Effect of Gear Eccentricity on Dynamic Behavior of Locomotive Rolling Stock Transmission System

Li Fuzhong; Du Hongmei; Li Fenglin; Fan Yiwei; Zhang Liang; Wang Zhiwei

doi:10.16578/j.issn.1004.2539.2023.01.005

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Effect of Gear Eccentricity on Dynamic Behavior of Locomotive Rolling Stock Transmission System

Theory·Research | 更新时间：2023-06-07

- Effect of Gear Eccentricity on Dynamic Behavior of Locomotive Rolling Stock Transmission System
- Journal of Mechanical Transmission Vol. 47, Issue 1, Pages: 35-42(2023)
- 作者机构：
  
  1.成都运达科技股份有限公司，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：10.16578/j.issn.1004.2539.2023.01.005
  CLC：
- Published：15 January 2023，
  
  Received：28 December 2021，
  
  Revised：27 February 2022，
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李夫忠,杜红梅,李凤林等.齿轮偏心对机车车辆传动系统动力学行为的影响[J].机械传动,2023,47(01):35-42.

Li Fuzhong,Du Hongmei,Li Fenglin,et al.Effect of Gear Eccentricity on Dynamic Behavior of Locomotive Rolling Stock Transmission System[J].Journal of Mechanical Transmission,2023,47(01):35-42.
李夫忠,杜红梅,李凤林等.齿轮偏心对机车车辆传动系统动力学行为的影响[J].机械传动,2023,47(01):35-42. DOI： 10.16578/j.issn.1004.2539.2023.01.005.

Li Fuzhong,Du Hongmei,Li Fenglin,et al.Effect of Gear Eccentricity on Dynamic Behavior of Locomotive Rolling Stock Transmission System[J].Journal of Mechanical Transmission,2023,47(01):35-42. DOI： 10.16578/j.issn.1004.2539.2023.01.005.

摘要

为掌握服役过程中齿轮偏心对机车车辆传动系统动态响应特性的影响，建立了考虑齿轮传动系统的机车车辆动力学模型。齿轮传动系统通过齿轮啮合、悬挂系统与轮轨关系等耦合集成于整车动力学模型，该模型详细考虑了齿侧间隙、时变啮合刚度、轨道几何不平顺及轮轨接触等非线性因素，能够更加真实地反映牵引状态下的车辆动力学行为；基于该模型，系统研究了主动齿轮不同偏心量下的机车车辆齿轮传动系统动力学行为，并通过了线路试验验证。结果表明，齿轮传动系统的动力学性能直接受到偏心影响，其传动平稳性随着偏心量增加而逐渐恶化。此外，在齿轮箱不同监测点中靠近小齿轮端，垂向加速度受齿轮偏心的影响最为显著，该测点可用于齿轮偏心健康监测。研究为机车车辆齿轮传动系统的智能运维提供了理论基础。

Abstract

To investigate the effects of the gear eccentricity on the dynamic characteristics of the gear transmission system of locomotives

a locomotive dynamics model considering gear transmission system is established. The gear transmission sub-system and the locomotive system are coupled through the gear meshing

suspension system and wheel-rail interactions. The nonlinear factors such as gear backlash

time-varying meshing stiffness

track geometric irregularity and wheel-rail contact are considered in detail. The proposed model can reflect the vehicle dynamic behavior more realistically under traction state. The dynamic behaviours of the gear transmission system for the locomotive are systematically investigated under different gear eccentricities

and is verified by field tests. The results show that the dynamic performance of gear transmission system is directly affected by gear eccentricity

and its transmission stability deteriorates gradually with the increase of eccentricity. In addition

among the different monitoring points of the gearbox housing

the vertical acceleration near the pinion end is most significantly affected by gear eccentricity. This point can be used for gear eccentricity health monitoring

which provides a theoretical basis for the operation and maintenance of the locomotive gear transmission system.

关键词

机车车辆齿轮传动系统动力学行为齿轮偏心

Keywords

Locomotive rolling stockGear transmission systemDynamic behaviorGear eccentricity

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