Search for dissertations about: "Daniel Berglund"

Showing result 1 - 5 of 7 swedish dissertations containing the words Daniel Berglund.

  2. 1. Models for Additive and Sufficient Cause Interaction

    Author : Daniel Berglund; Timo Koski; Helga Westerlind; Ola Hössjer; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Causal Inference; Sufficient Cause; Potential Outcomes; Counterfactual; Additive Interaction; Interaction; MFPO; ICI; Logistic Regression; Linear Odds; Public Health; Interventions; Probabilistic Potential Outcome; Matematisk statistik; Mathematical Statistics;

    Abstract : The aim of this thesis is to develop and explore models in, and related to, the sufficient cause framework, and additive interaction. Additive interaction is closely connected with public health interventions and can be used to make inferences about the sufficient causes in order to find the mechanisms behind an outcome, for instance a disease. READ MORE

  4. 2. Simulation of welding and stress relief heat treating in the development of aerospace components

    Author : Daniel Berglund; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Abstract : It is important to control critical dimensions of aero engine components during the manufacturing process in order to maintain the quality. However, there is also a need for reduced lead-time and cost. Simulation can be a tool to achieve this. It can give information about dimension, shape, and residual stresses after each manufacturing process. READ MORE

  5. 3. Validation of models for welding and post weld heat treatment in product development of aerospace components

    Author : Daniel Berglund; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Abstract : It is important to control key dimensions in aero engine components during manufacture. This is achieved by finding a stable process-parameter window for each manufacturing operation and to choose an order of manufacture, which gives an adequate result. Production planning has traditionally been carried out from experience and experiments. READ MORE

  6. 4. Improving detection and diagnosis of bearing failures in wind turbine drivetrains

    Author : Daniel Strömbergsson; Pär Marklund; Kim Berglund; Ulf Olofsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Abstract : Wind power has in the last 20 years grown into one of the main sources of renewable energy in the world, with both the amount and size of the turbines increasing substantially. One of the major challenges for the wind power industry is the premature failures of especially the drivetrain components. READ MORE

  7. 5. Prediction of hardening, localization and fracture of multiphase microstructure in boron alloyed steel

    Author : Stefan Golling; Daniel Berglund; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : Over recent years the demand of press hardened ultra-high strength steel for safety structures in automobiles has increased and continuation of this trend is expected.Components with tailored material properties can be manufactured using a thermo-mechanical process with heated and cooled areas in a tool. READ MORE