| Advancing to our country's railway route,high-speed development stage,train running speed,speed and total loading,constantly increasing,more than vehicle wear,exhaustion and exhaustion problems.Trains traveling time and time suitability safety sum safety safety.Yes Yes When the train is running,all possible causes are non-constant non-uniform external drought,and this society is a major influence.A small external effect can be applied to the vehicle...Factors and texts in this column Car-wheel-car-wear-abrasion-related issues Exhibition analysis Analysis and discussion,Main research content:(1)Analysis is completed from the history of the development of the automobile group to the pre-existing history of the development of the vehicle group,the results of domestic and foreign wear and tear,the results of domestic and foreign research,and the current state of research related to the completion of the statement.(2)According to the structure and parameters of CRH380B EMUs,establish the dynamic model of the EMU system,and at the same time establish the line model based on the measured data to prepare for the subsequent study of vehicle dynamic performance and the impact of different conditions on wheel wear.(3)Reason for analysis and comparison Carter Optimal method for submitting wheel-to-wheel contact contact theory,selection calculation,wheel-wheel-to-wheel contact and sliding force..(4)Contrasting discussion Abrasion wear model and Archard wear model.Wear and wear method for car-rolled wheels,comparison with measured wear conditions,wear model for wear calculation.(5)Use UM software to simulate and predict the wheel wear,compare its reliability with the measured data,and analyze the dynamic performance,study the wheel wear under the influence of different external conditions,and analyze the wear rules and effects.(6)Summarize the main research contents and achievements,and prospect the further research on wheel wear of high-speed trains. |
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