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青藏线双源动车组黏着适应性研究

王波 罗世辉 王晨 曲天威 马卫华 雷成

王波, 罗世辉, 王晨, 曲天威, 马卫华, 雷成. 青藏线双源动车组黏着适应性研究[J]. 西南交通大学学报. doi: 10.3969/j.issn.0258-2724.20220843
引用本文: 王波, 罗世辉, 王晨, 曲天威, 马卫华, 雷成. 青藏线双源动车组黏着适应性研究[J]. 西南交通大学学报. doi: 10.3969/j.issn.0258-2724.20220843
WANG Bo, LUO Shihui, WANG Chen, QU Tianwei, MA Weihua, LEI Cheng. Adhesion Adaptability of Dual-Source-Powered Electric Multiple Unit on Qinghai-Xizang Line[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20220843
Citation: WANG Bo, LUO Shihui, WANG Chen, QU Tianwei, MA Weihua, LEI Cheng. Adhesion Adaptability of Dual-Source-Powered Electric Multiple Unit on Qinghai-Xizang Line[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20220843

青藏线双源动车组黏着适应性研究

doi: 10.3969/j.issn.0258-2724.20220843
基金项目: 国家自然科学基金(51575458);河南智能安全工程技术中心开放性课题(2021KFJJ001); 河北省高等学校科学技术研究项目(QN2021232)
详细信息
    作者简介:

    王波(1988—),男,博士研究生,研究方向为 轨道车辆系统动力学 ,E-mail:wbb22@126.com

    通讯作者:

    马卫华(1979—),男,研究员,博士生导师,研究方向为 车辆系统动力学、纵向动力学、悬浮架设计及其动力学 ,E-mail:mwh@swjtu.edu.cn

  • 中图分类号: U262.0

Adhesion Adaptability of Dual-Source-Powered Electric Multiple Unit on Qinghai-Xizang Line

  • 摘要:

    为了分析运行效率更高的双源动车组在青藏线(格尔木—拉萨段)运行的可行性,建立机车动力学模型并进行了验证;采用动力学方法研究了双源动车组机车(动车)和青藏线成熟运营的HXN3内燃机车在直线段、曲线段和坡道上的牵引黏着系数、牵引力、蠕滑率与速度之间的关系;通过对比2个机车的动力学响应,验证牵引工况下双源动车组的黏着特性. 通过分析可以发现:1)机车的牵引黏着系数与机车的牵引力成正比,当车速在40 km/h~120 km/h时,,双源动车组机车的黏着系数由0.19降低至0.09,黏着富裕度则由59%提高至85.7%;2)在直线段和坡道情况下,双源动车组的黏着富裕度均大于HXN3机车,对适应恶劣外界环境引起的轮轨黏着下降能力更强,对高原环境的适应性更优;3)曲线段,忽略结构引起的黏降差异,R300 m曲线时双源动车组和HXN3型机车的黏降幅度分别为6.3%和6.8%,R800 m曲线时,HXN3型机车曲线黏降幅度为3%,而双源动车组低于限值,可以保证有足够的黏着.

     

  • 图 1  HXN3型高原机车转向架

    Figure 1.  Bogie of HXN3 plateau locomotive

    图 2  FXN3型高原机车转向架

    Figure 2.  Bogie of FXN3 plateau locomotive

    图 3  黏着引起的车轮损伤

    Figure 3.  Wheel damage caused by adhesion

    图 4  机车变速牵引工况动力学模型(以HXN3机车为例)

    Figure 4.  Traction dynamic model of locomotive at variable speed (HXN3 locomotive)

    图 5  机车匀速牵引工况动力学模型(以HXN3机车为例)

    Figure 5.  Traction dynamic model of locomotive at constant speed (HXN3 locomotive)

    图 6  轴重转移

    Figure 6.  Axle load transfer

    图 7  纵向黏着系数

    Figure 7.  Longitudinal adhesion coefficient

    图 8  纵向黏着系数

    Figure 8.  Longitudinal adhesion coefficient

    图 9  牵引力发挥(R300 m)

    Figure 9.  locomotive traction condition (R300 m)

    图 10  牵引力发挥(R800 m)

    Figure 10.  locomotive traction condition (R800 m)

    图 11  纵向黏着系数、轮对转速(20‰坡道)

    Figure 11.  Longitudinal adhesion coefficient and wheelset rotation speed(20‰ ramp)

    图 12  HXN3机车纵向黏着系数、轮对转速(20‰坡道)

    Figure 12.  HXN3 longitudinal adhesion coefficient and wheelset rotation speed(20‰ ramp)

    图 13  纵向蠕滑率、黏着系数(20‰坡道)

    Figure 13.  Longitudinal creepages and adhesion coefficient(20‰ ramp)

    表  1  HXN3和FXN3机车主要技术参数

    Table  1.   Main technical parameters of HXN3 and FXN3 locomotives

    序号 项目 HXN3 FXN3
    1 轨距/mm 1435 1435
    2 持续速度/km·h−1 23 28
    3 定距/m 13.900 16.435
    4 轴距/m 1.755/1.925 1.95/2.05
    5 最大运用速度km·h−1 120 160
    6 柴油机装车功率/kW 3700 3500
    7 起动牵引力/kN 620 245
    8 持续牵引力/kN 598 200
    9 牵引杆高度/m 0.725 0.685
    10 牵引杆长度/m 1.238 1.350
    下载: 导出CSV

    表  2  HXN3和FXN3机车动力学参数(部分)

    Table  2.   Main dynamic parameters of HXN3 and FXN3 locomotives (part)

    序号 项目/单位 HXN3 FXN3
    1 一系纵向刚度/(MN·m−1 30.00 28.59
    2 一系横向刚度/(MN·m−1 0.800 3.588
    3 一系垂向刚度/(MN·m−1 0.838 2.320
    4 二系纵向刚度(橡胶堆或钢簧)/
    (MN·m−1
    0.3 0.192
    5 二系横向刚度/(MN·m−1 0.200 0.192
    6 二系垂向刚度/(MN·m−1 7.7 0.5185
    7 抗蛇形减振器/(kN·s·m−1 16.5@0.01 14.2@0.01
    8 二系横向减振器/(kN·s·m−1 4.5@0.1 2.8@0.05
    9 轴重/t 25 23
    下载: 导出CSV
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  • 收稿日期:  2022-12-02
  • 修回日期:  2023-07-07
  • 网络出版日期:  2024-06-04

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