Dynamic modelling and experimental validation of a dynamic track stabiliser vehicle–track spatially coupling dynamics system

IF 1.9 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Meng Lin, Chunjun Chen, Ji Deng, Huijie Qin
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引用次数: 0

Abstract

A dynamic track stabiliser vehicle is an unconventional vehicle for maintaining the quality of ballasted tracks, and its dynamic performance has a significant impact on its working efficiency. For the first time, this paper proposes a comprehensive dynamic track stabiliser vehicle–track coupled vertical and lateral multi-body dynamics model based on classical vehicle–track coupling dynamics theory. In this model, detailed attention is given to the vertical, lateral, roll, yaw, and pitch motions of the components, including the vehicle body, bogies, wheelsets and stabilisers. The Shen–Hedrick–Elkins theory is employed to describe non-linear wheel–rail contact relationships between the bogie wheelsets and the rails, and three various methodologies are adopted to address complicated wheel–rail interaction problems between the stabiliser wheelsets and the rails. This comprehensive multi-body dynamics model enables a detailed investigation of the dynamic performance of the system under complex excitations, such as the lateral excitation of the stabilisers and vertical downward pressure exerted by hydraulic cylinders, especially the dynamic response of the stabilisers in the vibration environment of the complete vehicle. The dynamics model was fully validated by comparing its results with time- and frequency-domain data obtained from field tests. The results indicate that the model is capable of being used for analysis of the dynamic performance of dynamic track stabiliser vehicles.
动态轨道稳定器车轨空间耦合动力学系统的动态建模和实验验证
动态轨道稳定器车辆是一种用于维护有砟轨道质量的非常规车辆,其动态性能对其工作效率具有重要影响。本文基于经典的车辆-轨道耦合动力学理论,首次提出了一个全面的动态轨道稳定器车辆-轨道垂直和横向耦合多体动力学模型。在该模型中,详细关注了车体、转向架、轮对和稳定器等部件的垂直、横向、滚动、偏航和俯仰运动。采用 Shen-Hedrick-Elkins 理论来描述转向架轮副与钢轨之间的非线性轮轨接触关系,并采用三种不同的方法来解决稳定器轮副与钢轨之间复杂的轮轨相互作用问题。这种全面的多体动力学模型能够详细研究系统在复杂激励下的动态性能,如稳定器的横向激励和液压缸施加的垂直向下压力,特别是稳定器在整车振动环境下的动态响应。通过将动力学模型的结果与现场测试获得的时域和频域数据进行比较,对该模型进行了全面验证。结果表明,该模型可用于分析动态轨道稳定器车辆的动态性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.10
自引率
11.10%
发文量
38
审稿时长
>12 weeks
期刊介绍: The Journal of Multi-body Dynamics is a multi-disciplinary forum covering all aspects of mechanical design and dynamic analysis of multi-body systems. It is essential reading for academic and industrial research and development departments active in the mechanical design, monitoring and dynamic analysis of multi-body systems.
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