1–50 of 73 hits
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    Evaluation of the influential parameters contributing to the reconstruction of railway wheel defect signals

    Free access
    Alemi, Alireza / Corman, Francesco / Pang, Yusong et al. | SAGE Publications | 2020
    A wheel impact load detector is used to assess the condition of a railway wheel by measuring the dynamic forces generated by defects. This ...

    Lightweighting of railway axles for the reduction of unsprung mass and track access charges

    Free access
    Mistry, PJ / Johnson, MS | SAGE Publications | 2020
    The potential for lightweighting of railway axles was investigated to primarily reduce the unsprung mass of rail vehicles. The reduction of ...

    Evaluation of air quality at the Birmingham New Street Railway Station

    Free access
    Hickman, AL / Baker, CJ / Cai, X et al. | SAGE Publications | 2018
    made at the Birmingham New Street station, a major rail interchange in the Midlands of England, with a mix of diesel and electric train ...
    Keywords: oxides of nitrogen

    A review of the technological developments for interlocking at level crossing

    Free access
    Fayyaz, Muhammad Asad Bilal / Alexoulis-Chrysovergis, Aris C / Southgate, Matthew J et al. | SAGE Publications | 2021
    A Level Crossing remains as one of the highest risk assets within the railway system often depending on the unpredictable behaviour of road ...

    A vision for a lightweight railway wheelset of the future

    Free access
    Bruni, Stefano / Mistry, Preetum J / Johnson, Michael S et al. | SAGE Publications | 2022
    Rail vehicle lightweighting using fibre reinforced polymer composite materials is essential for the future of rail. This is recognised as a ...

    Estimating the relative cost of track damage mechanisms: combining economic and engineering approaches

    Free access
    Smith, Andrew / Iwnicki, Simon / Kaushal, Aniruddha et al. | SAGE Publications | 2017
    This paper proposes a new, two-stage methodology to estimate the relative marginal cost of different types of vehicles running on the rail ...

    Acoustic roughness measurement of railway tracks: Implementation of an optical measurement approach & possible improvements to the standard

    Free access
    Mauz, Florian / Wigger, Remo / Wahl, Tobias et al. | SAGE Publications | 2022
    The measure for assessing the acoustic quality of the rail surfaces, the acoustic roughness, is defined in the EN 15610 standard. It is ...

    Improving the performance of finite element simulations on the wheel–rail interaction by using a coupling strategy

    Free access
    Ma, Yuewei / Markine, Valeri L / Mashal, Abdul Ahad et al. | SAGE Publications | 2018
    Over the past few years, a number of implicit/explicit finite element models have been introduced for the purpose of tackling the problems ...

    An integrated numerical framework to investigate the running safety of overlong freight trains

    Free access
    Krishna, Visakh V / Jobstfinke, Daniel / Melzi, Stefano et al. | SAGE Publications | 2021
    Long freight trains up to 1500 m in length are currently not in regular operation in Europe. One of the important reasons for the same is ...

    Studying the transfer mechanisms of water based top-of-rail products in a wheel/rail interaction

    Free access
    Lee, Zing Siang / Trummer, Gerald / Harmon, Matthew et al. | SAGE Publications | 2024

    The railway industry uses top-of-rail products to control and manage the friction in the wheel/rail interface to help ensure efficient

     ...
    Keywords: Top-of-rail friction modifiers

    Assessing the effectiveness of traction gels using full-scale and field testing

    Free access
    White, Ben / Hyland-Knight, Jack / Lewis, Roger | SAGE Publications | 2021
    network as a result. This work developed a range of full-scale laboratory and field tests that can be used to assess traction gel performance. The ...

    A computational fluid dynamics study of the influence of sleeper shape and ballast depth on ballast flight during passage of a simplified train

    Free access
    Pardoe, Lee / Powrie, William / Hu, Zhiwei | SAGE Publications | 2024

    The paper assesses the effect on the air flow regime underneath a simplified high-speed train of changing the ballast depth and the

     ...

