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http://dx.doi.org/10.7734/COSEIK.2017.30.5.435

The Improvement of Incompatible Sliding Contact Problem Using Mesh Refinement And Its Application to Railway Skewed Culvert Problem  

Choi, Chan-Yong (High-Speed Railroad Systems Research Center, Korea Railroad Research Institute)
Yeo, In-Ho (High-Speed Railroad Systems Research Center, Korea Railroad Research Institute)
Chung, Keun-Young (KY Technology)
Lee, Gye-Hee (Ocean Engineering College, Mokpo National Maritime University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.30, no.5, 2017 , pp. 435-444 More about this Journal
Abstract
The vehicle-track structure dynamic interaction analysis problem can be treated as sliding contact problem, and it is assumed that vehicle run at a constant speed over a rail modeled as beam elements. Unfortunately, Salome-Meca can not satisfy the compatibility condition for the beam master elements, which are consist of the elements with higher order polynomial shape function, in sliding contact problem. In this study, it is suggested to use more finer beam master element mesh as the remedy for incompatibility in sliding contact problem, and the accuracy of the solution is secured. For this, the effect of beam element mesh refinement consisting runway is analysed through simple examples, and the applicability to the dynamic interaction analysis is evaluated. Finally, the dynamic interaction analysis of railway skewed culvert transition problem is carried out to evaluate the effect of supporting stiffness due to backfill pattern changes and track irregularity due to uneven subgrade settlement.
Keywords
dynamic interaction analysis; salome-meca; sliding contact; track structure; skewed culvert transition;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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