Sökning: "friction"

Visar resultat 11 - 15 av 908 uppsatser innehållade ordet friction.

  1. 11. Impact of Frame Stiffness on Tribological Behaviour of Sliding Interfaces

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Nisha Singh; [2023]
    Nyckelord :coefficient of friction; friction-vibration interaction; stiffness; tribometer; vibrations; friktionskoefficient; friktion-vibrationsinteraktion; styvhet; tribometer; vibrationer;

    Sammanfattning : Friction and wear have been concerns to industrialists, scientists and environmentalist for several decades. Many robust models have been developed to address friction and wear and their dependency on various parameters. Numerous experiments have been conducted in the past to model friction and wear. LÄS MER

  3. 12. High Temperature Tribology of Exhaust Components in Alternative Fuel Engines

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Muhammad Hashir Zaheer; [2023]
    Nyckelord :High temperature tribology; Wear; Friction; Exhaust manifold; Lip seal ring; Wear resistant coatings; Inconel 718c; SiMo51 ductile cast iron; AlTiN; Tribaloy 400;

    Sammanfattning : Internal Combustion Engine (ICE) exhaust components are exposed to extreme operating temperatures. Thus, it is necessary that they are designed with materials that can sustain thermal and vibrational stresses. LÄS MER

  4. 13. “Ett liv utan frihet, vad är det?” : Berättelser om svensk psykiatri vård under 1940-talet fråninsidan av institutionerna

    Magister-uppsats, Umeå universitet/Institutionen för idé- och samhällsstudier

    Författare :Tove Ljuslinder; [2023]
    Nyckelord :Folkhemmet; Sinnessjukvård; Funktionshinder Historia; 1940-talet; Astrid Väring; De psykiskt sjukas väl; Mentalvård; institutionalisering.;

    Sammanfattning : A life without freedom, what is that? This question was stated in a letter from a man institutionalized at one of Sweden’s mental asylums in the 1940s. It is also the title of this essay which explores the life and experiences of institutionalized individuals during 1941–1949. LÄS MER

  5. 14. Multiscale & Multiphysics Modelling of Thrust Pad (Air) Bearings

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Nipon Roy; [2023]
    Nyckelord :Finite element modelling; Air bearing; Multiphysics simulations; Air lubrication; surface texture; Topology optimization;

    Sammanfattning : Without lubrication, machines are not imaginable to perform over a long period of time and complete their designated operations. With its omnipresent availability, the air is capable of functioning as a lubricant in long operations very efficiently. Moreover, thrust bearings support axial loads and transmit power at the same time under heavy loads. LÄS MER

  7. 15. Bakom chefernas masker; En kvalitativ studie om chefers upplevelse av sin chefsroll och si själva i kriser

    Kandidat-uppsats, Lunds universitet/Företagsekonomiska institutionen

    Författare :Ida Holmer; Sofie Säterdal; Victoria Ingrid Malmberg; [2023]
    Nyckelord :Managerial role; crisis; identity work; social identity; self identity; Conservation of Resources Theory; Business and Economics;

    Sammanfattning : Purpose: The purpose of this thesis paper is to create a deeper understanding of how managers perceive their manager role and themselves in a crisis. Furthermore we would like to make a theoretical contribution to the existing literature regarding manager’s identity work and crisis management by investigating how managers perceive their identity work in a crisis. LÄS MER