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Rail Surface Quality Analysis According to Rail Grinding on Operational Railway Track
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운행선로 레일 연마에 따른 레일표면 상태 분석

논문 기본 정보

Type
Academic journal
Author
Wootae Jeong (Korea Railroad Research Institute) Jiyoung Hong (Korea Railroad Research Institute) HyoIn Kho (Korea Railroad Research Institute) Hyunwook Lee (Korea Railroad Research Institute)
Journal
The Korean Society For Railway Journal of the Korean Society for Railway Vol.24 No.10(Wn.148) KCI Accredited Journals SCOPUS
Published
2021.10
Pages
852 - 860 (9page)
DOI
10.7782/JKSR.2021.24.10.852

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Result
Rail Surface Quality Analysis According to Rail Grinding on Operational Railway Track
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Abstract· Keywords

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The continuous contact and interaction between wheel and rail causes cracks and wear of railway rails. Moreover, since the damaged surface of the rail increases noise and vibration, reduces riding comfort, and can cause railway accidents, the rail head and its surface should be maintained through continuous monitoring and observation. In this study, we investigated the rail surface grinding methods and analyzed effects on rail wear. In particular, the change in corrugation was observed by measuring the surface roughness of the rails at every three months for curved lines of urban railways, where corrugation is rapidly developing. In addition, the effect of the grinding operation by the rail grinding train performed during the measurement period was analyzed. As a result, it was verified that the amplitude of the rail wear decreased by more than about 5 ㏈ after grinding, but gradually increased upon the operation of the train after that. Additionally, there was also difference in spectrum attenuation according to the wavelength ranges for rail maintenance. Therefore, it was confirmed that the quality control of the rail requires accurate control of the grinding depths according to the characteristics of the rail surface roughness and the wavelength ranges in interest.
#Rail grinding #Rail maintenance #Automated grinding machine #Compact grinding machine #Corrective grinding #레일연마 #파상마모 #레일표면조도 #조도측정 #유지보수

Contents

Abstract
초록
1. 서론
2. 레일 표면 연마 및 측정
3. 현장 시험
4. 결론
References

References (14)

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British Standard (2012) Railway Applications-Track-Acceptance of Works, Part 3; Acceptance of Reprofiling Rails in Track, EN 13231-3. google schola Railway Maintenance Guideline (2018) Korea Rail Network Authority. google schola J. Shin, W. Jeong (2019) Performance evaluation of automated compact rail surface grinding machine for railway rolling noise reduction, Journal of the Korean Society for Railway, 22(2), pp. 287-297. google schola W. Jeong, J. Shin (2020) Grinding effect according to control varialbles of compact rail surface grinding machine, Journal of the Korean Society for Railway, 23(7), pp. 688-695. google schola Speno International SA, https://speno.ch/en/machines (Accessed 23 August 2021). google schola

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