Analysis of the overlap section in a high-speed railway catenary by means of numerical simulations
| Autor: | S. Gregori, J. Gil, F. J. Fuenmayor, J. E. Tarancón, M. Tur |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Overlap section
Tensioning device Cantilever Railway catenary Computer science business.industry INGENIERIA MECANICA Work (physics) 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Structural engineering Bayesian optimisation Standard deviation 0201 civil engineering Multiple pantograph operation Electric power transmission Section (archaeology) 021105 building & construction Catenary Pantograph business Contact wire Civil and Structural Engineering |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| Popis: | [EN] The transition between catenary tensioning sections is accomplished smoothly by overlapping a number of spans in each catenary section. This work presents an analysis of the overlap section in a high-speed railway catenary based on numerical simulations. The paper studies the influence on the system¿s dynamic behaviour of features such as double cantilevers and tensioning devices efficiency. Four and five-span overlaps are compared and the effect of train speed and overlap contact wire geometry are also analysed. Finally, an entire catenary section is optimised by Bayesian Optimisation techniques, leading to a catenary configuration with an interaction force with a standard deviation notably lower than that provided by the nominal catenary design. The authors would like to acknowledge the financial support received from the Regional Government of Valencia (PROMETEO/2016/007) and the Spanish Ministry of Economy, Industry and Competitiveness (TRA2017-84736-R). The funds received jointly from the Regional Government of Valencia and the European Social Fund under Grant APOSTD/2019/205 are also acknowledged. The authors wish to express their gratitude for the comments and useful information provided by Jose Antonio Martinez Lopez and the `Sociedad Espanola de Montajes Industriales' (SEMI Group). |
| Databáze: | OpenAIRE |
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