Examinando por Autor "Castaneda Heredia, Leonel Francisco"

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    Ítem
    Identification of the technical state of suspension elements in railway systems
    (TAYLOR & FRANCIS LTD, 2012-01-01) Mauricio Martinod, Ronald; Rene Betancur, German; Castaneda Heredia, Leonel Francisco; Universidad EAFIT. Departamento de Ingeniería Mecánica; Estudios en Mantenimiento (GEMI)
    The running safety and passenger comfort levels in a vehicle are tightly related to the technical state of the suspension elements. The technical state of the suspension depends of the service life time as its components become old and wear out. In this paper, a study on the dynamic behaviour of a railway vehicle is established in relation to the damping elements in one of its suspension stages. An experimental measurement model is developed, obtaining a set of useful signals for the identification of the dynamic parameters of the vehicle and developing a test through the application of the operational modal analysis technique, using least-squares complex exponential method as a basis to validate the numerical model of the multi-body system. Then, the study focuses on developing numerical simulations for the identification of the technical state of the dampers by the registration of dynamic variables under commercial service conditions and on estimating the state of the suspension elements. © 2012 Taylor & Francis.
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    Ítem
    Monitoreo Multidimensional de la condición –(MMC) basado en la descomposición en valores singulares –(SVD) Caso de estudio: Sistema Ferroviario*
    (Universidad EAFIT, 2007) Zoltowski, Bogdan; Castaneda Heredia, Leonel Francisco; Betancur Giraldo, Germán René; University of Technology and Life Sciences; Universidad EAFIT