Sökning: "Actuator Disc"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Actuator Disc.

  1. 1. Propulsion modelling of a generic submarine propeller

    Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Gustav Boman; [2023]
    Nyckelord :OpenFOAM; CFD; actuator line model; rotor disk; actuator disk; INSEAN E1619; propeller;

    Sammanfattning : Self propulsion modelling is important in order to accurately simulate ships and submarinesusing Computational Fluid Dynamics (CFD). However, fully resolved simulations of hull andpropeller geometries are computationally heavy and time consuming. As such there is a greatinterest in lower order CFD models of propellers. LÄS MER

  3. 2. Evaluation of MPC and PI control on a Tribometer : Design and comparison of control methods for a Pin-on-Disc Tribometer

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

    Författare :Ehab Ziad Raheem; Tore Malmström; [2023]
    Nyckelord :Control Theory; MPC; PI; PI-Cascade; Tribometer; Pin-on-Disc; Reglersystem; MPC; PI; PI-Kaskadreglering; Tribometer; Stift-På-Skiva;

    Sammanfattning : This thesis compares Model Predictive Control (MPC) and Proportional-Integral (PI) control in a pin-on-disc tribometer. The tribometer consists of a geared Direct Current (DC) motor driving a flywheel and a voice coil actuating a pin onto the surface of the flywheel. LÄS MER

  4. 3. Evaluation of linear force actuators in a pin-on-disc test rig application

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

    Författare :JAKUB JAN RUPNIEWSKI; [2020]
    Nyckelord :;

    Sammanfattning : This thesis presents an evaluation and comparison of two linear actuators that can be used as load application actuators in a pin-on-disc tribological test rig. The first actuator is a DC-motor with an external ball screw, and the second actuator is a voice coil. LÄS MER

  5. 4. Design of a Tribometer to Study Friction inThreaded Fastener Interfaces

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Zhan-Jun Lin; [2020]
    Nyckelord :tribometer; friction coefficient; tightening; pin-on-disc; tribometer; friktionskoefficient; åtdragning av skruvförband; pin-on-disc;

    Sammanfattning : Bolts and nuts are one of most common joining methods since they are simple and low-cost to connect parts. Appropriate clamp force from bolted joint remains resultant joints secured, but higher/lower preload on bolted joint increases risk of the failure of mechanism. LÄS MER

  7. 5. Jet Stream Velocity fromAzipod on Stadsgården : A Litterature Study of PIANC W.G. 180Application for Stadsgården

    Master-uppsats, KTH/Marina system

    Författare :Viking Alex Schumacher; [2018]
    Nyckelord :;

    Sammanfattning : The ferry line company VIKING LINE has put in an order for a new vessel with a planned delivery for the year 2020. The vessel will berth and depart daily from the Stockholm port, Stadsgården. The vessel is equipped with two 10 MW Azipod propeller systems. LÄS MER