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F. Vesali, T. Nickel, "A Study of the effect of contact wire curve on dropper static force and the contact quality of the pantograph and catenary at the overlap section", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 4.18, 2022, doi:10.4203/ccc.1.4.18

Keywords: pantograph, overhead catenary, dropper static load, wave propagation, wave reflection, contact quality.

Abstract

The interaction of pantograph and catenary is one of the crucial topics in train and infrastructure interaction, in particular when the new EMUs (Electric Multiple Units) are using multiple pantographs. One important parameter in the design of overhead contact line is the curve of contact wire. The curve of contact wire is defined by adjusting the length and consequently the static force (dead load) of droppers. Therefore, calculating the required dead load of droppers to achieve the demanded profile of contact wire, is a crucial step in any simulation model of pantographcatenary interaction. In this study a precise analytical model of overhead catenary and pantograph has been developed and the effect of contact wire cure in the overlap section on the wave propagation in the mechanical section has been analysed. The study has focused on the German standard catenary and the results shows that abnormal static force in droppers between overlap point and tension wheel, can reduce the contact quality up to 20%.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 4.18 A Study of the effect of contact wire curve on dropper static force and the contact quality of the pantograph and catenary at the overlap section F. Vesali1 and T. Nickel2 1PANTOhealth GmbH, Berlin, Germany 2DB Netz AG, Germany doi:10.4203/ccc.1.4.18 Full Bibliographic Reference for this paper F. Vesali, T. Nickel, "A Study of the effect of contact wire curve on dropper static force and the contact quality of the pantograph and catenary at the overlap section", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 4.18, 2022, doi:10.4203/ccc.1.4.18 Keywords: pantograph, overhead catenary, dropper static load, wave propagation, wave reflection, contact quality. Abstract The interaction of pantograph and catenary is one of the crucial topics in train and infrastructure interaction, in particular when the new EMUs (Electric Multiple Units) are using multiple pantographs. One important parameter in the design of overhead contact line is the curve of contact wire. The curve of contact wire is defined by adjusting the length and consequently the static force (dead load) of droppers. Therefore, calculating the required dead load of droppers to achieve the demanded profile of contact wire, is a crucial step in any simulation model of pantographcatenary interaction. In this study a precise analytical model of overhead catenary and pantograph has been developed and the effect of contact wire cure in the overlap section on the wave propagation in the mechanical section has been analysed. The study has focused on the German standard catenary and the results shows that abnormal static force in droppers between overlap point and tension wheel, can reduce the contact quality up to 20%. download the full-text of this paper (PDF, 5 pages, 593 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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