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Recenzirano
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Neto, José; Montenegro, Pedro Aires; Vale, Cecília; Calçada, Rui
International journal of rail transportation (Online), 05/2021, Letnik: 9, Številka: 3Journal Article
In this paper, a numerical study regarding the influence of the wind speed and orientation on the train running safety against crosswinds is presented. The wind profiles are defined through the Chinese Hat Model taking into account multiple combinations of vehicle speed, wind speed and wind orientation, resulting in 180 dynamic analyses solved using an in-house developed software named Vehicle-Structure Interaction analysis (VSI). The running safety is evaluated by analysing three safety criteria based on factors related to the vehicle contact forces: the Nadal criterion, the Prud'Homme criterion and the Unloading criterion. Moreover, the behaviour of the vehicle undergoing different wind profiles is assessed throughout a 1400 m straight track section with real irregularities of one of the Portuguese Railway Line. The results reveal that both the wind speed and orientation have a preponderant impact on the vehicle running safety, contrary to the vehicle speed which influence is minor.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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