Sökning: "saab Aerodynamics"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden saab Aerodynamics.

  1. 1. Exploring feasibility of reinforcement learning flight route planning

    Kandidat-uppsats, Linköpings universitet/Institutionen för datavetenskap; Linköpings universitet/Filosofiska fakulteten

    Författare :Axel Wickman; [2021]
    Nyckelord :SAAB; flight route planning; autorouting; auto-routing; auto routing; AI; machine learning; fighter jet; convolution; PPO; DQN; Astar; A*; C ; Python; LibTorch; PyTorch; multi threading; multi-threading; simulation; aerodynamics; world generation; Perlin noise; investigation; reward; Flygplanering; flygruttsplannering; maskininlärning; AI; SAAB; faltning; faltningslager; belöning;

    Sammanfattning : This thesis explores and compares traditional and reinforcement learning (RL) methods of performing 2D flight path planning in 3D space. A wide overview of natural, classic, and learning approaches to planning s done in conjunction with a review of some general recurring problems and tradeoffs that appear within planning. LÄS MER

  3. 2. Aeroelastic flutter analysis with varying level of accuracy

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Nils Voigt Dahl; [2020]
    Nyckelord :flutter; aeroelasticity; aeroelastic; aerodynamics; Technology and Engineering;

    Sammanfattning : Flutter prediction is a vital part of aircraft development which requires efficient and accurate analysis methods. Saab AB Aeronautics is currently using linear analysis based on the panel method and nonlinear analysis using their in-house CFD software program. These methods are in contrast to one another in terms of computing time and accuracy. LÄS MER

  4. 3. Direct Lift Control of Fighter Aircraft

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Philip Öhrn; Markus Åstrand; [2019]
    Nyckelord :direct lift; direct lift control; fighter aircraft; model predictive control; linear quadratic control; MPC; LQ; flight path angle;

    Sammanfattning : Direct lift control for aircraft has been around in the aeronautical industry for decades but is mainly used in commercial aircraft with dedicated direct lift control surfaces. The focus of this thesis is to investigate if direct lift control is feasible for a fighter aircraft, similar to Saab JAS 39 Gripen, without dedicated control surfaces. LÄS MER

  5. 4. Development of a Multidisciplinary Design Optimization Framework Applied on UAV Design

    Master-uppsats, Linköpings universitet/Maskinkonstruktion; Linköpings universitet/Tekniska fakulteten

    Författare :Athanasios Papageorgiou; [2015]
    Nyckelord :MDO; UAV; Optimization; Multidisciplinary; CAD; Aerodynamics; Sensor analysis; RCS; Mission simulation;

    Sammanfattning : The present thesis deals with the topic of Multidisciplinary Design Optimization (MDO) and in particular with the development of a framework for Unmanned Aerial Vehicle (UAV) design. The orientation of the research and the overall outlook of the case-study have been based on Saab’s proposal regarding the application of MDO in complex products and are in compliance with the guidelines of the Innovative Multidisciplinary Product Optimization (IMPOz) project initiative. LÄS MER

  7. 5. Design, Modeling and Control of an Octocopter

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Oscar Oscarson; [2015]
    Nyckelord :;

    Sammanfattning : This master’s thesis project from the Department of Mathematics at KTH, Royal Institute of Technology, Stockholm, Sweden was carried out at Saab Dynamics, Linköping, Sweden. In this thesis, an octocopter was studied, which is a multirotor vehicle, a rotorcraft with more than two rotors. LÄS MER