Search for dissertations about: "alf andersson"

Showing result 1 - 5 of 7 swedish dissertations containing the words alf andersson.

  2. 1. Macro-Geometric Defects, A numerical and experimental study of springback and surface defects

    Author : Alf Andersson; Industriell Produktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Simulation; Sheet-metal forming; Finite element analysis; Information exchange; Springback; Surface defects; Drawbead; Process analyse; Optimisation; materialteknik; Materiallära; Material technology;

    Abstract : Today, shortened lead-times in the automotive industry have dramatically increased the need for more efficient development methods at every stage of the process development chain. In order to decrease the long lead-time for producing a forming tool, sheet-metal-forming simulation was introduced. READ MORE

  4. 2. Use of FE-analysis for predicting and verifying the design of an automotive component forming process with special regard to macro geometric defects

    Author : Alf Andersson; Industriell Produktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; information exchange; sheet-metal forminA simulation finite element analysis; springback surface defects Classflcation system and or Index term If any ;

    Abstract : This thesis includes four appended papers. The thesis describes the challenges and advantages of the use of FE-analysis in the design of a component forming process in the automotive industry. READ MORE

  5. 3. Artificial Earth : On the Genealogy of Planetary Technicity

    Author : Daniel Andersson; Jonas Anshelm; Johan Hedrén; Alf Hornborg; Linköpings universitet; []
    Keywords : HUMANIORA; HUMANITIES;

    Abstract : As technology transforms the conditions by which we come understand and interact with the world around us, it is relevant to ask questions about the historicalontological aspects of these patterns of change. The widespread adoption of the term “Anthropocene” during the last twenty years indicates the wide acceptance of the view that human activities have become such a powerful driving force for global environmental change that our destructive legacy will be recorded in geological history. READ MORE

  6. 4. EMG and strength in trunk and hip muscles

    Author : Eva A Andersson; Alf Thorstensson; Margareta Nordin; Gymnastik- och idrottshögskolan; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurophysiology; Neurofysiologi; abdominal muscles; biomechanics; electromyography; erector spinae; iliacus; iliopsoas; hip flexor muscles; locomotion; motor control; normalization; posture; psoas; quadratus lumborum; rehabilitation; running; sit-ups; strength; training exercises; u;

    Abstract : The overall aim of this thesis was to study the myouelectric activity of all major muscles involved in the movements and stabilization of the trunk, pelvis and hips during training exercises, postures, motor tasks, maximal strength performance and locomotion. By use of ultra-sound, EMG electrodes could be guided safely and accurately into muscles situated even close to the spinal column, such as psoas, quadratus lumborum and deep parts of erector spinae. READ MORE

  7. 5. Inverse Uncertainty Quantification for Fuel Performance Modeling : Licentiate Thesis

    Author : Gustav Robertson; Henrik Sjöstrand; Peter Andersson; Alf Göök; Paul Blair; Martin Sahlén; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE