1–20 of 43 hits
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    Effects of polarity on the friction and wear of collector shoes deployed in a metro traction system

    Dong, Lin / Zhong, Wen / Chen, Guang Xiong et al. | Tema Archive | 2014
    The effects of current density and polarity on the tribology characteristics of the contact between an aluminium/stainless steel composite ...

    An investigation into the use of asphalt layers to control stress and strain levels in railway track foundations

    Esmaeili, Morteza / Amiri, Saeed / Jadidi, Kazem | Tema Archive | 2014
    depend on various parameters such as the manner of operation of the railway and the mechanical characteristics of the foundations. This study is ...

    Simulation study of thermally initiated rail defects

    Scott, D. / Fletcher, D.I. / Cardwell, B.J. | Tema Archive | 2014
    vehicles with modern AC traction characteristics as a common theme found only on problem lines. Metallurgical analysis of the defects found that ...

    Finite element modeling and validation of the fastening systems and concrete sleepers used in North America

    Chen, Zhe / Shin, Moochul / Wei, Sihang et al. | Tema Archive | 2014
    increasing existing demands on fastening systems and concrete sleepers. Consequently, there is a strong need to better understand the response of ...

    Substitution of corrugated sheets in a railway vehicle's body structure by a multiple-requirement based selection process

    Wennberg, David / Stichel, Sebastian / Wennhage, Per | Tema Archive | 2014
    Sandwich panels are a good construction element if used in the right way. Herein, they have reduced the weight of the car body by 600-700 ...

    Effect of head wear and lateral forces on underhead radius crack propagation

    Ranjha, Sagheer Abbas / Mutton, Peter / Kapoor, Ajay | Tema Archive | 2014
    This paper investigated the effect of rail head wear (HW) and lateral forces on underhead radius stress conditions and resulting stress ...

    Rail squats: Progress in understanding the Australian experience

    Daniel, William J.T. / Pal, Sarvesh / Farjoo, Mohammadali | Tema Archive | 2013
    summarised in this section. The exact conditions of temperature and pressure under which a WEL (white etching layer) can form on the surface of a ...

    Development of a unified railway track stability management tool to enhance track safety

    Ahmad, Shah Sanjar / Mandal, Nirmal K. / Chattopadhyay, Gopinath et al. | Tema Archive | 2013
    . (3) Depending on the orientation of the rail and exposure to the sun, the maximum rail temperature can be lower than the established ...

    Studs: a squat-type defect in rails

    Grassle, S.L. / Fletcher, D.I. / Gallardo Hernandez, E.A. et al. | Tema Archive | 2012
    2006, there were about 600 of these and they had become the Underground's single most common rail defect. This defect occurred almost ...

    Investigation of the behaviour of selected ultrasonic guided wave modes to inspect rails for long-range testing and monitoring

    Gharaibeh, Y. / Sanderson, R. / Mudge, P. et al. | Tema Archive | 2011
    Long-range ultrasonic testing uses guided waves in the kilohertz range to inspect many metres of an elongated component from a single point ...

    Ultrasonic measurement of railway wheel hub-axle press-fit contact pressures

    Marshall, M.B. / Lewis, R. / Dwyer-Joyce, R.S. et al. | Tema Archive | 2011
    Railway wheels are secured onto the axle by means of an interference fit. The wheel is either shrink fitted or press fitted onto a pre ...

    Field investigations into the adhesion recovery in leaf-contaminated wheel-rail contacts with locomotive sanders

    Arias-Cuevas, O. / Li, Z. | Tema Archive | 2011
    Locomotives of railways world-wide have been using sand since 1838 to improve the wheel-rail adhesion during traction and braking ...

    Optimization of a wheel profile accounting for design robustness

    Markine, V.L. / Shevtsov, I.Y. | Tema Archive | 2011
    The article describes a numerical procedure for optimum design of a railway wheel profile. The optimisation performed using the optimality ...

    Characterization of aeronautical engine parts welded with capacitor discharge welding technology

    Palano, F. / Panella, F.W. / Dattoma, V. | Tema Archive | 2010
    for compressor and turbine applications. The CDW process is a resistance welding technology; it makes use of high-intensity current pulses ...

    Numerical analysis of unsteady cavitating flow in an axial inducer

    Campos-Amezcua, R. / Kehelladi, S. / Bakir, F. et al. | Tema Archive | 2010
    of an aircraft inducer. Cavitating flow in the venturi exhibited the instability due to detachment of cavitation sheet in a static geometry ...

    Mapping railway wheel material wear mechanisms and transitions

    Lewis, R. / Dwyer-Joyce, R.S. / Olofsson, U. et al. | Tema Archive | 2010
    of the wear mechanisms and transitions occurring in wheel steels is needed, particularly at higher load and slip conditions. The aim of this ...

    Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing

    Gianni, A. / Ghidini, A. / Karlsson, T. et al. | Tema Archive | 2009
    compared with conventional pearlitic steel wheels. To improve the wear characteristics, the manufacturing process of bainitic materials needs to be ...

    A parametric study of the effects of freight vehicles on rolling contact fatigue of rail

    Tunna, J. / Urban, C. | Tema Archive | 2009
    The steering forces between the rail and wheels of freight vehicles can cause RCF (rolling contact fatigue) of the rail under normal ...

    Competition between wear and rolling contact fatigue at the wheel-rail interfaces some experimental evidence on rail steel

    Donzella, G. / Mazzu, A. / Petrogalli, C. | Tema Archive | 2009
    Recent studies of the rail-wheel interface have shown that wear and RCF (rolling contact fatigue) are competitive phenomena. Wear, by ...

    Some comments on stress intensity factor calculation using different mechanisms and procedures for rolling contact fatigue cracks

    Akama, M. / Nagashima, T. | Tema Archive | 2009
    Recently, attempts have been underway to simulate RCF (rolling contact fatigue) crack growth in the railhead, including also the effect of ...