimensional implicit-explicit rolling contact finite element model, and the method comprises the steps: building a wheel-rail three-dimensional rolling contact finite element model with two-dimensional contact and three-dimensional vibration coupled through ANSYS / LS-DYNA; the analysis of the dynamic characteristics of the high-speed railway wheel-rail interaction is realized by utilizing a wheel-rail three-dimensional rolling contact finite element model. The invention provides a three-dimensional wheel rail rolling contact finite element model (EWRRFEM) based on two-dimensional contact and three-dimensional vibration coupling. The model aims to analyze the dynamic characteristics of the wheel set and the track in the high-speed railway. According to the modeling method, the calculation efficiency is remarkably improved while the advantages and precision of the three-dimensional rolling contact finite element model are kept.

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