Sökning: "Flight mechanics"

Visar resultat 6 - 10 av 31 uppsatser innehållade orden Flight mechanics.

  1. 6. Oil Autonomy of a Turbojet

    Master-uppsats, KTH/Flygdynamik

    Författare :Florian Steiner; [2022]
    Nyckelord :Fluid Mechanics; Turbojet; Oil circuit; Fluid Mekanik; Turbojet; Oljekrets;

    Sammanfattning : The oil circuit of a jet engine is required to lubricate and cool mechanical parts. The oil is pumped from the oil tank and flows through heat exchangers. Then it is injected on the bearings for lubrication and cooling, before being scavenged at the bottom of the sumps and finally flows back to the oil tank. LÄS MER

  3. 7. Transformation of In-Flight Measured Loads to a Fatigue Test Spectrum

    Master-uppsats, Linköpings universitet/Mekanik och hållfasthetslära

    Författare :Patrick Dümig; [2022]
    Nyckelord :Aerospace engineering; Aircraft load spectra; ASIP; Crack growth; Fatigue testing; Flight loads; Flight test; Fracture mechanics; FSFT; In-flight measurements; Load spectrum reduction; Racetrack filtering; Strain gauge measurements;

    Sammanfattning : Fatigue is a well-recognized issue in lightweight and high-performance aircraft structures. As fatigue failures have led to serious accidents and caused significant economic impact in the past, design against fatigue is crucial. LÄS MER

  4. 8. Adding storage to an unmanned aerial vehicle : Without compromising the flight mechanics

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Författare :Philip Jan Grolleman; [2022]
    Nyckelord :Designing aerodynamics simulations flight mechanical engineering;

    Sammanfattning : The Swedish Sea Rescue Services (SRSS) has developed an Unmanned ArialVehicle (UAV) which they use for search and rescue missions. The SRSS wantsto upgrade this UAV to also be able to fly and drop with a package. Bydesigning according to the model of designing by HH van den Kroonenberg [2]. LÄS MER

  5. 9. Development and Use of System Modeler 6DOF Flight Mechanics Model in Aircraft Conceptual Design

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :Niko Erä-Esko; [2022]
    Nyckelord :Aircraft Conceptual Design; Flight Mechanics; Modelling and Simulation;

    Sammanfattning : This thesis presents a tool for conceptual design of a traditional configuration aircraft by using a parametric six degrees of freedom (6DOF) flight mechanics model implemented in the Modelica Language using Wolfram System Modeler. Being first only able to model and simulate the uncontrolled flight of an aircraft with fixed mass and centre of gravity (CG), and requiring detailed aerodynamic parameters as an input, the 6DOF model is improved by developing new features to reduce the number of required inputs while also increasing the data output of the simulations. LÄS MER

  7. 10. Enhancing the endurance of UAVs by the use of structural power composites: System-level study of a flying wing

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Gustav Burman; [2021]
    Nyckelord :;

    Sammanfattning : This thesis studies the feasibility of integrating the novelStructural Battery (SB)[1] into the airframe of a UnmannedAerial Vehicle (UAV). The potential advantages in terms ofmass, range and endurance are studied.The aircraft performance is analysed using conventionalflight mechanics, modelled in Matlab and Xfoil. LÄS MER