Sökning: "cutting plane method"

Hittade 4 uppsatser innehållade orden cutting plane method.

  1. 1. Material Characterization and Blade Impact Simulation

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Gustaf Bodare; [2022]
    Nyckelord :Strain rate dependency; Split-Hopkinson pressure bar; Digital image correlation; LS-DYNA; FEM; SPG;

    Sammanfattning : Blades used on brushcutters and lawn mowers are subjected to a wide variety of working conditions. Besides continuous loads from cutting grass, the blades are also subjected to accidental impacts of branches, stones and structures. LÄS MER

  3. 2. Investigation of the heat transfer of enhanced additively manufactured minichannel heat exchangers

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Hamidreza Rastan; [2019]
    Nyckelord :Minichannel; Microchannel; Heat exchanger; Additive manufacturing; 3D printing; Numerical simulation; CFD; Comsol;

    Sammanfattning : Mini-/microchannel components have received attention over the past few decades owing to their compactness and superior thermal performance. Microchannel heat sinks are typically manufactured through traditional manufacturing practices (milling and sawing, electrodischarge machining, and water jet cutting) by changing their components to work in microscale environments or microfabrication techniques (etching and lost wax molding), which have emerged from the semiconductor industry. LÄS MER

  4. 3. 3D geologic subsurface modeling within the Mackenzie Plain, Northwest Territories, Canada

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Nadine Raska; [2017]
    Nyckelord :geology; 3D modeling; geography; geographic information systems; horizons; stratigraphic modeling; Earth and Environmental Sciences;

    Sammanfattning : Three-dimensional (3D) models are widely used within the geosciences to provide scientists with conceptual and quantitative models of the earth’s subsurface. As a result, 3D geologic modelling is a growing field, such that scientific research often cannot keep up with technical advancements. LÄS MER

  5. 4. Towards the Solution of Large-Scale and Stochastic Traffic Network Design Problems

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för informationsteknologi

    Författare :Fredrik Hellman; [2010]
    Nyckelord :optimization; traffic network design; implicit programming; mathematical programs with equilibrium constraints; cutting plane method; bilevel programming; stochastics; MPEC; SMPEC;

    Sammanfattning : This thesis investigates the second-best toll pricing and capacity expansion problems when stated as mathematical programs with equilibrium constraints (MPEC). Three main questions are rised: First, whether conventional descent methods give sufficiently good solutions, or whether global solution methods are to prefer. LÄS MER