Computational fluid dynamics as a means of assessing the influence of aerodynamic forces on the mean contact force acting on a pantograph
| Autor: | Marco Carnevale, Alan Facchinetti, Luca Maggiori, Daniele Rocchi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Mechanical Engineering wind tunnel 020302 automobile design & engineering 02 engineering and technology Structural engineering Aerodynamics Computational fluid dynamics Contact force pantograph uplift Aerodynamic force 020303 mechanical engineering & transports 0203 mechanical engineering Computational fluid dynamics pantograph uplift wind tunnel aerodynamic tests Fluid dynamics Pantograph aerodynamic tests Virtual work business Wind tunnel |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 230:1698-1713 |
| ISSN: | 2041-3017 0954-4097 |
| DOI: | 10.1177/0954409715606748 |
| Popis: | This paper discusses the possibility of using computational fluid dynamics (CFD) to assess the influence of aerodynamic forces (aerodynamic uplift) on the mean contact force acting between a pantograph and the contact wire. The analysis consists of experimental tests and CFD simulations, performed in both wind tunnel and on-track scenarios. A method for the computation of the aerodynamic uplift and for the assessment of the contact force imbalance between the leading and trailing collectors is proposed. The method is based on the virtual work principle, and exploits both the numerical forces resulting from CFD analysis, and the Jacobian terms obtained from a kinematic analysis of the pantograph. The proposed model takes into account stationary phenomena, and it is fully validated by means of experimental results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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