Sökning: "Institutionen för maskinvetenskaper"

Visar resultat 1 - 5 av 128 avhandlingar innehållade orden Institutionen för maskinvetenskaper.

  1. 1. Production Costs Calculation Model in Crushing and Screening : Using a technical-economic approach tool for finding the optimal production costs when comparing technical and economical solutions

    Författare :Per Hedvall; Industriell Produktion; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Krossning; siktning; sortering; krossanläggningar; processer; produkter; kostnad; entreprenadindustri; Gruvindustri; ballastindustri; beräkningar;

    Sammanfattning : The mining and quarrying industries represent a highly important sector of the Swedish economy. The mining industry operates globally, whereas the quarrying industry operates on a regional/local basis. LÄS MER

  3. 2. Public Private Business Models for Defence Acquisition - A Multiple Case Study of Defence Acquisition Projects in the UK

    Författare :Thomas Ekström; Andreas Norrman; Peter Tatham; Teknisk logistik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Defence transformation; military logistics; supply chain; support chain; defence acquisition; Business Model; Public Private Participation; Cooperation and Partnership; Value-for-Money; performance; risk; multiple case study; misalignment; transformation av försvaret; militär logistik; försörjnings- och underhållskedja; försvarsanskaffning; affärsmodell; offentlig privat samverkan; valuta för pengarna; prestation; multipel fallstudie; inkonsekvens; defence transformation;

    Sammanfattning : Since the ending of the Cold War, the defence sector, particularly the areas of military logistics and defence acquisition, has been undergoing a comprehensive transformation. There are several factors that explain this transformation: changes in defence and security policies for nations and organisations; reductions in defence expenditure; participation in Peace Support Operations; Lessons Learned from these operations, especially in the area of logistics; revolutionary development in the area of Information and Communication Technology; emergence of novel Commercial Best Practises in the areas of business and business logistics; and changes in the legislation regarding the conduct of public procurement in Europe. LÄS MER

  4. 3. Performance-based costing as decision support for development of discrete part production : Linking performance, production costs and sustainability

    Författare :Christina Windmark; Industriell Produktion; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production cost; PERFORMANCE; decision support; manufacturing; production development; performance-based costing; sustainability; organizational learning; Production cost; Performance; Decision support; Manufacturing; Production development; performance-based costing; Sustainability; Organizational learning;

    Sammanfattning : In today’s global market, the industry is struggling every day to make the “correct decisions”. Decisions concerning production can range from smaller improvements to choice tool or equipment investments to relocation of entire production facilities. LÄS MER

  5. 4. Modelling and simulation of short fatigue cracks

    Författare :Christina Bjerkén; Materialteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materialteknik; Materiallära; Material technology; Interface cracks; Dislocations; Short cracks; Local plasticity;

    Sammanfattning : The growth of short fatigue cracks deviates from the behaviour of long fatigue cracks even if subjected to the same nominal driving force. The influence from the microstructure is pronounced, while crack closure effects may not be that important as for longer cracks. LÄS MER

  7. 5. Condition-Based Maintenance: Selection and Improvement of a Cost-Effective Vibration-Based Maintenance Policy for Rolling element Bearings

    Författare :Basim Al-Najjar; Sherwin David; Bo Bergman; Produktionsekonomi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vibration and acoustic engineering; vacuum technology; hydraulics; Mechanical engineering; a cost-effective vibration-based maintenance policy.; Integrated maintenance; Condition monitoring and control; Total Time on Test-plots; Vibration monitoring; effectiveness and accuracy; Failure causes and mechanisms; Maintenance quality; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; Commercial and industrial economics; Industriell ekonomi; Maintenance Technology; Terotechnology;

    Sammanfattning : Modern machinery is expensive and therefore must run at high availability and effectiveness which cannot be achieved without an effective maintenance policy. Condition monitoring, (CM), techniques can be utilised to reduce or arrest the rate of deterioration of a component so increasing operating life. LÄS MER