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http://dx.doi.org/10.14775/ksmpe.2017.16.6.139

Wheel-Rail Contact Analysis Considering Axle Deformation Using a One-Dimensional Beam Element  

Choi, Ha-Young (Dept. of Mechanical Engineering, Dongyang Mirae UNIV.)
Lee, Dong-Hyung (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Kwon, Seok-Jin (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Seo, Jeong-Won (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.6, 2017 , pp. 139-145 More about this Journal
Abstract
It is necessary to analyze the exact contact position and contact stress of the wheel-rail in order to predict damage to the wheel and rail. This study presents a wheel-rail contact analysis model that considers the deformation of the axle. When a wheel-rail contact analysis is performed using a full three-dimensional model of the wheelset and rail, the analytical model becomes very inefficient due to the increase in analysis time and cost. Therefore, modeling the element-coupling model of the wheel and rail as a three-dimensional element and the axle as a one-dimensional element is proposed. The wheel-rail contact characteristics in the proposed analysis model for straight and curved lines were analyzed and compared with the conventional three-dimensional analysis model. Considering the accuracy of the analysis results and time, the result shows that the proposed analytical model has almost the same accuracy as a full three-dimensional model, but the computational effort is significantly reduced.
Keywords
Wheel-Rail Interface; Wheelset; Rail; Finite Element Method; Contact Pressure;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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