Assessment of the influence of the elastic properties of rail vehicle suspensions on safety, ride quality and track fatigue

Suárez Esteban, Berta and Mera Sánchez De Pedro, José Manuel and Martínez Muneta, María Luisa and Chover Álvarez-Monteserín, José Antonio (2013). Assessment of the influence of the elastic properties of rail vehicle suspensions on safety, ride quality and track fatigue. "Vehicle System Dynamics", v. 51 (n. 2); pp. 280-300. ISSN 0042-3114. https://doi.org/10.1080/00423114.2012.725852.

Description

Title: Assessment of the influence of the elastic properties of rail vehicle suspensions on safety, ride quality and track fatigue
Author/s:
  • Suárez Esteban, Berta
  • Mera Sánchez De Pedro, José Manuel
  • Martínez Muneta, María Luisa
  • Chover Álvarez-Monteserín, José Antonio
Item Type: Article
Título de Revista/Publicación: Vehicle System Dynamics
Date: 2013
ISSN: 0042-3114
Volume: 51
Subjects:
Freetext Keywords: railway dynamics, sensitivity analysis, dynamic behaviour, stiffness, damping, primary suspension, secondary suspension, safety, track fatigue, ride quality, EN 14363 standard, UIC 518 leaflet
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica y de Fabricación [hasta 2014]
Creative Commons Licenses: None

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Abstract

A sensitivity analysis has been performed to assess the influence of the elastic properties of railway vehicle suspensions on the vehicle dynamic behaviour. To do this, 144 dynamic simulations were performed modifying, one at a time, the stiffness and damping coefficients, of the primary and secondary suspensions. Three values were assigned to each parameter, corresponding to the percentiles 10, 50 and 90 of a data set stored in a database of railway vehicles.After processing the results of these simulations, the analyzed parameters were sorted by increasing influence. It was also found which of these parameters could be estimated with a lesser degree of accuracy in future simulations without appreciably affecting the simulation results. In general terms, it was concluded that the highest influences were found for the longitudinal stiffness and the lateral stiffness of the primary suspension, and the lowest influences for the vertical stiffness and the vertical damping of the primary suspension, with the parameters of the secondary suspension showing intermediate influences between them.

More information

Item ID: 30259
DC Identifier: http://oa.upm.es/30259/
OAI Identifier: oai:oa.upm.es:30259
DOI: 10.1080/00423114.2012.725852
Official URL: http://www.tandfonline.com/doi/abs/10.1080/00423114.2012.725852
Deposited by: Berta Suárez
Deposited on: 25 Jun 2014 06:23
Last Modified: 15 Jun 2017 15:58
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