Sensitivity analysis to assess the influence of the inertial properties of railway vehicle bodies on the vehicle’s dynamic behaviour

Suárez Esteban, Berta and Félez Mindán, Jesús and Maroto Ibáñez, Joaquín and Rodríguez, Pablo (2013). Sensitivity analysis to assess the influence of the inertial properties of railway vehicle bodies on the vehicle’s dynamic behaviour. "Vehicle System Dynamics", v. 51 (n. 2); pp. 251-279. ISSN 0042-3114. https://doi.org/10.1080/00423114.2012.725851.

Description

Title: Sensitivity analysis to assess the influence of the inertial properties of railway vehicle bodies on the vehicle’s dynamic behaviour
Author/s:
  • Suárez Esteban, Berta
  • Félez Mindán, Jesús
  • Maroto Ibáñez, Joaquín
  • Rodríguez, Pablo
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, mass, moment of inertia, centre of gravity, carbody, bogie, wheelset, safety, track fatigue, ride quality, standard EN-14363, leaflet UIC 518
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 inertial properties of railway vehicles on their dynamic behaviour. To do this, 216 dynamic simulations were performed modifying, one at a time, the masses, moments of inertia and heights of the centre of gravity of the carbody, the bogie and the wheelset. 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 for future simulations without appreciably affecting the simulation results. In general terms, it was concluded that the most sensitive inertial properties are the mass and the vertical moment of inertia, and the least sensitive ones the longitudinal and lateral moments of inertia.

More information

Item ID: 30257
DC Identifier: http://oa.upm.es/30257/
OAI Identifier: oai:oa.upm.es:30257
DOI: 10.1080/00423114.2012.725851
Official URL: http://www.tandfonline.com/doi/abs/10.1080/00423114.2012.725851
Deposited by: Berta Suárez
Deposited on: 25 Jun 2014 05:57
Last Modified: 22 Apr 2016 00:30
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