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Descripción
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| One of the phenomena that limit the velocity of trains in high speed lines is the socalled ?ballast pick-up?. It is a ballast train-induced-wind erosion (or BATIWE) that can produce damage to the train underbody and the infrastructure surrounding the tracks. The analysis of the measurements taken during several passes of the train allows for a criterion of ballast flight initiation to be obtained. The first rotation of a ballast stone occurs when the impulse given to the stone (arising from the aerodynamic loading produced by the wind gust generated by the passing train) overpasses a critical impulse. This impulse depends on the physical properties of the stone (mass, shape, moment of inertia, etc. ?) and its posture on the track bed. The aim of this paper is to report on the experimental results obtained in the ADIF?S Brihuega (Guadalajara) test station, in the Madrid to Barcelona high speed line, and the way they can be used to support the feasibility of the definition of a criterion to evaluate the BATIWE capability of trains. The results obtained show the feasibility of the proposed method, and contribute to a method of BATIWE characterization, which can be relevant for the development of train interoperability standardization. | |
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Internacional
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Si |
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ISSN o ISBN
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978-1-905088-52-2 |
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Entidad relacionada
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Civil-Comp Press |
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Nacionalidad Entidad
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REINO UNIDO |
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Lugar del congreso
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Las Palmas de Gran Canarias |