Sökning: "Daniel Berglund"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Daniel Berglund.
1. Models for Additive and Sufficient Cause Interaction
Sammanfattning : 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. LÄS MER
2. Simulation of welding and stress relief heat treating in the development of aerospace components
Sammanfattning : 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. LÄS MER
3. Validation of models for welding and post weld heat treatment in product development of aerospace components
Sammanfattning : 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. LÄS MER
4. Improving detection and diagnosis of bearing failures in wind turbine drivetrains
Sammanfattning : 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. LÄS MER
5. Prediction of hardening, localization and fracture of multiphase microstructure in boron alloyed steel
Sammanfattning : 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. LÄS MER