Explicit Dynamics Simulation of High-Speed Railway Bearing Based On ANSYS/LS-DYNA

摘要

A solid model of a high-speed train axle box bearing was built by using 3D modeling software.On the platform of ANSYS/LS-DYNA,the combined dynamic and finite element analysis method is used to apply the combined radial and axial loads to the high-speed rail bearing.In order to demonstrate the dynamic contact characteristics of the bearing during operation,two operating conditions were designed.One is running at a uniform speed in a straight line,the other is running at an assumed speed with a minimum turning radius.The results show that the stress distribution,velocity and acceleration of bearing components under two different working conditions are obviously different.The research can provide reference for the design,selection and optimization of domestic high-speed rail bearings.