    A risk-informed decision support tool for the strategic asset management of railway track infrastructure

    Free access
    Sasidharan, Manu / Burrow, Michael Peter Nicholas / Ghataora, Gurmel Singh et al. | SAGE Publications | 2022
    The provision of safe, efficient, reliable and affordable railway transport requires the railway track infrastructure to be maintained to ...

    Use cases for obstacle detection and track intrusion detection systems in the context of new generation of railway traffic management systems

    Free access
    Hyde, Paul / Ulianov, Cristian / Liu, Jin et al. | SAGE Publications | 2022
    In this paper, the concept of Obstacle Detection and Track Intrusion Detection (OD&TID) systems related to the operation of trains is ...

    A review of key planning and scheduling in the rail industry in Europe and UK

    Free access
    Turner, Christopher / Tiwari, Ashutosh / Starr, Andrew et al. | SAGE Publications | 2016
    techniques over the last 25 years. Increasingly, the use of computational intelligence in such tasks is featuring more heavily in research ...

    An efficient physical-based method for predicting the long-term evolution of vertical railway track geometries

    Free access
    Kumar, Nishant / Kossmann, Claudia / Scheriau, Stephan et al. | SAGE Publications | 2022
    settlement. If these local settlements vary along the track, geometric irregularities develop further amplifying the dynamic loading of the track ...

    Improving the reliability and availability of railway track switching by analysing historical failure data and introducing functionally redundant subsystems

    Free access
    Bemment, Samuel D / Goodall, Roger M / Dixon, Roger et al. | SAGE Publications | 2018
    , the aeronautical and nuclear industries. This paper models the adoption of a functional redundancy approach to the functional subsystems of ...

    Review of the existing energy labelling systems and a proposal for rail vehicles

    Free access
    Liu, Zhendong / Berg, Mats / Bustad, Tohmmy | SAGE Publications | 2021
    energy labelling systems to have their products included. Globally, the transport sector consumes a great proportion of energy and is responsible ...

    Life cycle cost analysis for the top-of-rail friction-modifier application: A case study from the Swedish iron ore line

    Free access
    Khan, Saad Ahmed / Lundberg, Jan / Stenström, Christer | SAGE Publications | 2021
    The application of top-of-rail friction modifiers (TOR-FMs) is claimed by their manufacturers as a well-established technique for ...

    Experimental analysis of railway track settlement in transition zones

    Free access
    Wang, Haoyu / Markine, Valeri / Liu, Xiangming | SAGE Publications | 2018
    stiffness and settlement in the open track and the engineering structure resulting in the dynamic amplification of the wheel forces, track ...

    Track and catenary reconstruction from aerial images for the realistic analysis of rail electrification systems

    Free access
    Rebelo, JM / Antunes, P / Ambrósio, J et al. | SAGE Publications | 2024

    Currently, the modelling of the railway catenaries for straight tracks is well understood and demonstrated via an accepted number of

     ...

    A transferable method for estimating the economic impacts of track interventions: Application to ground-borne noise reduction measures for whole sections of route

    Free access
    Young, Marcus / Rempelos, Georgios / Ntotsios, Evangelos et al. | SAGE Publications | 2021
    The environmental impacts of noise and vibration are becoming increasingly important in the assessment of new and upgraded railway routes ...

    An examination of alternative schemes for active and semi-active control of vertical car-body vibration to improve ride comfort

    Free access
    Fu, Bin / Bruni, Stefano | SAGE Publications | 2022
    The recent tendency to reduce the weight of car bodies is posing a new challenge to vertical ride quality, since the vibrations related to ...

    A finite element modelling approach for the numerical analysis of switch rail contact loading and cyclic profile degradation

    Free access
    Velic, Dino / Krobath, Martin / Stocker, Erik et al. | SAGE Publications | 2023
    A dynamic 3D finite element model for the calculation of profile degradation in the switch panel is presented. The model includes the ...

    Behaviour of under sleeper pads at switches and crossings – Field measurements

    Free access
    Le Pen, Louis / Watson, G / Hudson, A et al. | SAGE Publications | 2018
    Major growth in rail traffic in many parts of the world in recent years has brought railway networks close to capacity and restricted the ...

