Search for dissertations about: "Drift och underhållsteknik"

Showing result 1 - 5 of 73 swedish dissertations containing the words Drift och underhållsteknik.

  1. 1. Mathematical modeling of electromagnetic disturbances in railway system

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Farid Monsefi; Luleå tekniska universitet.; Luleå tekniska universitet.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance; Industrial Electronics; Industriell elektronik;

    Abstract : By introduction of modern electronics into railway system, new challenges in understanding the electric and electromagnetic behavior of these systems arise. In this thesis, electromagnetic modeling of electric networks above dielectric and perfect electrically conducting surfaces are studied. READ MORE

  2. 2. Maintenance related losses a study at the Swedish National Rail Administration

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Mattias Holmgren; Luleå tekniska universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kvalitetsteknik; Quality Technology and Management; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : The global competition among companies has lead to higher demands of the production system. Quality has become an important factor for competition. Customer satisfaction depends upon the fulfillment of a number of quality parameters. Two important quality parameters are dependability and safety. READ MORE

  3. 3. Maintenance-related incidents and accidents aspects of hazard identification

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Mattias Holmgren; Luleå tekniska universitet.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kvalitetsteknik; Quality Technology and Management; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : The satisfaction of stakeholders depends upon the fulfilment of their requirements. Two important stakeholder requirements related to technical systems are dependability and safety. However, system operation will gradually impair its performance leading to potentially hazardous states of the system. READ MORE

  4. 4. Development of life cycle cost model and analyses for railway switches and crossings

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Arne Nissen; Luleå tekniska universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Life Cycle Cost; RAMS; Maintenance Decision; Railway Infrastructure; Switches and Crossings; Industrial engineering and economy - Industrial organisation; administration and economics; Livscykelkostnad; RAMS; Underhållsbeslut; Järnväg; Spårväxlar; Industriell teknik och ekonomi - Industriell organisation; administration och ekonomi; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : Infrastructure managers need to have a safe and available infrastructure, so that train operators can deliver a transport product at an affordable price. In the future, as traffic volume increases, higher utilisation of the existing capacity, less time for maintenance and fewer unplanned interruptions will be critical for meeting the ever increasing need of transport capacity. READ MORE

  5. 5. Track circuits’ robustness Modeling, measurement and simulation

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Emilio Rodriguez; Luleå tekniska universitet.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Track circuit; Relay; False positive signals; Signalling in railway; Modelling; Simulation; Testing; Robustness; Interoperability; Reliability; Railway Infrastructure; Technology - Electrical engineering; electronics and photonics; Information technology - Telecommunication; Information technology - Computer engineering; Technology - Engineering physics; Information technology - Systems engineering; Teknikvetenskap - Elektroteknik; elektronik och fotonik; Informationsteknik - Telekommunikation; Informationsteknik - Datorteknik; Teknikvetenskap - Teknisk fysik; Informationsteknik - Systemteknik; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : In countries with rough weather conditions, frequent delays cause railway companies to waste time and money. Many of these delays are related to the train detection systems, as the old DC track circuits are still used in some countries, including Sweden, our case study. READ MORE