Correlation analysis between snow-removal characteristics of EMU and topological configuration of obstacle deflector panel
This paper aims to clarify the relationship between the snow-removal characteristics of an EMU mode intended for ex-port to Europe and the geometrical configuration of its obstacle deflector panels,while maintaining a consistent snow-removal cross-sec-tion,and guide the topological configuration design for these panels to ensure their effectiveness under snow loading.A numerical model describing the impact of the EMUs on accumulated snow on tracks was constructed,using the smoothed particle hydrodynamics method.This model was then utilized to analyze snow movement,snow-removal resistance,energy consumption power under various rake and flare angles of the obstacle deflector panels.The results reveal a close relationship between snow movement and the rake and flare an-gles.Adjusting these angles can affect the height of snow movement in the z direction and the speed in the x direction,thereby preventing flying snow from blocking the driver's sight and ensuring the safe operation of the EMUs.The rake angle is found to influence both the magnitude and direction of z-directional snow-removal resistance,despite having little effect on x-directional snow-removal resistance.As the flare angle increases,x-directional snow-removal resistance increases,whereas z-directional snow-removal resistance first increas-es and then decreases.Moreover,the snow-removal energy consumption and power of the EMUs exhibit low correlations with rake an-gles of the obstacle deflector panels and positive correlations with flare angles.Therefore,reducing flare angles can effectively decrease snow-removal energy consumption and power,leading to load reduction and energy conservation.
万方数据
维普
