Model for contact between finger and sinusoidal plane to evaluate adhesion and deformation component of friction.pdfVIP
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Model for contact between finger and sinusoidal plane to evaluate adhesion and deformation component of friction.pdf
Tribology International 96 (2016) 389–394
Contents lists available at ScienceDirect
Tribology International
journal homepage: /locate/triboint
Model for contact between ?nger and sinusoidal plane to evaluate adhesion and deformation component of friction$
Kenneth Duvefelt a,n, Ulf Olofsson a, Carl Michael Johannesson a, Lisa Skedung b
a Machine Design, Royal Institute of Technology (KTH), Brinellv?gen 83, SE-100 44 Stockholm, Sweden b SP Chemistry, Materials and Surfaces, SP Technical Research Institute of Sweden, Box 5607, SE-144 86 Stockholm, Sweden
article info
Article history: Received 31 July 2014 Received in revised form 9 December 2014 Accepted 22 December 2014 Available online 30 December 2014
Keywords: Finger Friction Contact area Adhesion
abstract
One of the main parameters affecting ?nger friction, friction-induced vibrations in the ?nger, and consequently tactility is surface topography. Recently Skedung et al. performed ?nger friction measurements on ?ne controlled surfaces. These surfaces were sinusoidal with wavelengths from 0.27 to 8.8 mm and amplitudes from 0.007 to 6 mm. Building on those tests an analytical model for the contact was developed to explain the differences in friction coef?cient. The contact was modelled as trapezoids in a circular pattern pressed against a sinusoidal plane. Results showed that the calculated contact area and therefore friction coef?cient corresponded well with the measurements. This model can be used to see how the different surface parameters in?uence friction.
2014 Elsevier Ltd. All rights reserved.
1. Introduction
One of the main parameters affecting ?nger friction, frictioninduced vibrations in the ?nger, and consequently tactility is surface topography. Different peaks, amplitudes and spatial distributions affect, for example, the contact area and adhesion forces, deformation and generated vibrations in the ?nger. All of these factors have a direct in?uence on how a surface feels but they also in?uence each oth
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