• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2026, Vol. 62 ›› Issue (16): 140-153.doi: 10.3901/JME.260627

• 特邀专辑:轨道运载装备动态设计理论与运维技术 • 上一篇    

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3万吨重载组合列车小半径曲线通过安全性分析

陈哲1,2,3, 王龙生1, 邹异民2,3, 曾凡军2,3, 凌亮1, 王开云1   

  1. 1. 西南交通大学轨道交通运载系统全国重点实验室 成都 610031;
    2. 重载快捷大功率电力机车全国重点实验室 株洲 412001;
    3. 中车株洲电力机车有限公司 株洲 412001
  • 收稿日期:2025-09-02 修回日期:2026-02-06 发布日期:2026-10-14
  • 作者简介:陈哲,男,1987年出生,正高级工程师。主要研究方向为重载机车系统动力学。E-mail:13466764283@139.com.;凌亮(通信作者),男,1986年出生,博士,教授,博士研究生导师。主要研究方向为铁路系统动力学与智能运维。E-mail:liangling@swjtu.edu.cn
  • 基金资助:
    国家重点研发计划(2025YFF0524300)和国家自然科学基金(U2268210)资助项目。

Running Safety of 30 000-ton Heavy-haul Trains Passing through Sharp Curves

CHEN Zhe1,2,3, WANG Longsheng1, ZOU Yimin2,3, ZENG Fanjun2,3, LING Liang1, WANG Kaiyun1   

  1. 1. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031;
    2. State Key Laboratory of Heavy-duty and Express High-power Electric Locomotive, Zhuzhou 412001;
    3. CRRC Zhuzhou Locomotive Co., Ltd., Zhuzhou 412001
  • Received:2025-09-02 Revised:2026-02-06 Published:2026-10-14

摘要: 为研究3万吨重载列车小半径曲线通过安全性能,开展3万吨重载列车动力学性能现场测试,建立3万吨重载列车-轨道耦合动力学模型,利用现场测试数据对模型进行了验证。基于动力学仿真分析,系统研究不同编组模式下3万吨重载列车在长大坡道与小半径曲线叠加区段的纵向冲动特性与轮轨动态相互作用安全性能。结果表明:3万吨重载列车通过小半径曲线时轮轨相互作用与安全性指标显著增大;列车编组模式影响长大组合列车内部纵向力传递特性与车钩偏转行为,显著改变轮轨动力作用,是决定列车曲线通过安全性的关键因素。采用四台机车均匀分散牵引模式,可有效降低列车纵向冲击作用力,提升小半径曲线通过安全性能,降低轮轨磨耗。研究结果可为3万吨重载列车编组模式优化与操纵策略制定提供理论依据,提升长大编组列车的运行安全性与稳定性。

关键词: 重载铁路, 3万吨重载列车, 编组模式, 小半径曲线, 运行安全性

Abstract: To investigate the curve negotiation safety performance of 30 000-ton heavy-haul trains on small-radius curves, field tests on the dynamic performance of 30 000-ton heavy-haul trains were conducted, and a coupled dynamics model of the 30 000-ton heavy-haul train-track system was established. The model was validated using field test data. Based on dynamic simulation analysis, a systematic study was carried out to examine the longitudinal impulse characteristics and the impact on wheel-rail dynamic interaction safety performance of 30 000-ton heavy-haul trains under different marshalling modes when operating on sections combining long steep grades and small-radius curves. The results indicate that when a 30 000-ton heavy-haul train negotiates small-radius curves, the wheel-rail interaction and safety indices increase significantly. The train marshalling mode affects the internal longitudinal force transmission characteristics and coupler deflection behavior of long coupled trains, significantly altering the wheel-rail dynamic interaction, which is a key factor determining the curve negotiation safety of the train. Adopting a dispersed traction mode with four locomotives evenly distributed can effectively reduce the longitudinal impact forces within the train, mitigate wheel–rail wear, and enhance the safety performance when negotiating small-radius curves. The research results can provide a theoretical basis for optimizing the marshalling modes and formulating operation strategies for 30 000-ton heavy-haul trains, thereby improving the operational safety and stability of long coupled trains.

Key words: heavy-haul railway, 30 000-ton heavy-haul train, marshalling mode, small radius curve, operation safety

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