Numerical and field investigations of track dynamic behavior caused by light and heavy railway vehicles

• Autorzy: Zakeri J. A. , Mosayebi S. A. , Esmaeili M.

Identyfikatory

DOI

10.15632/jtam-pl.54.3.871

• Języki publikacji: EN

Abstrakty

EN

Dynamic behavior of a track-train system is a function of axle loads and support stiffness because of non-linear supports. Therefore, it is expected that the support stiffness affects the behavior of the railway track during passing of a light or heavy car body. Since the effects of axle loads caused by light and heavy railway vehicles and support stiffness of ballasted railway tracks due to passing railway vehicles have not been studied adequately, therefore the present study focused on this issue. For this purpose, this issue was first investigated by passing a light and heavy car body including bogies with three axle loads as field tests. Then, numerical analyses of the railway track caused by the passing of these railway vehicles were studied, and the numerical results were compared with the field results. There was a good agreement between the values of field responses and numerical analyses. Subsequently, a series of sensitivity analyses on effects of the axle loads caused by light or heavy loading and support conditions was done on the ballasted railway track. The results indicated that the maximum vertical displacements increased by axle loads, increased sleeper distances and decreases support stiffness. Finally, equations of track behavior based on support stiffness and axle loads were derived.

Słowa kluczowe

EN

numerical and field investigation; railway track; track dynamics; railway vehicles

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2016
• Tom: Vol. 54 nr 3
• Strony: 871--879
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Zakeri J. A.

• School of Railway Engineering, The Center of Excellence in Railway Transportation, Iran University of Science and Technology, Tehran, Iran

autor

Mosayebi S. A.

• School of Railway Engineering, The Center of Excellence in Railway Transportation, Iran University of Science and Technology, Tehran, Iran

autor

Esmaeili M.

• School of Railway Engineering, The Center of Excellence in Railway Transportation, Iran University of Science and Technology, Tehran, Iran

Bibliografia

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• 10. Witt S., 2008, The Influence of Under Sleeper Pads on Railway Track Dynamics, Department of Management and Engineering, Division of Solid Mechanics, Link¨oping University, Sweden
• 11. Zakeri J.A., 2000, Computer simulation for dynamics of railway track structures, PhD Thesis, School of Civil Engineering, Beijing Jiaotong University, Beijing
• 12. Zakeri J.A., Abbasi R., 2012, Field investigation of variation of rail support modulus in ballasted railway track, Latin American Journal of Solids and Structures, 9, 6, 643-656
• 13. Zakeri J.A., Ghorbani V., 2011, Investigation on dynamic behavior of railway track in transition zone, Journal of Mechanical Science and Technology, 25, 2, 287-292
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniajacą naukę.