机车传动系统振动分析

doi:10.3901/JME.2018.12.102

机械工程学报 ›› 2018, Vol. 54 ›› Issue (12): 102-108.doi: 10.3901/JME.2018.12.102

• 特邀专栏：大国重器：复兴之路上的轨道交通技术 • 上一篇下一篇

机车传动系统振动分析

杨柳¹, 李强¹, 杨绍普², 王久健³, 顾晓辉²

1. 北京交通大学机械工程学院北京 100044;
2. 石家庄铁道大学机械工程学院石家庄 050043;
3. 湖南大学机械与运载工程学院长沙 410000

收稿日期:2016-12-30 修回日期:2018-02-05 出版日期:2018-06-20 发布日期:2018-06-20
通讯作者: 李强(通信作者),男,1963年出生,博士,教授,博士研究生导师。主要研究方向为结构疲劳强度及可靠性。
作者简介:杨柳,男,1987年出生,博士研究生。主要研究方向为转子动力学。E-mail:yang_8873@126.com
基金资助:
国家自然科学基金资助项目（U1534204）。

Vibration Analysis of Locomotive Rotor System

YANG Liu¹, LI Qiang¹, YANG Shaopu², WANG Jiujian³, GU Xiaohui²

1. School of Mechanical Engineering, Beijing Jiao tong University, Beijing 100044;
2. School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043;
3. College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410000

Received:2016-12-30 Revised:2018-02-05 Online:2018-06-20 Published:2018-06-20

摘要/Abstract

摘要： 随着机车速度的提高，对机车的运行安全性和稳定性提出了更高的要求。考虑不平衡质量、齿轮啮合刚度、轴承支撑刚度和轮轨接触的影响下，建立机车传动系统有限元单元动态模型。其次，采用迭代法，求取了临界转速值及振型响应。分析齿轮啮合刚度、轴承支撑刚度、轮轨接触力作用下，传动系统齿轮单元幅频响应变化。结果表明：复杂环境因素下，传动系统齿轮啮合频率及固有频率处，系统振动响应较大。轴承通过频率的振动响应微弱。轮轨接触刚度影响下，传动系统啮合频率、固有频率及轴承通过频率的振动响应受到极大干扰。

关键词: 临界转速, 轮轨激励, 啮合齿轮, 有限元单元法, 振动响应

Abstract: With the continuous improvement of locomotive speed, it has demanded higher requirement of the stability and operating safety. Firstly, taking into account the composite factors such as bear elastic-support and gear mesh stiffness. the dynamical model of Locomotive transmission Finite-element system is established based on Lagrange principle of minimum potential energy. Secondly, numerical solution of critical speed and modal response solved by iteration method. Finally, under the action of bear supporting stiffness, gear mesh stiffness and wheel-rail contact force, the amplitude-frequency response of rotor system are analysed qualitatively. The results show that when frequency was near to the gear mash frequency and natural frequency of the drive system, vibration amplitudes increased obviously with complex environment. In the meantime, the amplitude of the passing frequency of rolling bearing decreased. Moreover, under influence of the rail contact stiffness, vibration amplitude of associated with the gear mesh frequency, natural frequency and passing frequency of rolling bearing were disturbed.

Key words: critical speed, finite-element method, meshing gear, vibration respone, wheel-rail excitation

中图分类号:

O322

杨柳, 李强, 杨绍普, 王久健, 顾晓辉. 机车传动系统振动分析[J]. 机械工程学报, 2018, 54(12): 102-108.

YANG Liu, LI Qiang, YANG Shaopu, WANG Jiujian, GU Xiaohui. Vibration Analysis of Locomotive Rotor System[J]. Journal of Mechanical Engineering, 2018, 54(12): 102-108.

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机车传动系统振动分析

Vibration Analysis of Locomotive Rotor System

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