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Thermal capacity of tread-braked railway wheels. Part 1: Modelling

Shahab Teimourimanesh (Institutionen för tillämpad mekanik, Dynamik) ; Tore Vernersson (Institutionen för tillämpad mekanik, Dynamik) ; Roger Lundén (Institutionen för tillämpad mekanik, Dynamik)
Proceedings of the Institution of Mechanical Engineers Part F-Journal of Rail and Rapid Transit (0954-4097). Vol. 230 (2016), 3, p. 784-797.
[Artikel, refereegranskad vetenskaplig]

Tread brakes are still a common frictional braking system used on metro and suburban trains. Here the wheels are safety-related components and there is a need to develop design specifications and guidelines to ensure that the wheels perform properly under the service conditions to which they are exposed. In the present paper, a model is proposed and developed that represents typical conditions in metro and suburban operations, in particular during sequential stop braking. The analysis also considers drag braking, mechanical loading, residual stresses and wheel-axle interference fit. Finite element modelling, with an advanced temperature-dependent material model, together with a fatigue analysis is employed to quantify the wheel's performance. An application example demonstrates the method for a typical metro wheel. In a companion paper, further applications are presented that demonstrate important aspects of the thermal capacity of tread-braked railway wheels.

Nyckelord: Railway tread braking, railway wheel, metro train, stop braking, finite element analysis, fatigue, FATIGUE BEHAVIOR, TEMPERATURES, BRAKING, CONTACT, AXLES, TRAIN, Engineering, Civil, Engineering, Mechanical, Transportation Science &, Technology, ONE DH, 1994, PROCEEDINGS OF THE 1994 ASME/IEEE JOINT RAILROAD CONFERENCE, IN



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Denna post skapades 2016-03-23.
CPL Pubid: 233618

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Dynamik

Ämnesområden

Transport
Transportteknik och logistik

Chalmers infrastruktur