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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 108

Sensitivity Analysis of Catenary Geometry for Current Collection Quality

O. Vo Van1,2, E. Balmes2,3, A. Capitaine4 and X. Lorang1

1Innovation and Research Department, SNCF, Paris, France
2Arts & Métiers ParisTech, France
3SDTools, Paris, France
4Project and Engineering, SNCF, Saint-Denis, France

Full Bibliographic Reference for this paper
O. Vo Van, E. Balmes, A. Capitaine, X. Lorang, "Sensitivity Analysis of Catenary Geometry for Current Collection Quality", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 108, 2016. doi:10.4203/ccp.110.108
Keywords: pantograph-catenary, maintenance policy, Sobol indices, global sensitivity analysis.

Summary
A global sensitivity analysis is performed for catenary parameters such as dropper lengths, height of the messenger wire at masts and mechanical tensions in the wires using the Sobol indices. All parameters are defined using experimental measurements. A set of geometric and dynamic criteria is selected as output and the contribution of the input parameters to the output variability is quantified. It is shown that the dynamic interaction is mainly sensitive to the mechanical tensions in contact and messenger wires whereas existing geometric criteria are mainly dependent on height of messenger wire at the masts. Moreover, selected geometric criteria available using geometry measurements are hardly correlated with dynamic criteria.

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