Influence of the railway vehicle properties in the running safety against crosswinds

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

R. Heleno (Autor) Outra; P. A. Montenegro (Autor) Outra; H. Carvalho (Autor) Outra; D. Ribeiro (Autor) Outra; Rui Calçada (Autor) FEUP; C. J. Baker (Autor) Outra

Revista

Título: Journal of Wind Engineering and Industrial Aerodynamics

Vol. 217

Páginas: 1-15

ISSN: 0167-6105

Editora: Elsevier

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 19 Citações

Outras Informações

ID Authenticus: P-00V-A2Q

DOI: 10.1016/j.jweia.2021.104732

Abstract (EN): The aim of the present study consists of evaluating the influence of the most relevant geometric, mechanical and aerodynamic vehicle properties in the risk of derailment caused by crosswinds. To achieve this objective, a vehicle-structure interaction model is used to carry out non-linear dynamic analyses to assess the train-track coupling behaviour in the presence of winds. By computing the wheel-rail contact forces, the derailment risk is evaluated based on the unloading criterion, as suggested by the European Norm EN 14067-6 (2016), for several scenarios with different train and wind speeds. The wind is simulated with a stochastic model that allows the generation of turbulent wind time-histories based on power spectral density functions. The reference vehicle adopted in this work corresponds to the European InterCity Express 3 (ICE-3) train, whose original properties were parameterized in order to evaluate their influence in the vehicle's stability. The parametric study focused on several properties of the vehicle, namely the carbody mass, height of the gravity centre, aerodynamic coefficients, and stiffness and damping of the suspensions. Apart from the suspensions' properties, which prove to have a negligible influence in the vehicle's stability, the remaining parameters have a significant impact in the running safety against crosswinds.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15