TY - BOOK ID - 8136824 TI - Transient Effects in Friction : Fractal Asperity Creep PY - 2013 SN - 3709116864 3709115051 370911506X PB - Vienna : Springer Vienna : Imprint: Springer, DB - UniCat KW - Fractals. KW - Friction. KW - Friction KW - Materials KW - Mechanical Engineering KW - Engineering & Applied Sciences KW - Mechanical Engineering - General KW - Simulation methods KW - Creep KW - Fractal geometry KW - Fractal sets KW - Geometry, Fractal KW - Sets, Fractal KW - Sets of fractional dimension KW - Engineering. KW - Continuum mechanics. KW - Mechatronics. KW - Thin films. KW - Continuum Mechanics and Mechanics of Materials. KW - Surfaces and Interfaces, Thin Films. KW - Surfaces. KW - Dimension theory (Topology) KW - Mechanics KW - Bearings (Machinery) KW - Tribology KW - Mechanics. KW - Mechanics, Applied. KW - Surfaces (Physics). KW - Solid Mechanics. KW - Physics KW - Surface chemistry KW - Surfaces (Technology) KW - Applied mechanics KW - Engineering, Mechanical KW - Engineering mathematics KW - Classical mechanics KW - Newtonian mechanics KW - Dynamics KW - Quantum theory KW - Materials—Surfaces. KW - Films, Thin KW - Solid film KW - Solid state electronics KW - Solids KW - Coatings KW - Thick films KW - Mechanical engineering KW - Microelectronics KW - Microelectromechanical systems UR - https://www.unicat.be/uniCat?func=search&query=sysid:8136824 AB - Transient friction effects determine the behavior of a wide class of mechatronic systems. Classic examples are squealing brakes, stiction in robotic arms, or stick-slip in linear drives. To properly design and understand mechatronic systems of this type, good quantitative models of transient friction effects are of primary interest. The theory developed in this book approaches this problem bottom-up, by deriving the behavior of macroscopic friction surfaces from the microscopic surface physics. The model is based on two assumptions: First, rough surfaces are inherently fractal, exhibiting roughness on a wide range of scales. Second, transient friction effects are caused by creep enlargement of the real area of contact between two bodies. This work demonstrates the results of extensive Finite Element analyses of the creep behavior of surface asperities, and proposes a generalized multi-scale area iteration for calculating the time-dependent real contact between two bodies. The toolset is then demonstrated both for the reproduction of a variety of experimental results on transient friction as well as for system simulations of two example systems. ER -