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Effect of rail corrugation on vertical dynamics of railway vehicle coupled with a track 被引量:11

Effect of rail corrugation on vertical dynamics of railway vehicle coupled with a track
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摘要 The effect of rail corrugation on the vertical dynamics of railway vehicle coupled with a curved track is investigated in detail with a numerical method when a wheelset is steadily curving. In the calculation of rail corrugation we consider the combination of Kalkers rolling contact theory modified, a model of material loss on rail running surface, and a dynamics model of railway vehicle coupled with a curved track. In the establishment of the dynamic model, for simplicity, one fourth of the freight car without lateral motions, namely a wheelset and the equivalent one fourth freight car body above it, is considered. The Euler beam is used to model the rails and the track structure under the rails is replaced with equivalent springs, dampers and mass bodies. The numerical results show the great influence of the rail corrugation on the vibration of the parts of the vehicle and the track, and the some characters of rail corrugation in development. The effect of rail corrugation on the vertical dynamics of railway vehicle coupled with a curved track is investigated in detail with a numerical method when a wheelset is steadily curving. In the calculation of rail corrugation we consider the combination of Kalkers rolling contact theory modified, a model of material loss on rail running surface, and a dynamics model of railway vehicle coupled with a curved track. In the establishment of the dynamic model, for simplicity, one fourth of the freight car without lateral motions, namely a wheelset and the equivalent one fourth freight car body above it, is considered. The Euler beam is used to model the rails and the track structure under the rails is replaced with equivalent springs, dampers and mass bodies. The numerical results show the great influence of the rail corrugation on the vibration of the parts of the vehicle and the track, and the some characters of rail corrugation in development.
出处 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2005年第1期95-102,共8页 力学学报(英文版)
基金 The project supported by the National Natural Science Foundation of China(59935100) the Foundation of Ph.D Student Education of China(20020613001) the Foundation of the Author of National Excellent Doctoral Dissertation of China(2000048,2002048)
关键词 rail corrugation TRACK VIBRATION rolling contact frictional work vehicle dynamics rail corrugation track vibration rolling contact frictional work vehicle dynamics
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