Slip Temperature Differential and Usage: Ballasted and Direct Fixation Tracks
Publication: International Conference on Transportation and Development 2022
ABSTRACT
This paper analyzes the slip temperature differential in a railway track. The formula for the slip temperature differential in a ballasted track from Lichtberger was used to derive alternate formulas in terms of longitudinal resistance and the sectional area of a rail for both ballasted and direct fixation tracks. Additionally, the formula form Esveld for the maximum slip of a rail in a fastener under elastic shear resistance was rearranged and reformulated to obtain the slip temperature differential in terms of longitudinal resistance and the sectional area of a rail for both ballasted and direct fixation tracks. The aforementioned formulas were compared, and some interesting findings were drawn after their application. The slip temperature differential was used to compute the rail neutral temperature range for natural distressing. Finally, the Transit Cooperative Research Programs’ procedure for estimating the longitudinal resistance in a direct fixation track was analyzed, and a review was called for.
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REFERENCES
Esveld, C. (2001). Modern Railway Track. MRT-Productions, the Netherlands.
Kerr, A. (2003). Fundamentals of Railway Engineering. Simmons–Boardman Books, Omaha, Nebraska.
Kish, A., Samavedam, G., and Wormley, D. (2020). “Fundamentals of track lateral shift for high-speed rail applications.” Accessed February 2, 2020. https://pdfs.semanticscholar.org/07ab/f5d13bf4eb8354e47c0b4cc623f50da86029.pdf.
Lichtberger, B. (2005). Track Compendium: Formation, Permanent Way, Maintenance, Economics. Eurail press, Germany.
TCRP (Transit Cooperative Research Program). (2005)., Track related research, Volume 6, Direct Fixation track design, Specifications, Research and related materials, Part A. Transportation Research Board, National Academy Press, Washington, DC.
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International Conference on Transportation and Development 2022
Pages: 13 - 23
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Published online: Aug 31, 2022
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