Search for dissertations about: "gears"

Showing result 11 - 15 of 79 swedish dissertations containing the word gears.

  2. 11. Modelling and Simulation of Gearset Behavior : Effects of Manufacturing Errors and Electrification

    Author : Rikard Hjelm; Maskinelement; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrification; gears; LTCA; tip contact; pitch error; profile slope error; transmission error; tolerance; scrapping; lubrication; TEHL; optimization;

    Abstract : Due to electrification, new demands are imposed on gears regarding e.g., quality, noise, lubrication, and gear ratio.Therefore, a better understanding of gearset meshing and operation is needed. READ MORE

  4. 12. Gear Surface Machining for Noise Suppression

    Author : Naser Amini; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gear grinding; gear shaving; gears; undulation; surface topography; noise; automotive gearboxes; ghost harmonics; gear honing;

    Abstract : Gear noise in modern automobiles is unacceptable. It has different sources, such as design parameters and manufacturing errors. Manufacturing errors, for example, can be reduced using advanced grinding operations. However, sometimes grinding operations can introduce micro-geometry deviations that cause severe noise problems. READ MORE

  5. 13. An approach for systematic process planning of gear transmission parts

    Author : Mats Bagge; Bengt Lindberg; Maguns Wiktorsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; process planning; machining; gears; beredning; bearbetning; kugg; Manufacturing engineering; Produktionsteknik;

    Abstract : The objective of this thesis is to find and develop methods that enhance and support the creation of evolvable master process plans with possibilities to challenge productivity and meet changing design requirements. The condition for achieving this is primarily that both the fundamental thinking and the results behind a process plan can be described. READ MORE

  6. 14. On design methods for mechatronics : servo motor and gearhead

    Author : Fredrik Roos; Jan Wikander; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; mechatronics design methodology; servo systems; electric motors; gears; auxiliary systems; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Abstract : The number of electric powered sub-systems in road-vehicles is increasing fast. This development is primarily driven by the new and improved functionality that can be implemented with electro-mechanical sub-systems, but it is also necessary for the transition to electric and hybrid-electric drive trains. READ MORE

  7. 15. Hardening Distortions of Serial Produced Gears

    Author : Anders Olofsson; Stefan Jonsson; Julia Gerth; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hardening distortions; crown wheel; main shaft gear; gear runout; back-face tilt; macrosegregation; ingot casting; continuous casting; case hardening; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : Hardening distortions are unwanted changes in shape and dimension that arise during hardening of steel components. Uncontrolled distortions induce random errors to the manufacturing process, and have a strong negative impact on manufacturing costs. READ MORE