Docquier, Nicolas
[UCL]
Fisette, Paul
[UCL]
Jeanmart, Hervé
[UCL]
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.
Bibliographic reference |
Docquier, Nicolas ; Fisette, Paul ; Jeanmart, Hervé. Multiphysic modelling of railway vehicles equipped with pneumatic suspensions. In: Vehicle System Dynamics : international journal of vehicle mechanics and mobility, Vol. 45, no. 6, p. 505-524 (2007) |
Permanent URL |
http://hdl.handle.net/2078.1/37554 |