Sökning: "Railway system"

Visar resultat 1 - 5 av 331 uppsatser innehållade orden Railway system.

  1. 1. Holistic Assessment of Critical Infrastructure Resilience during Disasters (HACIRD) - A case study of the 2023 Kahramanmaras earthquakes

    Master-uppsats, Lunds universitet/Riskhantering (CI); Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Författare :Erik Kimblad; [2024]
    Nyckelord :Critical infrastructure; Lifeline; Resilience; Interdependencies; Earthquake; Natural hazards; Turkey; Holistic; Disaster; Framework; Assessment; Empirical; Case study; Technology and Engineering;

    Sammanfattning : On February 6, 2023, two earthquakes (7.8MW and 7.7MW) struck Turkey within nine hours, resulting in over 50,000 fatalities and significant damage to critical infrastructures (CI) which provide services essential for the functioning of society. LÄS MER

  3. 2. Klimatanpassning av svensk järnväg ur ett riskperspektiv - Var står vi och vart är vi på väg

    Master-uppsats, Lunds universitet/Riskhantering (CI); Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Författare :Pontus Gersne; [2024]
    Nyckelord :Climate Change; Climate Change Adaptation; Critical infrastructure; Railways; weather events; extreme weather; Critical Entities; Sweden; Technology and Engineering;

    Sammanfattning : The world faces significant climate changes with potential societal disruptions and risks to critical infrastructure like railways. This study explores the topic of climate change, extreme weather, and changing travel patterns for Swedish railways. LÄS MER

  4. 3. Vehicle dynamics modelling of electromagnetic suspensions for MAGLEV applications

    Master-uppsats, KTH/Väg- och spårfordon samt konceptuell fordonsdesign

    Författare :Léa Chatelais; [2024]
    Nyckelord :MAGLEV; Dynamics; Requirements; Suspension; Vehicle modeling; MATLAB; MAGLEV; Dynamisk; Fordran; Upphängning; Fordon modell; MATLAB;

    Sammanfattning : MAGnetic LEVitation Guidance System (MAGLEV) technology was commercially introduced relatively recently in the guided transport field. It is based on removing the wheels and rails of classic railway systems and supporting and guiding the train with magnets and magnetic forces instead. LÄS MER

  5. 4. INDUCTIVE RAILWAY SWITCH POINT HEATING : Improved control algorithm and phase compensation analysis for an inductive turnout heating system, and comparison with a resistive heating system

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Erik Nordlund; [2023]
    Nyckelord :Inductive switch point heating; Turnout heating; railway turnout heating; Inductive heating;

    Sammanfattning : Railway turnout heating is essential during the winter because snow and ice can hinder the movement of the switch. In Sweden, heating has traditionally been done using resistive heating wires mounted to the stock rail, but the technology is outdated and generally exhibits low efficiency and performance. LÄS MER

  7. 5. Flexible project management in highly regulated railway signaling projects

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Teresa Talio; [2023]
    Nyckelord :Signalling; Railway; System development; Systems Engineering; Lean Philosophy; Stage-Gate Process; Signalering; järnväg; systemutveckling; systemteknik; Lean-filosofi; Stage-gate-processen;

    Sammanfattning : Railway is a complex system, with many components that are linked with one another. If a failure occurs in a sub-system, it can affect the functionality and the safety of the whole. Signalling represents a crucial component of the railway system because it ensures safety, and it can optimize capacity on the lines. LÄS MER