Influence of Heat Transfer on Railway Pneumatic Suspensions Dynamics
(2009) 21th IAVSD Symposium on Dynamics of Vehicles on Roads and Tracks — Location: Stockholm, Sweden (17.August.2009)
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- Abstract
- This paper deals with the modelling of railway pneumatic suspension which is commonly used as the secondary suspension on passenger trains and involves a set of various pneumatic components such as tanks, pipes and valves. It focuses on the analysis of the heat transfer between the suspension system and the atmosphere and investigates its influence on the vehicle behaviour. First, pneumatic component models are presented and it is explained how the heat exchanges are taken into account. Then, the system composed of an airspring connected to an auxiliary tank is analysed and it is shown how the dynamic stiffness is affected by the heat transfer. Finally, a metro car is analysed for a stationary twist test called Q=Q and a curve entry which show discrepancies between adiabatic and isotherm cases in term of safety, dynamics and air consumption.
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Citations
Docquier, N., Fisette, P., & Jeanmart, H. (2009). Influence of Heat Transfer on Railway Pneumatic Suspensions Dynamics. 21th IAVSD Symposium on Dynamics of Vehicles on Roads and Tracks, Stockholm, Sweden. https://hdl.handle.net/2078.5/230559