Sökning: "rail damage"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden rail damage.

  1. 1. The Effect of High Wheel Impact Load on the Rail Reliability - a Case Study at Bodsjön

    Master-uppsats, KTH/Spårfordon

    Författare :Ngoc Thúy Vy Dang; [2021]
    Nyckelord :rail defects; rail reliability; Ultrasonic Test; wheel damage; Wheel Impact Load Detector; statistics; järnvägsdefekter; järnvägssäkerhet; ultraljudstest; hjulskador; hjullastningsdetektor; statistik;

    Sammanfattning : This study focuses on the reliability of railway track in the relation with high loads resulted from wheel damages, where higher (dynamic) vertical wheel loads are expected from trains with damaged wheels. The Swedish Transport Administration (Trafikverket) has monitored and recorded data of rail defects and breaks. LÄS MER

  3. 2. Digitalization in the rail industry: Localizing damaged cargo wagons using spatial operations and big data

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Julia Hellner; [2021]
    Nyckelord :physical geography and ecosystem analysis; big data; clustering; digitization; geofence; geomatics; GNSS; maintenance; rail; spatial analysis; Technology and Engineering; Earth and Environmental Sciences;

    Sammanfattning : Climate change and the sustainability challenges of the 21st century require the reduction of greenhouse gas emissions in all sectors. Accordingly, political objectives urge for a shift from road to rail in logistics. This drives innovation, increased efficiency, and customer friendliness in the rail industry. LÄS MER

  4. 3. Investigation of sources of wheel-rail impact force deviation through dynamic simulations

    Master-uppsats, KTH/Fordonsdynamik

    Författare :Sumanth Ram Aravindababu; [2021]
    Nyckelord :Multi-body simulations; wheel damages; rail damage; damage thresholds; wheel-rail impact forces; classification; Flerkroppssimulering; hjulskador; rälskador; skadetrösklar; hjulslagkraft; rälslagkraft; klassificering;

    Sammanfattning : Due to the increase in demand on freight transportation it becomes necessary to avoid delays to ensure that the goods reach its destination on time. The main factors causing disturbances in the traffic on the mainline is the breakdown of vehicles mainly due to damaged wheels. LÄS MER

  5. 4. Sensitivity analysis of pluvial flood modelling tools for dense urban areas : A case study in Lundby-Lindholmen, Gothenburg

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Johanna Eriksson; [2020]
    Nyckelord :Flood Modelling; MIKE FLOOD; Sensitivity Analysis;

    Sammanfattning : As a result of the global climate change, extreme precipitation is occurring more frequently which increases the risk of flooding, especially in urban areas. Urbanisation is widely discussed regarding urban flooding where an increase of impervious surfaces limits the infiltration and increases the surface runoff. LÄS MER

  7. 5. Ankarskenor i byggandet

    Uppsats för yrkesexamina på grundnivå, Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Författare :Bashar Alkrdi; Jonas Lindberg; [2020]
    Nyckelord :Ankarskena; Arbetsmiljö; Installation; Innovation; Incitament; Anchor rail; Work environment; Installation; Innovation; Incentive;

    Sammanfattning : Vårt examenarbete om ankarskenor i byggandet omfattar implementering av en ny teknik i byggandet i form av föringjutna ankarskenor för installationer av VS rör, ventilation, sprinkler och EL. I en allt mer globaliserad värld råder en allt högre konkurrensutsatt marknad, vilket gör att det också ställs högre krav på entreprenörerna inom byggsektorn. LÄS MER