Results 61 to 70 of about 879 (166)
Chinese Journal of Mechanical EngineeringAs a new grinding and maintenance technology, rail belt grinding shows significant advantages in many applications. The dynamic characteristics of the rail belt grinding vehicle largely determines its grinding performance and service life.
Wengang Fan +4 more
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Experimental and simulation investigation into residual stress for rail grinding with abrasive belt
Jin'gangshi yu moliao moju gongcheng, 2020 To intuitively understand the residual stress state on the rail surface after belt grinding, the influences of grinding parameters on residual stress were investigated on a test bench.
WANG Wenxi +3 more
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New composite grinding wheel for rail grinding and experiments
Jin'gangshi yu moliao moju gongcheng, 2018 A new composite grinding wheel for rail grinding was developed by brazing technology and traditional hot pressing technology. The composite grinding wheel contained not only the components of traditional resin grinding wheel but also metal bonded diamond
ZHANG Yiquan +6 more
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Research on grinding temperature field of rail grinding with compound wheel
Jin'gangshi yu moliao moju gongcheng, 2020 In order to study the temperature field of the composite grinding wheel with brazed diamond insert for rail grinding, a comparative test was carried out on the grinding temperatures of the composite wheel and a resin zirconia corundum wheel for grinding ...
YAN Xinlin +4 more
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Rolling contact fatigue in relation to rail grinding
Wear, 2016 Spalling defects of a periodic nature are sometimes observed on heat-treated pearlitic steel rails. Defect properties suggest a relationship between maintenance grinding on a regular basis and the initiation of rolling contact fatigue (RCF). In this work, the effects of maintenance grinding are investigated experimentally for both standard and heat ...
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Chengshi guidao jiaotong yanjiu[Objective] Causes for train hunting instability in rail transit turnout areas are complex, usually related to turnout irregularity, vehicle state, wheel-rail relationship and other factors, seriously affecting driving comfort and threaten driving safety.
CHEN Dalei
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Rail grinding and its impact on the wear of wheels and rails
, 2007 Godkänd; 2007; 20070820 (pafi)
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Developments in the Built EnvironmentThis study proposes a framework to evaluate the reliability of rail operation times and optimal maintenance intervals for sleepers and fasteners using a long-term maintenance database in South Korea.
Koochul Ji, Ilyoon Choi, Jongmuk Won
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Development of new rail repair profiles for different operating conditions
Вестник Научно-исследовательского института железнодорожного транспортаIntroduction. Currently, contact-fatigue defects prevail on rails with increased intensity of lateral and vertical rail wear. The authors consider it essential to develop rational repair profiles for sections with different track plan, as current repair ...
O. A. Suslow, I. V. Khromov
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RESEARCH ON OPTIMIZATION OF HEAVY LOAD RAILWAY RAIL GRINDING PROFILE BASED ON ABRASION CONTROL
Jixie qiangdu, 2020 Wa-ri heavy load railway is taken as the research object in the paper,the rail profiles are observed before and after grinding. Based on the wheel/rail contact wear theory and the finite element model of high-speed wheel/rail steady rolling contact ...
YANG YiHang, LIU XueShen, LIU JiHua
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