Sökning: "Produktion och arbetsvetenskap - Produktionsteknik"

Visar resultat 1 - 5 av 119 avhandlingar innehållade orden Produktion och arbetsvetenskap - Produktionsteknik.

  1. 1. High dynamic stiffness nano-structured composites for vibration control : A Study of applications in joint interfaces and machining systems

    Författare :Qilin Fu; Cornel-Mihai Nicolescu; Per Nylén; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vibration control; High dynamic stiffness; Metal matrix composite; Nano structures; Plasma enhanced chemical vapour deposition PECVD ; High power impulse magnetron sputtering HiPIMS ; Adiabatic; Machining; Regenerative tool chatter; Production Engineering; Industriell produktion;

    Sammanfattning : Vibration control requires high dynamic stiffness in mechanical structures for a reliable performance under extreme conditions. Dynamic stiffness composes the parameters of stiffness (K) and damping (η) that are usually in a trade-off relationship. This thesis study aims to break the trade-off relationship. LÄS MER

  3. 2. Arbetstidens symbolvärde : om historisk kontinuitet och förändring i synen på arbetstid samt normers inverkan på arbetstidens gestaltning

    Författare :Calle Rosengren; Jan Forslin; Eskil Ekstedt; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Working time; working life; organizational culture and social norms; Arbetstid; arbetsliv; organisationskultur och normer; Manufacturing engineering and work sciences; Produktion och arbetsvetenskap;

    Sammanfattning : The point of departure of the present thesis is what happens to working time in sections of the labor market where the content of production is becoming more knowledge-intensive, that is, where production is largely based on creativity, knowledge development and communication – processes that are difficult to control and locate in time. Paired with the rise in information and communication technology (ICT), room for interpretation is created by necessity as concerns the boundaries of work and what constitutes a satisfactory work effort. LÄS MER

  4. 3. On Incentives affecting Risk and Asset Management of Power Distribution

    Författare :Carl Johan Wallnerström; Rajeev Thottappillil; Patrik Hilber; Ulf Sandberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; asset management; correlation studies; incentives; investment planning; maintenance planning; power distribution; reliability analysis; risk management; statistical validation; tariff regulation; vulnerability analysis; weather states; Electric power engineering; Elkraftteknik; Mathematical statistics; Matematisk statistik; Industrial engineering and economy; Industriell teknik och ekonomi;

    Sammanfattning : The introduction of performance based tariff regulations along with higher media and political pressure have increased the need for well-performed risk and asset management applied to electric power distribution systems (DS), which is an infrastructure considered as a natural monopoly. Compared to other technical systems, DS have special characteristics which are important to consider. LÄS MER

  5. 4. Automated layup and forming of prepreg laminates

    Författare :Andreas Björnsson; Kerstin Johansen; Mats Björkman; Marie Jonsson; Lars Pejryd; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Composite materials like carbon fiber-reinforced polymers (CFRPs) present highly appealing material properties, as they can combine high strength with low weight. In aerospace applications, these properties help to realize lightweight designs that can reduce fuel consumption. LÄS MER

  7. 5. Virtual Reality Platform for Design and Evaluation of the Interaction in Human-Robot Collaborative Tasks in Assembly Manufacturing

    Författare :Patrik Gustavsson; Anna Syberfeldt; Magnus Holm; Lihui Wang; Magnus Wiktorsson; Högskolan i Skövde; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Production and Automation Engineering; Produktion och automatiseringsteknik;

    Sammanfattning : Industry is on the threshold of the fourth industrial revolution where smart factories area necessity to meet customer demands for increasing volumes of individualized products. Within the smart factory, cyber-physical production systems are becoming important to deal with changing production. LÄS MER