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Evaluation of passive and mechatronic steering systems for three-axle locomotive bogies by means of multibody simulations
TU Berlin.
Politecnico Milano.
Politecnico Milano.
Politecnico Milano.
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2019 (English)In: Proceedings of the 11th International conference on railway bogies and running gears, 2019Conference paper, Published paper (Refereed)
Abstract [en]

In a recent study, concepts were identified and examined that allow heavy-haul locomotive bogies to reduce various wheel and track deterioration in operation. The behaviour of a CoCo Locomotive with passive and active radial steering bogies was evaluated using multibody simulations and compared with the original existing vehicle with rigid axles. The chosen concepts were the following: passive steering using mechanical linkages (EMD), passive hydraulic steering (PHS), active steering using Secondary Yaw Control (SYC), active hydraulic steering (AHS) and self-steering secondary yaw control (SS-SYC).In this analysis, many running conditions were considered, straight track and curves down to 250 m radius with track irregularities according to the standard DIN EN 14363 [1]. Various non-compensated lateral accelerations and presumed friction levels were chosen as input parameters to cover a wide range of operating conditions in order to estimate the benefits of these solutions over the life cycle of the vehicle. As it is a locomotive, traction was also included in some simulation scenarios.A comparative assessment of the track-friendliness was performed, considering a variety of track layouts (represented by diverse mixes of straight track sections and curved track sections with different curvatures) and operation scenarios. Track loading was assessed considering four performance indexes: track component fatigue, track settlement, rail/wheel wear and RCF accumulation.The investigation evinced significant reduction of wheel/rail wear especially for the EMD, AHS and SS-SYC concepts. Due to reduced primary suspension stiffness, the EMD, PHS and SS-SYC solutions provide lower track component fatigue. The presence of traction increases wear and RCF, but the EMD, AHS and SS-SYC bogies still provide significant benefits compared to the original locomotive.

Place, publisher, year, edition, pages
2019.
Keywords [en]
3-axle bogie, vehicle dynamics, track-friendliness
National Category
Vehicle Engineering
Research subject
Vehicle and Maritime Engineering
Identifiers
URN: urn:nbn:se:kth:diva-266339OAI: oai:DiVA.org:kth-266339DiVA, id: diva2:1383283
Conference
BOGIE '19 - The 11th International Conference on Railway Bogies and Running Gears, Budapest, 9-12 September, 2019
Projects
DYNAFREIGHT
Funder
EU, Horizon 2020, 730811
Note

QC 20200122

Available from: 2020-01-07 Created: 2020-01-07 Last updated: 2020-01-22Bibliographically approved

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Krishna, Visakh V

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CiteExportLink to record
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