Search for dissertations about: "gear"

Showing result 1 - 5 of 131 swedish dissertations containing the word gear.

  1. 1. Gear noise and vibration : influence of gear finishing method and gear deviations

    University dissertation from Stockholm : Maskinkonstruktion

    Author : Mats Åkerblom; [2002]
    Keywords : Gear; Gerbox; Noise; Vibration; Transmission error; Dynamic models;

    Abstract : .... READ MORE

  2. 2. Gear tribology : friction and surface topography

    University dissertation from Göteborg : Chalmers university of technology

    Author : Li Xiao; Bengt-Göran Rosén; Liam Blunt; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; Surface topography; Toughness; Lay; Gears; Power transmission; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The quest for energy efficiency leads to the development of highly efficient power transmissions for vehicles. Gears are some of the most rugged and durable torque transmitters among machine elements. Friction between sliding surfaces at gear teeth is one major source of power loss. READ MORE

  3. 3. Gear Surface Machining for Noise Suppression

    University dissertation from Göteborg : Chalmers university of technology

    Author : Naser Amini; [1999]
    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

  4. 4. On tribological design in gear tooth contacts

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Ellen Bergseth; Ulf Olofsson; Karsten Stahl; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction; gear contact; gear manufacturing; surface boundary layers; surface topography; wear;

    Abstract : The correct tribological design will have a considerable effect on a gear’s service life and efficiency. The purpose of this thesis is to clarify the impact of variation in the gear tooth flank tribological system on the gear contact load capacity – to increase the understanding of how surface topography and lubricant interact. READ MORE

  5. 5. On the Machining of Involute Helical Gears - Prediction models on tool geometry, cut gear tooth surface topography, chip geometry, and tool cutting forces

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Mattias Svahn; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gear hobbing; Gear milling; Chip geometry; Cutting forces; Surface topography; Tool wear;

    Abstract : The modern requirements on power transmissions focus on energy efficiency, low noise and dynamic vibrations, and power density. In order to meet these requirements, the gear wheels must be manufactured to very high precision. Additionally, it should be economical to manufacture these gears within the tight requested tolerances. READ MORE