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Technical Brief

Influencing Mechanism of Rubber Wheel on Contact Pressure and Metal Removal in Corrugated Rail Grinding by Abrasive Belt

[+] Author and Article Information
Wengang Fan

School of Mechanical, Electronic and Control Engineering,
Beijing Jiaotong University,
Beijing 100044, China;
Key Laboratory of Vehicle Advanced Manufacturing,
Measuring and Control Technology,
Ministry of Education,
Beijing Jiaotong University,
Beijing 100044, China
e-mail: wgfan@bjtu.edu.cn

Yueming Liu

School of Mechanical, Electronic and Control Engineering,
Beijing Jiaotong University,
Beijing 100044, China;
Key Laboratory of Vehicle Advanced Manufacturing,
Measuring and Control Technology,
Ministry of Education,
Beijing Jiaotong University,
Beijing 100044, China
e-mail: liuym@bjtu.edu.cn

Xiaoyang Song

Railway Engineering Research Institute,
China Academy of Railway Sciences,
Beijing 100081, China
e-mail: 15201325673@163.com

Jifa Cheng

School of Mechanical, Electronic and Control Engineering,
Beijing Jiaotong University,
Beijing 100044, China;
Key Laboratory of Vehicle Advanced Manufacturing,
Measuring and Control Technology,
Ministry of Education,
Beijing Jiaotong University,
Beijing 100044, China
e-mail: 16121244@bjtu.edu.cn

Jianyong Li

School of Mechanical, Electronic and Control Engineering,
Beijing Jiaotong University,
Beijing 100044, China;
Key Laboratory of Vehicle Advanced Manufacturing,
Measuring and Control Technology,
Ministry of Education,
Beijing Jiaotong University,
Beijing 100044, China
e-mail: jyli@bjtu.edu.cn

1Corresponding author.

Manuscript received January 29, 2018; final manuscript received August 12, 2018; published online September 17, 2018. Assoc. Editor: Radu Pavel.

J. Manuf. Sci. Eng 140(12), 124501 (Sep 17, 2018) (8 pages) Paper No: MANU-18-1061; doi: 10.1115/1.4041243 History: Received January 29, 2018; Revised August 12, 2018

Rail grinding has been widely recognized as an essential measure in routine maintenance of railway network in the world. Compared with other technologies, the emerging abrasive belt grinding process for direct rail maintenance rather than limited polishing finish has shown the convincing potential to improve metal removal rate and surface quality. However, the influencing mechanism of the rubber wheel on contact pressure and metal removal for the corrugated rails is yet unknown. This paper develops a contact pressure model to obtain the boundary curve and the stress distribution of the contact zone between the rubber wheel with concave peripheral surface and the rail surface with corrugation. Based on this, the metal removal model is subsequently established through the abrasive processing theory. Finite element (FE) simulations and grinding tests are finally implemented. Results confirm the above-mentioned theoretical models of contact pressure and metal removal and show the significant influences of the rubber wheel's feature on contact pressure and metal removal.

Copyright © 2018 by ASME
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References

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Figures

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Fig. 1

Schematic diagram of rail grinding by abrasive belt

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Fig. 2

Global and local coordinate systems for the corrugated rail grinding by abrasive belt

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Fig. 3

Contact relationship between the rubber wheel and the rail surface: (a) Transverse section direction and (b) longitudinal section direction

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Fig. 4

Contact relationship diagram for the rail's wave curve

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Fig. 5

Contact zone contour of a representative example

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Fig. 6

Parametric descriptions of an abrasive grain

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Fig. 7

Schematic diagram of the rectangular microelement

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Fig. 8

Penetration modality of abrasive grains into rail surface

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Fig. 9

Finite element model by ANSYS ls-dyna

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Fig. 10

Contact stress analysis by ANSYS ls-dyna

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Fig. 11

Simulated results of contact zone contour: (a) Case 1, (b) case 2, and (c) case 3

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Fig. 12

Comparison between simulated and theoretical results of the pressure intensity: (a) Case 1, (b) case 2, and (c) case 3

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Fig. 13

Experimental platform for rail grinding by abrasive belt

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Fig. 14

Laser displacement measuring device

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Fig. 15

Five rubber wheels for grinding test

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Fig. 16

Comparison between experimental and theoretical results of metal removal quantity

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