Sökning: "Rail vehicle dynamics"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Rail vehicle dynamics.

  1. 1. Parameter study for an energy efficient suspension for a rail vehicle prototype

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

    Författare :Ludvig Danström; [2023]
    Nyckelord :Delsbo electric; Energy efficiency; Rail vehicle; Suspension system; Delsbo electric; energieffektivitet; fjärder- och dämparsystem; spårfordon;

    Sammanfattning : The push for sustainability in all parts of our society has never been as big as it is currently. One project that aims to produce sustainable innovation in the railway industry is the Delsbo Electric competition where some of the world’s most energy efficient vehicles compete. LÄS MER

  3. 2. 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

  4. 3. Dynamic Simulation and Suspension Optimization for a Heavy Duty Railway Bogie

    Master-uppsats, KTH/Spårfordon

    Författare :David Prifer; [2021]
    Nyckelord :Rail vehicle; Bogie Technology; Running Dynamics; Simulation; Simpack; Vehicle Acceptance; Validation; Järnväg; Gångegenskaper; Flerkroppssimulering; Acceptanskrav;

    Sammanfattning : A multi-body simulation study was undertaken to investigate the running behavior of a rail grinder vehicle with newly developed Ganz bogies. The main purpose of the simulations was to forecast and support the vehicle acceptance tests and support the ongoing development. LÄS MER

  5. 4. Improving the validation of a railway vehicle model in the virtual certification process

    Master-uppsats, KTH/Spårfordon

    Författare :Bente de Leeuw; [2021]
    Nyckelord :Rail vehicle dynamics; Rail vehicles; Rail profiles; wheel profiles; model validation; Dynamik; järnvägsfordon; järnvägsprofiler; hjulprofiler; modellvalidering.;

    Sammanfattning : Before vehicles can be placed in service it has to complete an authorisation process. At the moment,this process is largely depended on tests. This is, however, an expensive and long process. With new technologies and improved simulations this process can be shortened and the costs can be lowered. LÄS MER

  7. 5. 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