Sökning: "Interior method"

Visar resultat 1 - 5 av 150 avhandlingar innehållade orden Interior method.

  1. 1. On Some Properties of Interior Methods for Optimization

    Författare :Göran Sporre; KTH; []
    Nyckelord :Interior method; primal-dual interior method; linear programming; quadratic programming; nonlinear programming; semidefinite programming; weighted least-squares problems; central path;

    Sammanfattning : This thesis consists of four independent papers concerningdifferent aspects of interior methods for optimization. Threeof the papers focus on theoretical aspects while the fourth oneconcerns some computational experiments. LÄS MER

  3. 2. Tooth Interior Fatigue Fracture&Robustness of Gears

    Författare :Magnus MackAldener; KTH; []
    Nyckelord :Gear; TIFF; FEM; Taguchi Method; Robustness; Interior Crack; Idler;

    Sammanfattning : The demands the automotive gear designer has to considerduring the gear design process have changed. To design a gearthat will not fail is still a challenging task, but now lownoise is also a main objective. Both customers and legalregulations demand noise reduction of gears. Moreover, thequality of the product is more in focus than ever before. LÄS MER

  4. 3. The ORC method

    Författare :Jan Akander; KTH; []
    Nyckelord :;

    Sammanfattning : The ORC Method (Optimised RC-networks) provides a means ofmodelling one- or multidimensional heat transfer in buildingcomponents, in this context within building simulationenvironments. The methodology is shown, primarily applied toheat transfer in multilayer building components. LÄS MER

  5. 4. Analysis, Control, and Design Optimization of Engineering Mechanics Systems

    Författare :Esubalewe Lakie Yedeg; Martin Berggren; Eddie Wadbro; Anton Evgrafov; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Topology optimization; Helmholtz equation; acoustic impedance; anisotropic filter; thin structures; finite element method; Nitsche-type method; interface problem; Optimal control; adjoint method; business data processing; administrativ databehandling;

    Sammanfattning : This thesis considers applications of gradient-based optimization algorithms to the design and control of some mechanics systems. The material distribution approach to topology optimization is applied to design two different acoustic devices, a reactive muffler and an acoustic horn, and optimization is used to control a ball pitching robot. LÄS MER

  7. 5. Energy Absorbing Material Concepts for Automotive Accident Injury Prevention

    Författare :Rickard Juntikka; KTH; []
    Nyckelord :Head impact; energy absorption; cellular materials; automotive; dynamic; pedestrian; interior; compression; shear; finite element analysis; optimisation;

    Sammanfattning : Although automotive safety has experienced a rapiddevelopment during the last decades, traffic related accidentsrank very high in many countries in terms of cause of death.Statistics show that the head is the body region mostfrequently injured in motor vehicle accidents and the primarycause of death is head injuries. LÄS MER