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Mostrando ítems 1-10 de 10
Artículo
Design and manufacture of a scaled railway track with mechanically variable geometry
(Nature, 2022)
The objective of this article is to present the design and manufacture of a scaled railroad track to be used as a laboratory track for the study of different railway applications. It could be a guideline for future laboratory ...
Tesis Doctoral
Multibody modeling of railway vehicles and experimental validation
(2016-04-22)
La tesis titulada “Multibody modeling of railway vehicles and experimental validation”, y realizada por Javier Fernández Aceituno, se centra en la comparación de simulaciones eficientes de vehículos ferroviarios en vías ...
Artículo
An alternative procedure to measure railroad track irregularities. Application to a scaled track
(Elsevier, 2019-04)
In this paper an alternative procedure to accurately measure static railroad track irregularities is proposed and applied to a scaled railroad track. The purpose of this work is the determination of highly-precise measured ...
Artículo
Analysis of the two-point wheel-rail contact scenario using the knife-edge-equivalent contact constraint method
(Elsevier, 2020-06)
This paper presents a rigid contact approach to analyse the two-point wheel-rail contact scenario using the simplified constraint-based contact method called Knife-edge Equivalent Contact method (KEC-method). The proposed ...
Artículo
Artificial neural networks applied to the measurement of lateral wheel-rail contact force: A comparison with a harmonic cancellation method
(Elsevier, 2020-11)
This paper presents a method for the experimental measurement of the lateral wheel-rail contact force based on Artificial Neural Networks (ANN). It is intended to demonstrate how an Artificial Intelligence (AI) method ...
Artículo
Railway multibody simulation with the knife-edge-equivalent wheel-rail constraint equations
(Springer, 2020-04)
This paper describes a new numerical procedure for the modelling and simulation of the wheel–rail contact in railway dynamic simulations. The method is called knife-edge-equivalent contact constraint method, or simply ...
Artículo
Multibody model of railway vehicles with weakly coupled vertical and lateral dynamics
(Elsevier, 2019-01)
In the field of railroad dynamics, multibody models used for on-board state observation, parameter identification and track geometry measurement must ensure a high computational efficiency, particularly when real-time ...
Artículo
Measurement of railroad track irregularities using an automated recording vehicle
(Elsevier, 2021-10)
This paper presents the design, construction and experimental validation of a scaled railway vehicle for the automated and quick survey of the geometry of an experimental scaled track. The method, that can be extended to ...
Artículo
Comparison of numerical and computational aspects between two constraint-based contact methods in the description of wheel/rail contacts
(Springer Science and Business Media B.V., 2022-03)
The numerical and computation aspects of the Knife-edge Equivalent Contact (KEC) constraint and lookup table (LUT) methods are compared in this paper. The LUT method implementation uses a penetration-based elastic contact ...
Artículo
Wheel-rail contact force measurement using strain gauges and distance lasers on a scaled railway vehicle
(Elsevier, 2020-04)
In this paper, a 1 : 10 scaled dynamometric wheelset is presented. It has been equipped with two different technologies: strain gauges and distance lasers. The first one is based on the measurement of the wheel deformation ...