Sökning: "bearing losses"

Visar resultat 6 - 10 av 34 uppsatser innehållade orden bearing losses.

  1. 6. Development of Test Rig and Experimental Evaluation of Hydrostatic Bearings for an Axial Flux Machine

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Amir Avdic; Kishore-Babu Vejendla; [2022]
    Nyckelord :viscous losses; hydrostatic bearing; hydrodynamics; thin oil film.; Viskösa förluster; generator; hydrostatiska lager; hydrodynamik; tunn oljefilm.;

    Sammanfattning : A novel electric machine design, similar to an axial flux machine, incorporates hydrostatic bearings to increase efficiency and stability of said machine. In this thesis, the feasibility of a hydrostatic solution is explored and evaluated by development, manufacturing, and assembly of a test rig, as well as running experimental tests with it. LÄS MER

  3. 7. Statistical analysis of firefighting and damage caused by fire in mid-rise timber-framed residential buildings compared to other construction types

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Thomas Berg; [2021]
    Nyckelord :Statistical analysis; timber-framed; residential; firefighting; damage caused by fire; PRONTO; NFID; linear regression; summary statistics; Technology and Engineering;

    Sammanfattning : The contribution of greenhouse gas emissions in the production of construction materials has sparked a new interest and recent changes in building regulations regarding the use of renewables like wood as the main component in load-bearing elements. Recent regulation changes focus on allowing taller timber structures which bides the question of how to adequately maintain an acceptable level of fire protection considering the characteristically flammable properties of wood-based products. LÄS MER

  4. 8. Lagerkrafter och friktionsförluster i svänghjulssystem

    Kandidat-uppsats,

    Författare :Jonathan Carlgren; Per William Oskarsson; Emil Söderman; Johan Bürger; [2021]
    Nyckelord :Svänghjul; energilagring; energi; SKF; rullager; reaktionskraft; friktion; energiförlust; gyroskopisk kraft; mekanisk obalans;

    Sammanfattning : Reliable energy storage systems are necessary in modern sustainable societies. Storing energy in a spinning flywheel is an old technology which is further investigated in this project. LÄS MER

  5. 9. Active Control of High­-Speed Flexible Rotors on Controllable Tilting­-Pad Journal Bearings : Theory and Experiment

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Paul-Henrik Bull; [2021]
    Nyckelord :ATPJB; Fluid-Film Lubrication; Model based control; Vibration Control;

    Sammanfattning : A common choice of bearing for industrial applications such as turbomachinery and rotating compressors is the Tilting-Pad Journal Bearing (TPJB) due to its excellent stability properties. TPJB's are however limited by the reduction of damping in the fluid film at high velocities. LÄS MER

  7. 10. Guidelines for Integrated Flood Control Design in the Informal Settlements of Cape Town Municipality : A case study of Kosovo Informal Settlement in Philippi District

    Master-uppsats, KTH/Urbana och regionala studier

    Författare :Erasmus Mseleku; [2021]
    Nyckelord :climate change; community participation; flooding; informal settlements; integrated water management systems; nature-based solutions; spatial inequality; sustainability; urban flooding;

    Sammanfattning : Flooding over the last few years has become the most frequent and devastating of the natural disasters. This has accounted for approximately half of the death-rate and a third of economic losses as a result of weather-related events. LÄS MER