Fecha
2025-08-04
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info:eu-repo/semantics/embargoedAccess
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Elsevier
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Resumen
Multibody simulations are a useful tool for studying railway dynamics in different conditions, as they eliminate the need for expensive tests using actual rolling stock. This paper presents a multibody model of an articulated high-speed train with shared bogies, comprising eight passenger cars and nine bogies, that is implemented in Universal Mechanism. The train's critical speed under nominal conditions is determined by the presence of limit cycles in the wheelsets' phase plane of lateral motion and by the standard deviation of their lateral displacement. A sensitivity study is then performed to examine the impact of secondary suspension stiffness and intercar link damping on lateral stability at speeds between 250 km/h and 450 km/h. The horizontal stiffness of the secondary suspension significantly affects the critical speed, making the central cars of the train more prone to oscillations. Conversely, the vertical stiffness of air springs and the damping of intercar dampers have a minimal effect on the train's critical speed. The proposed model is a first step in developing the digital twin of a high-speed train.
Descripción
This is the accepted manuscript of the article. The registered version was first published in Mechanism and Machine Theory, Volume 215, 2025, 106167, is available online at the publisher's website: https://doi.org/10.1016/j.mechmachtheory.2025.106167
Este es el manuscrito aceptado del artículo. La versión registrada fue publicada por primera vez en Mechanism and Machine Theory, Volume 215, 2025, 106167, está disponible en línea en el sitio web del editor: https://doi.org/10.1016/j.mechmachtheory.2025.106167
MC4.0 PID2020-116984RB-C21 y MC4.0 PID2020-116984RB-C22 del Gobierno de España a través de MCIN/AEI/10. 13039/501100011033. Diagnosis inteligente de componentes críticos ferroviarios, financiado por “Ayudas a Investigadores Tempranos UNED-Santander 2024”
Este es el manuscrito aceptado del artículo. La versión registrada fue publicada por primera vez en Mechanism and Machine Theory, Volume 215, 2025, 106167, está disponible en línea en el sitio web del editor: https://doi.org/10.1016/j.mechmachtheory.2025.106167
MC4.0 PID2020-116984RB-C21 y MC4.0 PID2020-116984RB-C22 del Gobierno de España a través de MCIN/AEI/10. 13039/501100011033. Diagnosis inteligente de componentes críticos ferroviarios, financiado por “Ayudas a Investigadores Tempranos UNED-Santander 2024”
Categorías UNESCO
Palabras clave
multibody system dynamics, high-speed train, vehicle stability dynamics, numerical simulation
Citación
Alejandro Bustos, Higinio Rubio, Cristina Castejon, Juan Carlos Garcia-Prada, Effect of the secondary suspension and intercar links on the performance of a high-speed train, Mechanism and Machine Theory, Volume 215, 2025, 106167, ISSN 0094-114X, https://doi.org/10.1016/j.mechmachtheory.2025.106167
Centro
E.T.S. de Ingenieros Industriales
Departamento
Mecánica