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Multi-objective design optimisation of transition zones between different railway track forms
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. Swedish Transport Administration, Solna, SE-171 54, Sweden.ORCID iD: 0000-0002-8926-2140
2018 (English)In: Proceedings of the 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems, CM 2018, TU Delft , 2018, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

The vertical dynamic interaction between vehicle and railway track is simulated in the time domain using an extended state space vector approach. The track model includes a transition zone between slab track on a bridge and ballasted track on an embankment. By considering a multi-objective optimisation problem, solved using a genetic algorithm, selected vehicle and track responses are simultaneously minimised by optimising the distributions of rail pad stiffness and sleeper spacing in the transition zone. It is shown that the magnitudes of the maximum dynamic loads in the optimised transition zone can be reduced to be similar as the magnitudes far away from the transition zone.

Place, publisher, year, edition, pages
TU Delft , 2018. p. 1-6
Keywords [en]
Genetic algorithm., Optimisation, Railway track transitions, Slab track, Transition zone, Vehicle-track interaction
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-241879Scopus ID: 2-s2.0-85059534739ISBN: 9789461869630 (print)OAI: oai:DiVA.org:kth-241879DiVA, id: diva2:1282629
Conference
11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018, Delft, Netherlands, 24 September 2018 through 27 September 2018
Note

QC 20190125

Available from: 2019-01-25 Created: 2019-01-25 Last updated: 2019-01-25Bibliographically approved

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Andersson, Andreas

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