Effect of journal arrangement on load-bearing capacity of high-speed train axles

GUO Feng; LIU Jianxin; WU Shengchuan; CAI Jiufeng

doi:10.13890/j.issn.1000-128X.2022.01.001

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Effect of journal arrangement on load-bearing capacity of high-speed train axles

High-speed Railway Column | 更新时间：2024-08-02

- Effect of journal arrangement on load-bearing capacity of high-speed train axles
- Electric drive for locomotives Issue 1, Pages: 1-7(2022)
- 作者机构：
  
  1.西南交通大学牵引动力国家重点实验室，四川成都 610031
  2.西南交通大学机械工程学院，四川成都;610031
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.01.001
  CLC： U292.91⁺4;U260.331⁺.1
- Published：10 January 2022，
  
  Received：18 December 2020，
  
  Revised：29 January 2021，
- 稿件说明：
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GUO Feng, LIU Jianxin, WU Shengchuan, et al. Effect of journal arrangement on load-bearing capacity of high-speed train axles. [J]. Electric drive for locomotives (1):1-7(2022)
DOI：

GUO Feng, LIU Jianxin, WU Shengchuan, et al. Effect of journal arrangement on load-bearing capacity of high-speed train axles. [J]. Electric drive for locomotives (1):1-7(2022) DOI： 10.13890/j.issn.1000-128X.2022.01.001.

摘要

通过建立轴箱内置和外置的高速列车车轴承载理论模型、有限元模型和车辆系统动力学模型，研究轴箱布置方式对车轴受力状态、应力分布和动荷载的影响。结果表明，轴箱内置的高速列车车轴所承受的最大合成弯矩仅为传统轴箱外置车轴的 50%，充分挖掘了轴身的承载潜力，在实现轻量化设计方面有着独特的技术优势。与传统轴箱外置式车轴相比，轴箱内置的方式使得车轴的临界安全截面转移至轴颈两侧的过渡区域。轴箱内置式车轴轮轨垂向力的极限增减动力载荷明显低于传统轴箱外置式车轴，而轮轴横向力的极限增减动力载荷略高于传统轴箱外置式车轴，两者均有利于降低车轴所承受合成弯矩水平。综上得出轴箱内置车轴是一种在高速铁路领域极具应用潜力的新型铁路车轴结构。

Abstract

Theoretical models

finite element models and vehicle system dynamics models of both inside and outside journal high- speed train axles were established for the load-bearing capacity analysis

then the load-bearing states

stress distribution regularities and dynamic loads of these train axles were systematically studied. Result shows that the inside journal axles can achieve higher efficiency and utilization of the axle body

and the maximum combined bending moments are only half of the traditional outside journal axles

therefore

inside journal axles realize a great advantage in the lightweight design; compared with traditional outside journal axles

the critical safety positions of inside journal high-speed train axles transfer to transition positions on both sides of the journal; Compared with traditional outside journal axles

the novel inside journal axles can significantly alleviate the limit value of wheel-rail vertical force

and the limit value of wheel-axle lateral force is slightly higher

both are conductive to reducing the synthetic moments of the axles. In summary

the novel inside journal train axles is identified with a great application prospect for high-speed train vehicles.

关键词

高速动车组内悬挂转向架内轴颈列车车轴临界安全位置动力学性能高速列车仿真高速铁路

Keywords

high-speed EMUsinside suspension bogiesinner journal train axlescritical safety positiondynamic performancehigh-speed trainsimulationhigh-speed railway

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