Effect of Primary Positioning Stiffness on Dynamics Performance of Rail Grinding Train
Li Guo · 2012
Primary positioning mode and stiffness have larger effect on dynamics performance of railway vehicle.During operation,the rail grinding train was in poor working conditions.Research shows this is due to the primary positioning mode of polishing car.Because polishing car use guide frame of fiction positioning,in order to improve it's dynamics performance,this paper presents to change the primary positioning mode of polishing car into resilient positioning,and use the dynamics model of rail grinding train to optimize the stiffness of the resilient positioning of the polishing car.The result shows that using resilient positioning mode can improve the dynamics performance of rail grinding train,and solve the problem of poor safety performance of polishing car efficiently.