Search for dissertations about: "Multi-objective optimization"

Showing result 16 - 20 of 42 swedish dissertations containing the words Multi-objective optimization.

  1. 16. Energy Quality Management for Building Clusters and Districts Using a Multi-Objective Optimization Approach

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Lu Hai; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : As society develops, energy needs and the warnings of global warming have become main areas of focus in many areas of human life. One such aspect, the building sector, needs to take responsibility for a significant portion of energy use. Researchers need to concentrate on applying innovative methods for controlling the growth of energy use. READ MORE

  2. 17. Optimal Estimation of Grain Orientation in an Anisotropic Weld by Ultrasonic Techniques

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Qingwei Liu; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; anisotropic weld model; multi-objective genetic algorithm; nonlinear optimization; ultrasonic probe model; 2D ray tracing;

    Abstract : Grain orientation in an anisotropic weld highly influences ultrasound paths and thus is a significant parameter when making simulations of ultrasonic testing of anisotropic welds. Though each weld is thought to be unique in its structure, the common procedure in modeling is to prescribe the grain orientation in a weld based on limited experience. READ MORE

  3. 18. Slab Frame Bridges Structural Optimization Considering Investment Cost and Environmental Impacts

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Majid Solat Yavari; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Slab frame bridge; Structural design; Cost optimization; Optimization of environmental impact; Life cycle assessment; Genetic algorithm; Pattern search method; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : This research encompasses the automated design and structural optimization of reinforced concrete slab frame bridges, considering investment costs and environmental impacts. The most important feature of this work is that it focusses on realistic and complete models of slab frame bridges rather than on optimization of only individual members or sections of a bridge. READ MORE

  4. 19. Numerical Optimization of a propeller in a given wake and behind a ship

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Kaijia Han; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; propeller geometry; pressure fluctuation; correction; full scale; efficiency; RANS; cavitation; grid density; verification; delivered power; optimization; Hamburg test case; iteration number;

    Abstract : The work presented in this thesis includes two stages in a research project at the Rolls-Royce University Technology Center (UTC) at Chalmers Technology University. The objective of the project is to develop an optimization technique for ship/propeller interaction. READ MORE

  5. 20. Effects of Watershed Dynamics on Water Reservoir Operation Planning Considering the Dynamic Effects of Streamflow in Hydropower Operation

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Nicholas Zmijewski; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reservoir operation; dispersion processes; wave diffusion; multi-objective operation; water resource management; discharge variability; power spectrum analysis; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Water reservoirs are used to regulate river discharge for a variety of reasons, such as flood mitigation, water availability for irrigation, municipal consumption and power production purposes. Recent efforts to increase the amount of renewable power production have seen an increase in intermittent climate-variable power production due to wind and solar power production. READ MORE