Assessing crossing geometry
Expert tool for numerical and experimental assessment of turnout crossing geometry
J.J.J. Wegdam (TU Delft - Civil Engineering & Geosciences)
V. L. Markine – Mentor (TU Delft - Railway Engineering)
RPBJ Dollevoet – Graduation committee member (TU Delft - Railway Engineering)
A. Metrikine – Graduation committee member (TU Delft - Offshore Engineering)
X Liu – Graduation committee member (TU Delft - Railway Engineering)
I. Y. Shevtsov – Graduation committee member
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Abstract
This thesis project discusses the development of a fast assessment tool for the performance of railway turnout crossings. The assessment tool is developed in Matlab and allows the user to swiftly set up a model and assess the performance. The rail geometry input can be either design drawings or in situ measured geometry. This allows the user to compare designed, delivered and deployed crossings. Comparisons are made between several types of 1:9 crossings, by assessing the designs from various countries. The vehicle-track interaction is modelled in the commercial multi-body system (MBS) analysis package VI-Rail. The simulations indicate that the automated workflow provides insights similar to manual modelling, while being much faster. The report ends with recommendations based on the geometry comparisons and simulation results.