Search for dissertations about: "TRANSMISSION gears"

Showing result 1 - 5 of 26 swedish dissertations containing the words TRANSMISSION gears.

  2. 1. Simulation of contact, friction and wear in gears : a finite element approach

    Author : Olle Lundvall; Linköpings universitet; []
    Keywords : Gears; Gear noise; Contact mechanics; Simulation; Friction; Wear; Transmission error;

    Abstract : In this thesis, resent methods in computational contact mechanics is brought into the process of gear design. The finite element method is used to model two elastic bodies in contact. By defining a contact interface between these two bodies, constitutive laws, regarding normal contact, friction and wear, are included. READ MORE

  4. 2. Effect of rough surface anisotropy on friction in gears

    Author : Li Xiao; Bengt-Göran Rosén; Naser Amini; Sweden Göteborg Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; Surface topography; Roughness; Lay; Gears; Efficiency; Power transmission; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : .... READ MORE

  5. 3. On the running-in of gears

    Author : Sören Sjöberg; Ulf Olofsson; Anders Flodin; KTH; []
    Keywords : gears; gear manufacturing; running-in; surface topography; contact area ratio; manganese phosphate; Mechanical engineering; Maskinteknik;

    Abstract : The general trend in gear industry, today, is an increased focus on gear transmission efficiency. Gear transmission efficiency losses arise from loaded and unloaded gear contacts, seals, lubricant and bearings. One way of minimising the losses is to lower the lubricant viscosity. This will reduce the speed dependent losses. READ MORE

  6. 4. Surface Integrity Characterization of Gears with respect to Running-in

    Author : Dinesh Mallipeddi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; micropitting; surface asperities; running-in; surface roughness; residual stresses; Gears; surface chemistry;

    Abstract : A gearbox with gears of different sizes is part of a vehicle transmission system that plays an important part in transmitting the engine power to the wheels. The efficient energy transmission highly relies on the performance of gears. Together, the mesh efficiency and durability determines the gear performance. READ MORE

  7. 5. Gear tribology : friction and surface topography

    Author : Li Xiao; Bengt-Göran Rosén; Liam Blunt; Högskolan i Halmstad; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 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