Search for dissertations about: "Dry sliding"

Showing result 1 - 5 of 30 swedish dissertations containing the words Dry sliding.

  2. 1. Analysis and Applications of Minimum Quantity Lubrication (MQL)

    Author : Bulent Tasdelen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dry; compressed air; sliding; MQL; temperature; nozzle; oil amount; seizure; tool wear; tool-chip contact surface topography.; contact length;

    Abstract : One of the greatest obstacles to the implementation of MQL is “lack of knowledge” which also limits the expansion of its usage. The presented work aims to take a step toward a better understanding of the mechanisms that occur in MQL assisted machining. READ MORE

  4. 2. Minimum Quantity Lubrication

    Author : Bulent Tasdelen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; contact length; sliding; MQL; seizure; tool-chip contact surface topography; nozzle; temperature; oil amount; compressed air; dry; tool wear;

    Abstract : .... READ MORE

  5. 3. Tribology of self-lubricating polymer composites for hydropower applications

    Author : Maria Rodiouchkina; Jens Hardell; Kim Berglund; Jan Ukonsaari; Michał Wasilczuk; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polymer composites; hydropower; sliding wear; sliding friction; self-lubricating; transfer layers; material characterization; surface analysis; high contact pressure; low sliding speed; Machine Elements; Maskinelement;

    Abstract : The ongoing global climate crisis and its impacts calls for urgent actions, such as significant reduction of CO2 emissions by introducing more renewable energy. This has led to a rapid integration of variable power sources, such as wind and solar power, into the electricity systems. READ MORE

  6. 4. Transient vibrations from dry clutch operation in heavy-duty truck powertrains : Modelling, simulation and validation

    Author : Jakob Sjöstrand; Leif Kari; Ines Lopez Arteaga; Per Erik Austrell; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dry clutch system; Engagement; Disengagement; Dry-friction; LuGre friction model; Heavy-truck powertrain; Teknisk mekanik; Engineering Mechanics;

    Abstract : For internal combustion engines used in heavy-duty vehicles, increased engine efficiency and consequently reduced CO2 emissions can be obtained if the engine speed can be kept within an optimal speed range. This requires swift and frequent gear shifts where the dry friction clutch is utilized. READ MORE

  7. 5. On Adhesion and Galling in Metal Forming

    Author : Magnus Hanson; Sture Hogmark; Ulf Olofsson; Uppsala universitet; []
    Keywords : Engineering physics; adhesion; galling; dry sliding; stainless steel; vanadium nitride; metal forming; Teknisk fysik;

    Abstract : Metal forming is widely used in the industry to produce cans, tubes, car chassis, rods, wires etc. Forming certain materials such as stainless steel, aluminium and titanium, is often difficult, and problems associated with transfer of work material to the tool material are frequent. READ MORE