Sökning: "Hull Modification"

Hittade 4 uppsatser innehållade orden Hull Modification.

  1. 1. Computational Analysis of Spray Deflector Designs

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Osman Gyokhan Ali; [2023]
    Nyckelord :Planing Hulls; Spray Deflector; Hull Modification; Computational fluid dynamics CFD ; resistance; trim angle; heave; CD-adapco Star CCM ; Numerical Ventilation; Phase Replacement; Modified HRIC Scheme; Volume Fraction Source Term; Reynolds averaged Navier-Stokes RANS ; Volume of Fluid VOF ; SST K-Omega Turbulence Modelling; Höghastighetshantverk; modelldesign; spraydeflektor;

    Sammanfattning : Planing hull is a common hull design concept which decreases the resistance while speed is increasing for a specific speed range. It is also suitable for hull modifications to achieve higher efficiency. Spray deflector is a promising hull modification which offers extra resistance decreasing and less vertical acceleration for planing hulls. LÄS MER

  3. 2. Study of stability improvement measures meeting the effects of new use of a secondhand cement carrier vessel

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Jansen Novri; [2022]
    Nyckelord :ship modification; cargo type; stability code; center of gravity; center of buoyancy; fartygsmodifiering; lasttyp; stabilitetskod; tyngdpunkt; flytkraftscentrum;

    Sammanfattning : Secondhand ship is an option to improve marine business competitiveness. It provides a way for ship owners to integrate customer market rapidly without spending many resources on producing new ships. However, secondhand ships that perfectly suit owner's requirements becomes unavoidable challenge. LÄS MER

  4. 3. Autonomous Docking of Electric Boat

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

    Författare :LUDVIG BOCZAR; JONATHAN PERNOW; [2021]
    Nyckelord :Autonomous Boat; Boat Docking; Radar; Model Predictive Control; Motion Control; Autonom Båt; Båttilläggning; Radar; Modellprediktiv Reglering; Rörelsestyrning;

    Sammanfattning : In recreational boating, docking is one of the most stressful and accident prone situations. Due to the loss of maneuverability at low speeds, it is a procedure that requires experience. LÄS MER

  5. 4. Experimental Validation of Innovative High-Speed Craft Spray Deflectors

    Master-uppsats, KTH/Marina system

    Författare :Fran Osmak; [2020]
    Nyckelord :;

    Sammanfattning : Hydrodynamic analysis of high-speed craft is a complex problem. For years naval architects have tried improving the eÿciency of the hull, changing its form, the number of hulls, adding spray rails or steps. LÄS MER