Strength Test and Modal Analysis for a Standardized High-Speed EMU Motor Bogie Frame

Bogie frame is the critical components of high-speed electric multiple units (EMU).In this article , the static strength test and fatigue strength test of a standardized high-speed EMU motor bogie frame were conducted.According to the strength test results, the static strength and fatigue strength of the frame was checked referring to UIC615-4 and Goodman sketch for welding materials.The modal analysis of the frame to evaluate the dynamical behavior of the frame in order to meet the dynamical design requirements .Analyzed with the simulation results, the static strength and fatigue strength of the bogie frame can meet the requirements.The lower self-vibration frequency of the frame is 47.96HZ which can avoid excited frequency of the frame.