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Visar resultat 16 - 20 av 39 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. Maintenance and continuous improvement of complex systems : linking stakeholder requirements to the use of built-in test systems

    Författare :Peter Söderholm; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : The failure of a technical system represents two different kinds of change. One change is the degradation of system functions, while the other change is the increase in stakeholder requirements. Hence, information about both stakeholder requirements and system health are necessary in order to properly manage system failures. LÄS MER

  3. 17. Development of information support solutions for complex technical systems using eMaintenance

    Författare :Olov Candell; Ajit Kumar Verma; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : Deployment and use of complex technical systems are common in society and in industry. Many of the complex technical systems have stringent requirements on safety, dependability and cost, which necessitate frequent updates and modification in response to new developments in technology and changing functional requirements. LÄS MER

  4. 18. Analysis of Dynamic Flight Loads

    Författare :Natascha Jansson; Ulf Ringertz; David Eller; Peter Linde; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with the determination of loads on an aircraft struc- ture during flight. The focus is on flight conditions where the loads are significantly time-dependent. Analysis of flight loads is primarily motivated to ensure that structural failure is avoided. LÄS MER

  5. 19. Affordable automation for airframe assembly : developing of key enabling technologies

    Författare :Henrik Kihlman; Mats Björkman; Giorgos Nikoleris; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Building aircraft is a challenging field. An aircraft has a life expectancy of 40 years, compared to just 10 years for a car. Given the vibrations of flying at close to Mach one at an altitude of 10,000 meters, these machines must function flawlessly in a tough environment. This demands high quality in the assembly processes. LÄS MER

  7. 20. An Experimental Investigation of Shape Distortions in Aerospace Composites

    Författare :Erik Hörberg; Malin Åkermo; Stefan Hallström; Patrik Fernberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flyg- och rymdteknik; Aerospace Engineering;

    Sammanfattning : Composite materials are increasingly used in primary structure of modern commercial aircraft. Its excellent material characteristics enables reduction of structural weight compared to traditional metal solutions and thereby offers reduction of fuel consumption and carbon dioxide (CO2) emissions. LÄS MER