Sökning: "Wheel Rail"

Visar resultat 1 - 5 av 82 avhandlingar innehållade orden Wheel Rail.

  1. 1. Influence of rail, wheel and track geometries on wheel and rail degradation

    Detta är en avhandling från Chalmers University of Technology

    Författare :Kalle Karttunen; Chalmers tekniska högskola.; Chalmers University of Technology.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling contact fatigue; wear; rolling contact; railway; wheel; rail; track geometry; maintenance;

    Sammanfattning : For more efficient railway maintenance there is a need to increase the understanding of the influence of operational conditions on wheel and rail degradation. To this end, the chosen primary investigation strategy is to employ dynamic multibody simulations, where operational conditions are altered, to estimate the influence on material deterioration. LÄS MER

  2. 2. Wheel/rail wear and surface cracks

    Detta är en avhandling från Stockholm : Maskinkonstruktion

    Författare :Rickard Nilsson; KTH.; [2003]
    Nyckelord :wheel; rail. Profile; surfaces; hardness; wear; cracks;

    Sammanfattning : .... LÄS MER

  3. 3. Simulation and Measurement of Wheel on Rail Fatigue and Wear

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Babette Dirks; KTH.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multibody simulations; prediction; wear; RCF; wheel; rail; cracks; measurements; Farkostteknik; Vehicle and Maritime Engineering;

    Sammanfattning : The life of railway wheels and rails has been decreasing in recent years. This is mainly caused by more traffic and running at higher vehicle speed. LÄS MER

  4. 4. On Simulation of Uniform Wear and Profile Evolution in the Wheel - Rail Contact

    Detta är en avhandling från Stockholm : KTH

    Författare :Roger Enblom; KTH.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wheel-rail contact; wear; wear prediction; wear model; wheel profile; rail; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Sammanfattning : Numerical procedures for reliable wheel and rail wear prediction are rare. Recent development of simulation techniques and computer power together with tribological knowledge do however suggest computer aided wear prediction as possible. LÄS MER

  5. 5. On Efficient Modelling of Wheel-Rail Contact in Vehicle Dynamics Simulation

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Matin Shahzamanian Sichani; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wheel-rail contact; non-elliptic contact; rail vehicle dynamics; rolling contact; vehicle-track interaction; wheel-rail damage; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Tribologi; The KTH Railway Group - Tribology; Farkostteknik; Vehicle and Maritime Engineering;

    Sammanfattning : The wheel-rail contact is at the core of all research related to vehicletrackinteraction. This tiny interface governs the dynamic performanceof rail vehicles through the forces it transmits and, like any high stressconcentration zone, it is subjected to serious damage phenomena. LÄS MER