Sökning: "Semi-empirical method"

Visar resultat 1 - 5 av 20 uppsatser innehållade orden Semi-empirical method.

  1. 1. Probabilistic Added Wave Resistance Predictions for Design of RoPax Ferries

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

    Författare :Jonathan Viinikka; [2023]
    Nyckelord :Added wave resistance in head waves; Roll-on Roll-off Passenger ferry; Probabilistic wave environment; Semi-empirical method; Adderat vågmotstånd i motsjö; Roll-on Roll-off Passagerar Fartyg; Probabilistiska vågförhållanden; Semiempiriska beräkningsmethoder;

    Sammanfattning : This thesis investigates reasons for significant uncertainties in added wave resistance predictionsand how wave conditions can potentially affect the design of RoPax ferries. The objectiveis to find a suitable prediction method of added wave resistance for the RoPax ferry designapplication. LÄS MER

  3. 2. The influence of soil modeling on the prediction of vehicle dynamics and mobility – A comparison between the Finite Element Method and a Semi[1]Empirical Model

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Jimmy Kjellqvist; [2023]
    Nyckelord :;

    Sammanfattning : This master's thesis investigated the influence of soil modeling on vehicle dynamics and mobility predictions with a focus on two different soil models implemented in Project Chrono: the Bekker-Wong model, and a Finite Element (FE) model. The primary objective is to provide insights for decision-making regarding the most suitable soil model under specific circumstances. LÄS MER

  4. 3. Utökad utvärdering av CPTu-resultat

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Ludvig Danfors; [2022]
    Nyckelord :Soil Behaviour Type; CPTu; CONRAD; signalbehandling;

    Sammanfattning : In Sweden, it is common to use the CPT - Cone Penetration Test when probing in loose soils. This is mainly because the method is suitable for further assessment of soil layer sequences, pore pressure and forming an estimate of the geotechnical properties in-situ. LÄS MER

  5. 4. Acoustic Prediction Methods for Rocket Flame Deflector Design

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

    Författare :FREDRIK RANOW; [2021]
    Nyckelord :Flame deflector; Launch pad; Estimation methods; Acoustics; Reflectivity; Diffraction; Directivity; Flamdeflektor; Uppskjutningsplattform; Uppskattningsmetoder; Akustik; Reflektivitet; Diffraktion; Direktivitet;

    Sammanfattning : The aim of the project behind this report is to gain an understanding for the design criteria of launch pad flame deflectors used for launching rockets. This report presents an overview of the underlying phenomena, and then tackles the issue of estimating noise levels that come about during lift-off. LÄS MER

  7. 5. Methods to Predict Hull Resistance in the Process of Designing Electric Boats

    Master-uppsats, KTH/Marina system

    Författare :Felicia Ahlstrand; Elin Lindbergh; [2020]
    Nyckelord :;

    Sammanfattning : Combustion engines in boats cause several environmental problems, such as greenhouse gas emissions and acidication of oceans. Most of these problems can be reduced by replacing the combustion engines with electric boats. LÄS MER