Kinetic energy uphill performance of heavy-haul train based on multi-particle model

WANG Kai-yun; HUANG Chao

doi:10.19818/j.cnki.1671-1637.2015.05.007

Volume 15 Issue 5

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WANG Kai-yun, HUANG Chao. Kinetic energy uphill performance of heavy-haul train based on multi-particle model[J]. Journal of Traffic and Transportation Engineering, 2015, 15(5): 50-56. doi: 10.19818/j.cnki.1671-1637.2015.05.007

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WANG Kai-yun, HUANG Chao. Kinetic energy uphill performance of heavy-haul train based on multi-particle model[J]. Journal of Traffic and Transportation Engineering, 2015, 15(5): 50-56. doi: 10.19818/j.cnki.1671-1637.2015.05.007

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Kinetic energy uphill performance of heavy-haul train based on multi-particle model

doi: 10.19818/j.cnki.1671-1637.2015.05.007

State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

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Author Bio:
WANG Kai-yun(1974-), male, researcher, PhD, +86-28-87600773, kywang@home.swjtu.edu.cn
Received Date: 2015-06-20
Publish Date: 2015-10-25

Abstract

Abstract

Train multi-particle longitudinal dynamics model was used to analyze the influences of train initial speed, train marshalling, slope length and slope gradient on the kinetic energy uphill performance of train.A comparison between multi-particle model and single particle model was made.A specific example was given to illustrate the difference of the maximum tractive tonnages between the two models in the kinetic energy uphill.Analysis result indicates that the higher the uphill initial speed is, the better the uphill performance is.The uphill performance declines with the increases of train marshalling, slope length and slope gradient.The difference of train uphill lowest speed of two models increases with the decrease of train uphill initial speed.The difference of the uphill lowest speeds of two models is 5.29km·h^-1 when the initial speed is 60km·h^-1.The calculation result of single particle model is more and more conservative with the increases of train marshalling, slope length and slope gradient.Train maximum tractive tonnages are 8 250 t and 8 750 t based on single particle model and multi-particle model respectively, in which the latter is 6.1% higher than the former.It is suggested that the multi-particle longitudinal dynamics model can be adopted to calculate train maximum tractive tonnage in kinetic energy uphill.
- train longitudinal dynamics,
- multi-particle model,
- single particle model,
- uphill performance,
- tractive tonnage

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Kinetic energy uphill performance of heavy-haul train based on multi-particle model

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