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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
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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