    New laboratory methodologies to analyse the top of rail friction modifier performance across different test scales

    Free access
    Harmon, M / Lewis, R | SAGE Publications | 2021
    included: a small-scale benchtop tribometer to measure the tackiness of different TORFMs, attaching an applicator bar to a section of rail and ...

    Carrydown of liquid friction modifier

    Free access
    Rahmani, Hatef / Gutsulyak, Dmitry / Stanlake, Louisa et al. | SAGE Publications | 2022
    fluorescence served to measure the LFM thickness left on the track after the passage of the wheel. The lab experiments show that the LFM cannot ...
    Keywords: Top-of-rail

    Study on the braking distance of composite brake blocks covered with ice for freight trains in winter

    Free access
    Zhang, Yanjun / Liu, Zhendong / Stichel, Sebastian | SAGE Publications | 2023
    preventive measures. Up to now, it has not really been studied how a layer of ice that is often found between the brake block and the wheel ...

    A decentralized approach to formation flight routing of long-haul commercial flights

    Free access
    Verhagen, Collin MA / Visser, Hendrikus G / Santos, Bruno F | SAGE Publications | 2019
    This paper describes the development of an optimization-based cooperative planning system for the efficient routing and scheduling of ...

    Welding simulation of railway bogie frame side beam: Analyses of residual stresses, clamping forces, distortion and prediction of fatigue S-N curves

    Free access
    Afazov, Shukri / Mistry, Kaylan / Uzunov, Kamen | SAGE Publications | 2023
    -N curves with the proposed model showed close correlation with the S-N curves for class F and class F2 welds of the BS7608 standard ...

    Automated processing of railway track deflection signals obtained from velocity and acceleration measurements

    Free access
    Milne, David / Pen, Louis L / Thompson, David et al. | SAGE Publications | 2018
    Measurements of low-frequency vibration are increasingly being used to assess the condition and performance of railway tracks ...

    Selection and ranking of rail vehicle components for optimal lightweighting using composite materials

    Free access
    Mistry, PJ / Johnson, MS / Galappaththi, UIK | SAGE Publications | 2021
    identified the key components for lightweighting of rail vehicles using fibre reinforced polymer composite materials. A methodology used to select ...

    Finite element analysis of a crossing panel under dynamic moving load – effect of support conditions and implications on foot fatigue

    Free access
    Alizadeh Otorabad, Hossein / Bezin, Yann / Grossoni, Ilaria et al. | SAGE Publications | 2023
    The dynamic behaviour of a complete crossing panel under a transient moving load is considered using finite element method (FEM). A 3D ...

    Intermittent cyclic load testing of polymer railway sleepers

    Free access
    van Belkom, Aran / Pittrich, Matthias / Lojda, Vit | SAGE Publications | 2022
    , polymer sleepers exhibit viscoelastic properties, such as creep, a loading rate-dependent stiffness and heating due to non-linearity of the stress ...

    Techno-economic analysis of freight railway electrification by overhead line, hydrogen and batteries: Case studies in Norway and USA

    Free access
    Zenith, Federico / Isaac, Raphael / Hoffrichter, Andreas et al. | SAGE Publications | 2020
    simulations, including the altitude profiles of the lines, air and rolling resistances, and locomotive tractive-effort curves. The composition of the ...

    Effects of temperature and humidity on railhead friction levels

    Free access
    Folorunso, Morinoye O / Lewis, Roger / Lanigan, Joseph L | SAGE Publications | 2023
    This paper explores the research gap involving the links between railhead temperature, relative humidity, and coefficient of friction ...

    Effect of wheel–rail interface parameters on contact stability in explicit finite element analysis

    Free access
    Ma, Yuewei / Markine, Valeri L / Mashal, Abdul Ahad et al. | SAGE Publications | 2018
    It is widely recognized that the accuracy of explicit finite element simulations is sensitive to the choice of interface parameters (i.e ...

    A reliability study of railway switch and crossing components

    Free access
    Litherland, Jack / Andrews, John | SAGE Publications | 2023
    high number of interlinking electrical and mechanical components they contain. Due to their location such as station throats and major ...

