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Aerodynamic optimisation of pantographs |
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evaluated |
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Pantographs account for some 8 % of the aerodynamic drag of a train and play an important role for noise emission. Pantograph optimisation is usually focussed on noise reduction rather than air drag.
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Technology field: Aerodynamics and friction
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General information
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Description
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The pantographs account for some 8 % of the aerodynamic drag of a train and play an important role for noise emission. Pantographs therefore present some optimisation potential. An R&D programme at DB AG is studying optimisation potential of high-speed pantographs by introducing single arm construction etc. However pantograph optimisation is usually focussed on the reduction of noise emission and contact force dynamics rather than air drag. The project "Actively controlled Single arm Pantograph (ASP)" by DB AG and Bombardier Transportation follows a different technological approach. At the heart of this development lies a control circuit influencing the movement of the pantograph by means of actuators in such a way that contact force fluctuation is minimised. The resulting pantograph will also show better aerodynamic behaviour. |
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General criteria
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Environmental criteria
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Economic criteria
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Application outside railway sector (this technology is railway specific)
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Overall rating
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date created: 2002-10-09 |
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© UIC - International Union of Railways 2003 |
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