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M. Carnevale, A. Facchinetti, D. Rocchi, "Assessing Aerodynamic Effects on a Railway Pantograph by means of Computational Fluid Dynamics", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 113, 2016. doi:10.4203/ccp.110.113

Keywords: computational fluid dynamics, pantograph contact force, wind tunnel, aerodynamic tests, vortex shedding.

Summary

This paper investigates the aerodynamic forces acting on a railway pantograph, and their influence on the contact force. The analysis is carried out both by means of wind tunnel and on-track experimental tests as well as computational fluid dynamics (CFD). The CFD model is fully validated, both in the wind tunnel and on-track scenarios, through the experimental results.

The focus is initially on the effects of stationary forces on the mean contact force, that greatly affect the pantograph performance and depend on the pantograph orientation. As a second step, the effects of non-stationary forces on the variability of contact force and contact losses are analysed. Two phenomena are considered: the influence of aerodynamics in the 0-20 Hz range, normally used for the assessment of the quality of current collection, and the excitation of pantograph collectors at higher frequencies (70-300 Hz) related to vortex shedding.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 113 Assessing Aerodynamic Effects on a Railway Pantograph by means of Computational Fluid Dynamics M. Carnevale, A. Facchinetti and D. Rocchi Department of Mechanical Engineering, Politecnico di Milano, Italy doi:10.4203/ccp.110.113 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Carnevale, A. Facchinetti, D. Rocchi, "Assessing Aerodynamic Effects on a Railway Pantograph by means of Computational Fluid Dynamics", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 113, 2016. doi:10.4203/ccp.110.113 Keywords: computational fluid dynamics, pantograph contact force, wind tunnel, aerodynamic tests, vortex shedding. Summary This paper investigates the aerodynamic forces acting on a railway pantograph, and their influence on the contact force. The analysis is carried out both by means of wind tunnel and on-track experimental tests as well as computational fluid dynamics (CFD). The CFD model is fully validated, both in the wind tunnel and on-track scenarios, through the experimental results. The focus is initially on the effects of stationary forces on the mean contact force, that greatly affect the pantograph performance and depend on the pantograph orientation. As a second step, the effects of non-stationary forces on the variability of contact force and contact losses are analysed. Two phenomena are considered: the influence of aerodynamics in the 0-20 Hz range, normally used for the assessment of the quality of current collection, and the excitation of pantograph collectors at higher frequencies (70-300 Hz) related to vortex shedding. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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