Electromechanical coupling vibration characteristics of high-speed train transmission system considering gear eccentricity and running resistance

IF 3.8 2区工程技术 Q1 ENGINEERING, MECHANICAL Acta Mechanica Sinica Pub Date : 2024-11-13 DOI:10.1007/s10409-024-24307-x

Yeping Yuan (, ), Junguo Wang (, )

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Abstract

The gear transmission system directly affects the operational performance of high-speed trains (HST). However, current research on gear transmission systems of HST often overlooks the effects of gear eccentricity and running resistance, and the dynamic models of gear transmission system are not sufficiently comprehensive. This paper aims to establish an electromechanical coupling dynamic model of HST traction transmission system and study its electromechanical coupling vibration characteristics, in which the internal excitation factors such as gear eccentricity, time-varying meshing stiffness, backlash, meshing error, and external excitation factors such as electromagnetic torque and running resistance are stressed. The research results indicate that gear eccentricity and running resistance have a significant impact on the stability of the system, and gear eccentricity leads to intensified system vibration and decreased anti-interference ability. In addition, the characteristic frequency of gear eccentricity can be extracted from mechanical signals and current signals as a preliminary basis for eccentricity detection, and electrical signals can also be used to monitor changes in train running resistance in real time. The results of this study provide some useful insights into designing dynamic performance parameters for HST transmission systems and monitoring train operational states.

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考虑齿轮偏心和运行阻力的高速列车传动系统机电耦合振动特性

齿轮传动系统直接影响高速列车（HST）的运行性能。然而，目前对高速列车齿轮传动系统的研究往往忽略了齿轮偏心和运行阻力的影响，齿轮传动系统的动态模型也不够全面。本文旨在建立 HST 牵引传动系统的机电耦合动态模型，研究其机电耦合振动特性，其中强调了齿轮偏心、时变啮合刚度、反向间隙、啮合误差等内部激励因素和电磁转矩、运行阻力等外部激励因素。研究结果表明，齿轮偏心和运行阻力对系统的稳定性有显著影响，齿轮偏心会导致系统振动加剧，抗干扰能力下降。此外，可以从机械信号和电流信号中提取齿轮偏心的特征频率，作为偏心检测的初步依据，还可以利用电信号实时监测列车运行阻力的变化。这项研究的结果为设计 HST 传动系统的动态性能参数和监测列车运行状态提供了一些有益的启示。

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来源期刊

Acta Mechanica Sinica 物理-工程：机械

CiteScore

5.60

自引率

20.00%

发文量

1807

审稿时长

4 months

期刊介绍： Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences. Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences. In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest. Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics