基于圆周试验台的附着力恢复试验研究

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-13 DOI:10.1108/ilt-11-2023-0379

Jiajun Zhou, Chao Chen, Chun Tian, Gengwei Zhai, Hao Yu

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引用次数: 0

摘要

目的为了验证水污染条件下附着力恢复现象的存在和原理，使用了创新的圆周轨道-车轮附着力试验台。研究对大滑动条件下的附着特性进行了大量测试。设计/方法/途径通过实验研究了速度、轴载和滑移对附着恢复的影响。研究结果研究结果表明，水条件下确实存在附着力恢复现象。随着滑移率的增加，附着系数呈上升趋势。此外，在当前速度和车轴载荷水平下，附着恢复与滑移率的平方成正比，与车轴载荷成反比。原创性/价值附着恢复现象和本研究中的公式可作为列车制动和防滑控制算法设计的实验和理论基础。同行评议本文的同行评议历史可在以下网址查阅：https://publons.com/publon/10.1108/ILT-11-2023-0379/。

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Experimental study on adhesion recovery based on a circumferential test rig

Purpose

To authenticate the existence and principles of the adhesion recovery phenomenon under water pollution conditions, an innovative circumferential rail–wheel adhesion test rig was used. The study conducted extensive tests on the adhesion characteristics under large sliding conditions.

Design/methodology/approach

Experiments were conducted to investigate the influence of speed, axle load and slip on adhesion recovery. Based on the experimental results, the adhesion recovery transition function was re-fitted.

Findings

The study reveals that the adhesion recovery phenomenon truly exists under water conditions. The adhesion coefficient shows an increasing trend with the growth of the slip ratio. Moreover, at the current speed and axle load levels, the adhesion recovery is directly proportional to the square of the slip ratio and inversely proportional to the axle load.

Originality/value

The phenomenon of adhesion recovery and the formulated equations in this study can serve as an experimental and theoretical foundation for the design of braking and anti-skid control algorithms for trains.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2023-0379/

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.