Search for dissertations about: "High- speed friction measurements"

Showing result 16 - 20 of 24 swedish dissertations containing the words High- speed friction measurements.

  2. 16. Experiments on sheet metal shearing

    Author : Emil Gustafsson; Magnus Eriksson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics; Simulering av klippning i höghållfast stål;

    Abstract : Within the sheet metal industry, different shear cutting technologies are commonly used in several processing steps, e.g. in cut to length lines, slitting lines, end cropping etc. READ MORE

  4. 17. Mechanical Modelling of Powder Compaction : Due to Corona is not possible to attend this defense in person, instead attend via this link: https://play.kth.se/media/t/0_mbkr2jhi​

    Author : Hjalmar Staf; Per-Lennart Larsson; Göran Frenning; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : Cutting tool inserts, for instance used in steel machining, have the requirement to be toughand are therefore most often manufactured out of cemented carbides, using powdermetallurgy. Manufacturing components with powder metallurgy has its advantages in highproductivity and good net shape. READ MORE

  5. 18. Advanced measurement and modelling methods for noise source analysis

    Author : Matti Rantatalo; Mats Åbom; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Abstract : In daily life sound is a vital dimension for the perception of the world around us but can in some cases be considered as annoying, irritating, or even harmful. In these cases the sound is labelled as noise and can be addressed in two ways, either by insulating the noise problem from the receiver (person) or by altering the source. READ MORE

  6. 19. Lubrication of elastohydrodynamic contacts, mainly concerning low temperature

    Author : Jan Ove Östensen; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Abstract : The limiting shear stress coefficient has been studied in a impacting ball apparatus for four different lubricating oils at -30ºC and 20ºC. The results show that the most interesting effects are; oil type, maximum contact pressure, temperature, and the interaction between the above mentioned parameters. READ MORE

  7. 20. Brake Judder

    Author : Helena Jakobsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Brake judder is a braking induced, forced vibration occurring in different types of vehicles. The frequency can be as high as 500 Hz, but usually remains below 100 Hz and often as low as 10-20 Hz. The driver experiences judder as vibrations in the steering wheel, brake pedal and floor. READ MORE