Dynamic Characteristics of Three-Body Braking System Considering Tire-Road Friction

IF 1.9 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Shenggang Du, Yuhang Zhang, Daogao Wei, Yawei Zhu, Liang Zhang, Di Wu
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引用次数: 0

Abstract

With the significant increase in vehicle ownership in our country, urban traffic conditions have become increasingly congested. Low-speed driving has become more prevalent, leading to more frequent instances of starting and braking. Consequently, the issue of low-speed braking flutter has become increasingly prominent.While the brake is in an open environment, the dust and particles in the air and the debris generated by the brake itself will have an impact on the braking behavior. In addition, according to the theory of modal coupling, the braking stability of the vehicle is also affected by other components. In this paper, different dynamic torsional models of braking system are established according to different braking conditions. Through numerical calculation, the influence of tire parameters, road conditions and particles on the friction dynamics characteristics of braking system pairs is explored. The results show that the instability of the brake pair system often occurs at low speed. Different tire slip ratio, tire offset factors and road conditions will lead to different relative motions of the braking system, but the existence of particles in the brake lining-disc interface can enhance the motion stability of the system.
考虑轮胎与路面摩擦的三体制动系统动态特性
随着我国汽车保有量的大幅增加,城市交通状况日益拥堵。低速行驶越来越普遍,导致起步和制动的情况也越来越频繁。当制动器处于开放环境时,空气中的灰尘和颗粒以及制动器本身产生的碎片都会对制动行为产生影响。此外,根据模态耦合理论,车辆的制动稳定性还会受到其他部件的影响。本文根据不同的制动条件,建立了不同的制动系统动态扭转模型。通过数值计算,探讨了轮胎参数、路况和颗粒对制动系统对摩擦动力学特性的影响。结果表明,制动对系统的不稳定性往往发生在低速时。不同的轮胎滑移比、轮胎偏移系数和路况会导致制动系统产生不同的相对运动,但制动衬片-制动盘界面颗粒的存在可以增强系统的运动稳定性。
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
4.00
自引率
10.00%
发文量
72
审稿时长
6-12 weeks
期刊介绍: The purpose of the Journal of Computational and Nonlinear Dynamics is to provide a medium for rapid dissemination of original research results in theoretical as well as applied computational and nonlinear dynamics. The journal serves as a forum for the exchange of new ideas and applications in computational, rigid and flexible multi-body system dynamics and all aspects (analytical, numerical, and experimental) of dynamics associated with nonlinear systems. The broad scope of the journal encompasses all computational and nonlinear problems occurring in aeronautical, biological, electrical, mechanical, physical, and structural systems.
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