DOI QR코드

DOI QR Code

Numerical characterization of real railway overhead cables

  • Sanchez-Rebollo, Cristina (Institute for Research in Technology, Universidad Pontificia Comillas) ;
  • Velez, Enrique (Department of Mechanical Engineering, Universidad Pontificia Comillas) ;
  • Jimenez-Octavio, Jesus R. (Department of Mechanical Engineering, Universidad Pontificia Comillas)
  • 투고 : 2014.10.10
  • 심사 : 2015.05.25
  • 발행 : 2015.07.25

초록

This paper presents a numerical characterization of real railway overhead cables based on computational fluid dynamics (CFD). Complete analysis of the aerodynamic coefficients of this type of cross section yields a more accurate modelling of pressure loads acting on moving cables than provided by current approaches used in design. Thus, the characterization of certain selected commercial cables is carried out in this work for different wind speeds and angles of attack. The aerodynamic lift and drag coefficients are herein determined for two different types of grooved cables, which establish a relevant data set for the railway industry. Finally, the influence of this characterization on the fluid-structure interaction (FSI) is proved, the static behavior of a catenary system is studied by means of the finite element method (FEM) in order to analyze the effect of different wind angles of attack on the stiffness distribution.

키워드

과제정보

연구 과제 주관 기관 : Ministerio de Ciencia y Tecnologia, Ministerio de Ciencia e Innovacion

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피인용 문헌

  1. Assesment of the transverse galloping stability of a railway overhead located above a railway bridge vol.131-132, 2017, https://doi.org/10.1016/j.ijmecsci.2017.07.024
  2. A Comparative Study on the Wind Deflection of Railway Overhead Contact Line Based on Empirical Formula and Finite Element Approach vol.2021, pp.None, 2015, https://doi.org/10.1155/2021/5737457
  3. Railway Overhead Wiring Structures in Australia: Review and Structural Assessment vol.12, pp.3, 2015, https://doi.org/10.3390/app12031492