Sökning: "track irregularities"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden track irregularities.

  1. 1. 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

  3. 2. Improved Bridge Load Capacity via Dynamic Train-Track-Bridge Interaction : Assessing the dynamic amplification factor caused by measured track irregularities for rail freight transport

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Muhannad Asaad; [2023]
    Nyckelord :;

    Sammanfattning : The carbon impact of transportation is large and requires sustainable solutions. With expected population growth, rail transportation plays a vital role in facilitating a greener Europe. The expansion of the rail infrastructure is therefore of essential importance for future challenges. LÄS MER

  4. 3. Parametric Studies of Train-Track-Bridge Interaction : An evaluation of the dynamic amplification due to track irregularities for freight transport

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Rasmus Elm Dahlman; Emil Lundberg; [2021]
    Nyckelord :Dynamics; dynamic amplification factor; railway bridge; train-track-bridge interaction; vehicle model; track irregularities; PSD; Dynamisk förstoringsfaktor; dynamik; järnvägsbroar; tåg-spår-bro interaktion; fordonsmodell; spårojämnheter; PSD;

    Sammanfattning : In this thesis a train-track-bridge interaction (TTBI) model is developed in order to study the dynamic amplification from track irregularities on railway bridges traversed by freight trains. These simulations are of great importance since rail freight transport is expected to increase in order to meet the climate goals. LÄS MER

  5. 4. Dynamic Modelling of the KTH Roller Rig

    Master-uppsats, KTH/Spårfordon

    Författare :Daniele Mario Fraschini; [2021]
    Nyckelord :rail vehicle dynamics; roller rig; scaling; track irregularities; validation; modelling; spårfordons dynamik; rullrigg; nedskalning; spårlägesfel; validering; modellering;

    Sammanfattning : The Rail Vehicle Research group at Kungliga Tekniska Högskolan (KTH) is on the path to design and build a scaled test rig called roller rig for research and educational purposes. A roller rig is a device simulating the track with rollers on which the test subject (a wheelset, bogie or even a full vehicle) canbe placed. LÄS MER

  7. 5. Predicting infrastructural failures with vehicle data

    Uppsats för yrkesexamina på grundnivå, Lunds universitet/Trafik och väg

    Författare :Linus Rydstedt; Cajsa Åkerlund; [2020]
    Nyckelord :Predicting; Infrastructure failures; Railway; Trains; Train-Track; Technology and Engineering;

    Sammanfattning : I examenarbetet undersöks det om man kan upptäcka fel på infrastrukturen med hjälp av eventkoder genererade från fordonsdatorn. För att kunna dra en slutsats om man kan förutspå ett infrastrukturfel med hjälp av fordonsdata har historiska data med kända fel från infrastrukturen undersökts tillsammans med eventkoder som genererats av fordonen. LÄS MER