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http://dx.doi.org/10.7782/JKSR.2012.15.2.141

Analysis for Optimal Rail Grinding Amount by Rolling Contact Fatigue Test in High Speed Railway  

Sung, Deok-Yong (대원대학교 철도건설과)
Chang, Ki-Sung (서울과학기술대학교 철도전문대학원)
Park, Yong-Gul (서울과학기술대학교 철도전문대학원)
Publication Information
Journal of the Korean Society for Railway / v.15, no.2, 2012 , pp. 141-146 More about this Journal
Abstract
The rail surface defects which are generated on repeated rolling contact fatigue are getting increased according to high speed, high density, and minimum weight. In addition, Increasing noise and vibration are affected by these also impact load generated as well. Because of this phenomenon, more serious and critical damages were occurred. In fact, in order to control them, the rail grinding amount in Korea. This study evaluated how depth of hardening on rail surface is formed and suggested optimal rail grinding amount by RCF(rolling contact fatigue) test with generated contact pressure between KTX wheel and UIC60 rail by applying FEM analysis. Therefore, the amount was generated approximately 0.2mm/20MGT to maintain integrity of rail surface by getting rid of depth of hardening on rail according to rail accumulated passing tonnage.
Keywords
Rolling contact fatigue; Hardness; Grinding; Contact pressure;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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