열차하중을 고려한 장대레일 궤도 해석

Title
열차하중을 고려한 장대레일 궤도 해석
Alternative Title
Analysis of CWR Track Considering Wheel loads
Author(s)
한상윤; 강영종; 한택희; 임남형; 김정훈
KIOST Author(s)
Han, Taek Hee(한택희)
Publication Year
2011-10-22
Abstract
At high rail temperature above the neutral temperature, high compressive axial stresses will occur in the rails. High thermal axial force and vehicle loads cause the track to shift in a lateral direction and the formation of track geometry imperfections (track irregularity). When the thermal stress level and track irregularity with vehicle load reach a critical value, the track loses stability. In many studies, the stability of CWR tracks is analyzed. However these studies are only considered in temperature load. The main objective of this investigation was to estimate a new, comprehensive, realistic, the stability of CWR tracks considering wheel load. The ballast resistance is changed by wheel load. When the wheel load is applied, rails and ties are moved upward or downward. In this case the friction between ties and ballasts is decreased or increased. In this study the change of the ballast resistance of each tie was applied to the nonlinear analysis of CWR tracks.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28168
Bibliographic Citation
한국철도학회 학술발표 대회, 2011
Publisher
한국철도학회
Type
Conference
Language
Korean
Publisher
한국철도학회
Related Researcher
Research Interests

Structural Engineering,Composite Structure,Marine Energy,구조공학,합성구조,해양에너지

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