更大牵引质量重载列车动力学建模与仿真分析

打开文本图片集

中图分类号：U260 文献标志码：A文章编号：1006-0316（2025）07-0056-08

Abstract ∵ In order to study the dynamic response of heavy-haul trains with larger traction tonnage，a 30，000-ton heavy-haul train-track coupled dynamics analysis model is established based on longitudinal dynamics theory， which takes into account locomotive traction/ braking characteristics，buffer performance and railway line profilein detail.Based on the model，the dynamic response of the 30，oo-ton heavy haul-train running on the long downhillramp，"V" ramp and "A" ramp is further analyzed，and the dynamic response of the 20，000-ton heavy haul train on the same line condition is compared.The results show that the model can be used to evaluate the dynamic performance of the30，0o-ton heavy-haul train under diffrent lines and operation conditions. Compared with the2O，Ooo-ton heavy-haul train，the largestcoupler forceand largest longitudinal acceleration of the 30，00o-ton heavy haul trainaresmallerunder the three typical lineconditions.Thisstudycan provide theoretical supportfortheofficialoperationof30，Ooo-tonheavy-haul train.

ey words ∵ heavy-haul railway ： 30，ooo-ton heavy-haul train ： longitudinal dynamics theory ; coupler force

重载铁路能够实现大宗货物的大规模、高效率运输，相比起公路运输等其他方式，单位运输成本更低。（剩余6903字）