    A feasibility assessment of multi-modelling approaches for rail decarbonisation systems simulation

    Free access
    Golightly, David / Pierce, Ken / Palacin, Roberto et al. | SAGE Publications | 2022
    -modelling for rail decarbonisation, using a combination of audit of current state of the art, technical implementation and stakeholder consultation ...

    Analysis on new semi-active control strategies to reduce lateral vibrations of high-speed trains by simulation and hardware-in-the-loop testing

    Free access
    Zhao, Yiwei / Liu, Yongqiang / Yang, Shaopu et al. | SAGE Publications | 2022
    In order to further reduce the vibration of vehicles and simultaneously increase ride comfort, a class of new control strategies, namely ...
    Keywords: hardware-in-the-loop

    Development and control of a rail vehicle model to reduce energy consumption and carbon dioxide emissions

    Free access
    Harrison, Tim J / Midgley, William JB / Goodall, Roger M et al. | SAGE Publications | 2021
    The development, validation and control of a bi-mode train model is presented. A detailed modular model of a United Kingdom Class 800 train ...

    Field trials of a methodology for locomotive brake testing to assess friction enhancement in the wheel/rail interface using a representative leaf layer

    Free access
    Lanigan, Joseph L / Krier, Peter / Johnstone, Luke Buckley et al. | SAGE Publications | 2021
    There are two options for testing the performance of rail vehicles and the application of material to the wheel/rail interface to influence ...

    Yaw compensation and yaw relaxation controls for active steering of railway wheelsets via electromechanical actuators

    Free access
    Liu, Xiaoyuan / Goodall, Roger / Iwnicki, Simon | SAGE Publications | 2022
    It is known that good curving performance and stability often have conflicting requirements given a passive yaw stiffness of the wheelset ...

    Applicability and development of a direct method algorithm for simultaneous optimization of trajectories and energy minimizing control for hybrid fuel cell railway vehicles

    Free access
    Kühlkamp, Florian / Schenker, Moritz / Konrad, Marcel et al. | SAGE Publications | 2023
    operation. As a promising solution, the fuel cell electric drive came into focus as an emission-free drive system at the point of use. In order to ...

    Design optimization of hopper cars employing functionally graded honeycomb sandwich panels

    Free access
    Al-Sukhon, Ayman / ElSayed, Mostafa SA | SAGE Publications | 2022
    In this paper, a novel multiscale and multi-stage structural design optimization procedure is developed for the weight minimization of ...

    Reconstruction of an informative railway wheel defect signal from wheel–rail contact signals measured by multiple wayside sensors

    Free access
    Alemi, Alireza / Corman, Francesco / Pang, Yusong et al. | SAGE Publications | 2019
    wheels. Therefore, wheel impact load detectors exploit multiple sensors to collect samples from different portions of the wheels. The discrete ...

    Redefining rail systems verification and validation: The safety/security STAIRCASE model

    Free access
    Bearfield, George / Van Gulijk, Coen / Thomas, Richard James | SAGE Publications | 2023
    Safety critical functions of the engineered railway need to perform at levels of integrity that are so high that an acceptable failure rate ...

    Sensitivity analysis for operating loads in fatigue design of railway vehicles

    Free access
    Kraft, Sönke / Lüdicke, Daniel | SAGE Publications | 2022
    For the reliable simulation-based fatigue design of railway vehicles, the operation conditions and resulting loads over the lifespan of the ...

      Sensitivity analysis for operating loads in fatigue design of railway vehicles

      Free access
      Kraft, Sönke / Lüdicke, Daniel | German Aerospace Center (DLR) | 2021
      For the reliable simulation-based fatigue design of railway vehicles, the operation conditions and resulting loads over the lifespan of the ...

    Application of smart wayside object controllers to railway signalling systems for decarbonisation

    Free access
    Spiryagin, Maksym / Cole, Colin / Schindler, Christian F. et al. | SAGE Publications | 2024
    application of radio communication to wirelessly transmit command control and signals, the cost of cabling and installation has been significantly ...