Rail Joint Model Based on the Euler-Bernoulli Beam Theory

Traian Mazilu 1 , Ionuţ Radu Răcănel 2 , Cristian Lucian Ghindea 3 , Radu Iuliu Cruciat 4 , and Mihai-Cornel Leu 5
  • 1 University Politehnica of Bucharest,
  • 2 Technical University of Civil Engineering Bucharest,
  • 3 Technical University of Civil Engineering Bucharest,
  • 4 Technical University of Civil Engineering Bucharest,
  • 5 PhD. Student Doctoral School of Transports, University Politehnica of Bucharest

Abstract

In this paper, a rail joint model consisting of three Euler-Bernoulli beams connected via a Winkler foundation is proposed in order to point out the influence of the joint gap length upon the stiffness of the rail joint. Starting from the experimental results aiming the stiffness of the rail joint, the Winkler foundation stiffness of the model has been calculated. Using the proposed model, it is shown that the stiffness of the rail joint of the 49 rail can decreases up to 10 % when the joint gap length increases from 0 to 20 mm.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1]. 314 Instruction, Rules and tolerances for track construction and maintenance, 1989.

  • [2]. T. MAZILU, M. DUMITRIU, C. TUDORACHE, M. SEBEŞAN: “Wheel-rail joint geometry”, Proceedings of 4th International Workshop on Soft Computing Applications, pp. 259-263, 2010.

  • [3]. W. CAI, Z. WEN, X. JIN, W. ZHAI: “Dynamic stress analysis of rail joint with height difference defect usig finite element method”, Engineering Failure Analysis, Vol. 14, pp. 1488-1499, 2007.

  • [4]. Y. C. CHEN, L.W. CHEN: “Effects of insulated rail joint on the wheel/rail contact stresses under the condition of partial slip”, Wear, Vol. 260, pp. 1267-1273, 2006.

  • [5]. T. X. WU, D.J. THOMPSON: “On the impact noise generation due to a wheel passing over rail joints”, Journal of Sound and Vibration, Vol. 267, pp. 485-496, 2003.

  • [6]. M. OREGUI: “Vertical Railway Track Dynamics: from Measurements to Numerical Modelling”, Doctoral thesis, TU Delft, 2015.

  • [7]. T. MAZILU, M. C. LEU, “On the Modelling of Rail Joint”, Materials Science Forum, Vol. 957, pp. 33-42, 2019.

OPEN ACCESS

Journal + Issues

Search