Search for dissertations about: "Aeronautics"

Showing result 21 - 25 of 80 swedish dissertations containing the word Aeronautics.

  2. 21. Quasi-analytical Modelling and Optimisation Techniques for Transport Aircraft Design

    Author : Askin T. Isikveren; KTH; []
    Keywords : aircraft; conceptual; design; specifications; atmosphere; geometry; weight; aerodyanmics; propulsion; operational performance; stability and control; constrained multi-objective optimisation; computer aided design; regional; business; high-transonic; ;

    Abstract : The research work presented here focuses on the subject oftransport aircraft design at the pre-design or conceptuallevel. The primary topics addressed are: (1) generation of avast array of new quasi-analytical expressions to permit aconceptual treatment of commercial and business transportaircraft with adequate sensitivity for more advanced tradestudies; (2) review and adoption of a method to predictstability and control characteristics (using the Mitchellmethod); (3) a study of the relative merits between variousmethods in facilitating an expedient and robust constrainedmulti-objective optimisation result within the context oftraditional conceptual design problems (Genetic Algorithms andNelder-Mead Simplex search); (4) creation of a software packageas a new and unique conceptual tool that permits the generationof design proposals in an accurate yet expeditious manner; and,(5) practical demonstration of the new conceptual designsoftware package by undertaking some actual aircraft designproposals. READ MORE

  4. 22. The behaviour of continuous fiber impregnated thermoplastic (COFIT) woven system

    Author : Mariatti Jaafar; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  5. 23. Load Introduction in Carbon Fibre Composites for Automotive Applications

    Author : Gordon Kelly; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  6. 24. Finite Element Modeling of the Human Head

    Author : Svein Kleiven; KTH; []
    Keywords : Finite element method FEM ; Human head; brain; head injury; epidemiology; statistics; simulations.;

    Abstract : The main objectives of the present thesis were to define the dimension of head injuries in Sweden over a longer period and to present a Finite Element (FE) model of the human head which can be used for preventive strategies in the future. The annual incidence of head injuries in Sweden between 1987 and 2000 was defined at over 22 000, cases most of which were mild head injuries. READ MORE

  7. 25. Stiffness and strength of laser-welded sandwich panels

    Author : Hans Kolsters; KTH; []
    Keywords : ;

    Abstract : .... READ MORE