Sökning: "friction"

Visar resultat 16 - 20 av 803 avhandlingar innehållade ordet friction.

  1. 16. Friction and wear in rolling and sliding contacts

    Författare :Christer Spiegelberg; Sören Andersson; Roland Larsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tribology; friction; wear; rolling and sliding contacts; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : Mechanical products are always expected to perform better, last longer, be more environmentally friendly and preferably cost less. Rolling and sliding contacts are found in many mechanical products, and friction and wear in the contacts have a direct impact on the products’ ability to meet these demands. LÄS MER

  3. 17. Simulation of contact, friction and wear in gears : a finite element approach

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

    Sammanfattning : 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. LÄS MER

  4. 18. On Hertzian contact and fracture at finite friction

    Författare :Denis Jelagin; Bertil Storåkers; Pauli Pedersen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; contacts mechanics; elastic material; friction; nanoindentation; fracture; Other materials science; Övrig teknisk materialvetenskap;

    Sammanfattning : .... LÄS MER

  5. 19. On the Multi-Scale Nature of Ski-Snow Friction : Field Testing, Characterisation and Modelling of Cross-Country Ski Performance

    Författare :Kalle Kalliorinne; Andreas Almqvist; Roland Larsson; Steph Forrester; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cross-Country Skiing; Winter Sports; Winter Olympics; Multi-Scale; Sports Equipment; Contact Mechanics; Ski-Camber Profile; Ski-Base Texture; Ski; Snow; Friction; RTK-GNSS; Machine Elements; Maskinelement; Centre - Centre for Sports and Performance Technology SPORTC ; Centrumbildning - Centrum för idrotts- och prestationsteknologi SPORTC ;

    Sammanfattning : The goal of most endurance sports is to get from point A to B in the shortest time possible. Throughout the course, athletes need to overcome the resistive forces that are present in their specific sport. LÄS MER

  7. 20. Effect of rough surface anisotropy on friction in gears

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

    Sammanfattning : .... LÄS MER