Analysis of design and performance of tram-train profiles for dual-operation running

Abstract

This article explores the design of a new wheel profile which can be used in a tram-train vehicle. A tram-train is a dual-mode vehicle that operates on two very different railway infrastructures: as a tram on light rail infrastructure and as a conventional train on heavy rail infrastructure. The challenges of wheel–rail interface have been highlighted and discussed, and the analysis and design process required to develop an optimised wheel profile for dual-operation running have been presented. One of the key issues in developing a dual-operation wheel profile was managing the contact conditions within the wheel–rail interface. The interface is critical not only to the safe running of the vehicle but also to maximise asset life and to minimise wheel–rail damage. A combination of vehicle dynamic simulations and bespoke software was used to allow the development of a new wheel profile for tram-train operations.

Keywords

Tram-train wheel–rail interaction wheel–rail profiles train dynamics simulation rolling contact fatigue wear

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References

Duewag drawing No. 3-D-02-Y-09006320, Sheffield Supertram Wheel Tyre, 1992.

Railway applications – track – special purpose rail – grooved and associated construction. BS EN 14811:2006+A1:2009, 2009.

Railway applications – track – rail – part 4: Vignole railway rails from 27 kg/m to, but excluding 46 kg/m. EN 13674-4:2006+A1:2009, 1992.

Rail Safety and Standards Board. Railway wheelsets, GM/RT2466, 2012.

Railway applications – track – rail – part 1: vignole railway rails 46 kg/m and above. BS EN 13674-1:2003+A1:2007, 2007.

Allen

. Support for the introduction of tram-train vehicles on network rail infrastructure. RTU report. 81/13, Issue 2, 2008.

McEwan

Harvey

. Technical memorandum – interpretation of wheel wear numbers. British Rail Research report. TM-VDY-004, RSSB Spark www.sparkrail.org, 1986.

DeltaRail Group Ltd. VAMPIRE help manual. Version v6.40. Derby, UK: DeltaRail Group Ltd, 2016.

UIC. A survey of current wheel and rail interface design and management practices. UIC Documentation Centre Database (Raildoc) 2005.

10.

Iwnicki SI. Handbook of railway vehicle dynamics. Boca Raton, FL, USA: CRC Press, 2006. ISBN 0-8493-3321-0.

11.

Allen

Bevan

. Determination of tramyway wheel and rail profiles to minimise derailment. RTU report. 90/3/A, 2008. Office of Road and Rail website http://orr.gov.uk/__data/assets/pdf_file/0004/4387/sres-RTU-rep_90_3A_iss1.pdf.

12.

Ringsberg

. Cyclic ratchetting and failure of a pearlitic rail steel. Fatigue Fracture Eng Mater Struct 2000; 23: 747–758.

13.

Beynon

Garnham

Sawley

. Rolling contact fatigue of three pearlitic rail steels. Wear 1996; 192: 94–111.

14.

Sinclair

Allery

MBP

. Development of a failure parameter for rail squats. British Rail Research Report TM MF 211 RSSB Spark www.sparkrail.org, 1991.

15.

Pearce

. Derivation of conicity and contact angle parameter from rolling radius difference and contact angle difference graphs. British Rail Research RSSB Spark www.sparkrail.org, 1993.

16.

Transportation Research Board. Track design handbook for light rail transit. 2nd ed., 2012. Washington, DC, USA: Transportation Research Board, ISBN 978-0-309-25824-1.

17.

Regulations on the Guidance of Rail Vehicles in accordance with the German Federal Regulations on the Construction and Operation of Light Rail Transit Systems (BOStrab) – Guidance Regulations (SpR), March 2004, English translation by J Snowden September 2008.

18.

Network Rail. Inspection and repair to reduce the risk of derailment at switches. NR/L2/TRK/0053, Issue 5, 2008.

19.

Railway applications – track – switches and crossings – part 9: layouts, BS EN 13232-9:2006+A1:2011, 2011.

20.

Burstow

. Whole life rail model application and development for RSSB – development of an RCF damage parameter. AEA technology rail report. AEATR-ES-2003-832, Issue 1, RSSB Spark www.sparkrail.org, 2003.

21.

Burstow

. Whole life rail model application and development for RSSB – continued development of an RCF damage parameter. AEA technology rail report. AEATR-ES-2004-880, Issue 2, RSSB Spark www.sparkrail.org, 2004.