Multiphysic modelling of railway vehicles equipped with pneumatic suspensions
(2007) Vehicle System Dynamics : international journal of vehicle mechanics and mobility — Vol. 45, n° 6, p. 505-524 (2007)
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- Abstract
- This article presents a multidisciplinary approach of railway pneumatic suspension modelling: both multibody and pneumatic aspects are taken into account. The work aims at obtaining a realistic model of the secondary suspension and coupling it with a multibody model of a train. Various components of the pneumatic circuit such as bellows, tanks, pipes and valves are taken into account. The article focuses on the bellow - pipe - tank subsystem for which several modelling approaches are presented and compared. Differences between differential and algebraic models are highlighted, and an application-dependent choice between them is suggested. A complete model of the pneumatic circuit is then obtained and coupled with a multibody model of the train. As a result, the behaviour of a suburban train equipped with a pneumatic secondary suspension is analysed, in particular undesired oscillating motions which affect the comfort. Topological modifications and improvements of the suspension are also investigated and discussed.
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Citations
Docquier, N., Fisette, P., & Jeanmart, H. (2007). Multiphysic modelling of railway vehicles equipped with pneumatic suspensions. Vehicle System Dynamics : international journal of vehicle mechanics and mobility, 45(6), 505-524. https://doi.org/10.1080/00423110601050848 (Original work published 2007)