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A Macro Model for Electroadhesive Contact of a Soft Finger With a Touchscreen
Malmö University, Faculty of Technology and Society (TS), Department of Materials Science and Applied Mathematics (MTM). State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030, China.ORCID iD: 0000-0003-4054-3854
State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030, China; School of Engineering, Cardiff University, Cardiff, CF24 3AA, United Kingdom.
2020 (English)In: IEEE Transactions on Haptics, ISSN 1939-1412, E-ISSN 2329-4051, Vol. 13, no 3, p. 504-510Article in journal (Refereed) Published
Abstract [en]

A contact problem of electroadhesion for a conductive elastic body pressed against a rigid plane surface of a dielectric coating covering a conductive substrate is formulated applying the Johnsen-Rahbek approximation for the attractive surface stresses and the Derjaguin-Muller-Toporov (DMT) hypothesis about the influence of the adhesive stresses on the deformable shape of the elastic body. An approximate solution is obtained using the Winkler-Fuss deformation model with the equivalent (contact load dependent) stiffness coefficient evaluated according to the Xydas-Kao soft finger model. The friction force under applied voltage is evaluated as the product of the coefficient of friction and the integral of the macro contact pressure over the apparent contact area. The upper and lower estimates for the friction force are discussed in the case of absence of any external normal load.

Place, publisher, year, edition, pages
IEEE, 2020. Vol. 13, no 3, p. 504-510
Keywords [en]
Load modeling, Force, Friction, Mathematical model, Strain, Deformable models, Solids, Electroadhesion, elastic contact, soft finger, friction force, Winkler-Fuss deformation model
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:mau:diva-18659DOI: 10.1109/TOH.2020.2969628ISI: 000564299200006PubMedID: 31995499Scopus ID: 2-s2.0-85079451297OAI: oai:DiVA.org:mau-18659DiVA, id: diva2:1476772
Available from: 2020-10-15 Created: 2020-10-15 Last updated: 2024-06-17Bibliographically approved

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Argatov, Ivan I

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