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A Two Dimensional Model for the Dynamical Contact of Elastic Rough Surfaces
Author(s) -
Neuhaus Jan,
Sextro Walter
Publication year - 2014
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201410101
Subject(s) - mechanics , surface finish , rough surface , surface roughness , contact area , ode , damper , point (geometry) , spring (device) , contact mechanics , materials science , mathematics , mathematical analysis , physics , engineering , structural engineering , geometry , finite element method , composite material
To model the contact behavior including dynamical effects, a two dimensional mechanical model of elastic rough contact is developed. This model can simulate the contact behaviour between two rough surfaces depending on normal pressure, sliding speed and roughness profiles. The contact between two rough surfaces is reduced to a rough rigid and a rough elastic layer. The elastic layer is modeled by point masses connected by spring‐damper elements. The total system is described by coupled ODEs. The number of ODEs and thus the degree of freedom of the model depends on the varying contact conditions. The contact conditions are monitored during the simulation and the simulation interrupts, in case the contact conditions change. The equations of motion are then adapted with respect to the contact constraints. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)