Essays about: "thesis about aircraft."

Showing result 6 - 10 of 49 essays containing the words thesis about aircraft..

  1. 6. LES modelling of spray combustion

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Arvid Åkerblom; [2021]
    Keywords : Gas Turbine; CFD; Large Eddy Simulation; Lagrangian Particle Tracking; Chemical Kinetics; Reaction Mechanism; Combustion; OpenFOAM; CHEMKIN; Technology and Engineering;

    Abstract : Computational fluid dynamics is a powerful method for understanding the flow and combustion that occurs inside aircraft engines and will be a key tool in the transition from conventional fossil-based fuel to sustainable alternatives. Because conventional fuels have been more widely researched, an attempt at simulating the combustion of alternative fuels should be preceded by the development of a method that is capable of accurately simulating the combustion of a conventional fuel. READ MORE

  3. 7. Methods for validating a flight mechanical simulation model for dynamic maneuvering

    University essay from KTH/Flygdynamik

    Author : Sofia Senneberg; [2021]
    Keywords : Flight mechanics simulator; flight test; project-oriented validation; Flygmekanisk simulator; flygprov; projekt orienterad validering;

    Abstract : Flight mechanical simulators play an important role in the design steps during development of a new aircraft. To be able to simulate and evaluate flight mechanical characteristics during development it is important to minimize development time and cost while keeping flight safety high during early flights. READ MORE

  4. 8. Implementation and comparison of the Aircraft Intent Description Language and point-mass Non-Linear Dynamic Inversion approach to aircraft modelling in Modelica

    University essay from Linköpings universitet/Fluida och mekatroniska system

    Author : Arcot Manjunath Shreepal; Shree Harsha Vijaya Kumar; [2021]
    Keywords : aircraft Modelling; Modelling and Simulation; Aircraft Intent; model-based systems engineering; Flight dynamics; Longitudinal stability; Aircraft Modelling; Non-linear Dynamic Inversion; Conceptual aircraft design; Dynamic Inversion; control methods; aircraft plant model; Object-oriented aircraft model; Air traffic management; Modelica; Modelon Impact; Modelica tool; 3DoF; AIDL; point-mass model;

    Abstract : The study is conducted to determine practical modelling and simulation techniques to perform dynamic stability and performance analysis on a 3 Degrees of freedom aircraft model using a Modelica-based commercial tool called Modelon Impact. This study is based on a conceptual aircraft model where in-depth details about the aircraft configuration are unknown and the aim is to determine a suitable model that can capture the longitudinal dynamics and aerodynamic constraints of the aircraft during the conceptual design phase. READ MORE

  5. 9. Reducing Delays for Unplanned Maintenance of Service Parts in MRO Workshops : A case study at an aerospace and defence company

    University essay from Linköpings universitet/Produktionsekonomi

    Author : Mattias Jenvald; Mikael Hovmöller; [2020]
    Keywords : Maintenance; Repair; Overhaul; MRO; Service; Saab; Service Part; Supply Chain; Data; Information; Utilization; Information Logistics; Information System; Strategy; Optimization; Traceability;

    Abstract : Service parts sometimes break down unexpectedly and require maintenance. The irregular nature of the need for this type of maintenance makes forecasting difficult and unreliable. READ MORE

  6. 10. Quantification of similarity between dickcissel song dialects

    University essay from Lunds universitet/Matematisk statistik

    Author : Patrik Andrén; [2020]
    Keywords : Mathematics and Statistics;

    Abstract : In this thesis, five methods of scoring the similarity of phrases from dickcissel birds are explored. The methods are tested on real and simulated data. The method that is found to perform the best is a variation of the spectrographic cross-correlation method that also looks at correlation in the frequency domain. READ MORE