Sökning: "High- speed friction measurements"
Visar resultat 1 - 5 av 24 avhandlingar innehållade orden High- speed friction measurements.
1. Thermoelectric Measurements for Temperature Control of Robotic Friction Stir Welding
Sammanfattning : Friction stir welding (FSW) has undergone a rapid expansion in several industrial sectors such as in the aerospace, marine, railway and automotive sectors. Current industrial applications are mainly simple long straight welds, but there is a growth of interest in components with higher geometric complexity. LÄS MER
2. Frictional studies and high strain rate testing of wood under refining conditions
Sammanfattning : When producing thermomechanical pulps (TMP), wood chips and fiber material are loaded mechanically in a disc-refiner to separate the fibers and to make them flexible. In the process, much of the energy supplied is transferred to the fiber material through cyclic compression, shear and friction processes. LÄS MER
3. Optical Measurements of Rolling Friction Coefficients
Sammanfattning : This thesis presents an optical method to measure the rolling friction coefficientsfor balls rolling freely on a cylindrical surface. Two different models of a ball rollingfreely on a cylindrical surface are established, one is an analytical model and the otheris a numerical model derived from Lagrange equation. LÄS MER
4. Heat transfer phenomena and mould flux lubrication in continuous casting of steel
Sammanfattning : Overall thermal resistance of the mould flux was measured tomake clear the influence of the mould flux properties on theheat transfer behavior in continuous casting, especiallythermal conductivity and the formation of air gaps in thisstudy. From the investigation of the effect of the mouldsurface temperature and physical properties of the mould fluxon heat transfer through the flux film, following knowledge hasbeen obtained. LÄS MER
5. Thermomechanics of block brakes
Sammanfattning : Friction in sliding contacts plays an important role in tribology. Applications can be found in many engineering fields such as braking of vehicles in which friction brakes are by far the most common. Thus, an understanding of the mechanisms involved in friction brakes has become more important as the demands on brakes increase. LÄS MER