Department of Electrical Engineering, Tshwane University of Technology, Private Bag 7680, Pretoria, South Africa; Laboratoire D'Électrotechnique et D'Électronique de Puissance de Lille, IRCICA, Université Lille 1, 50 Av. Halley, Villeneuve d'Ascq, France
M'Boungui, G., Department of Electrical Engineering, Tshwane University of Technology, Private Bag 7680, Pretoria, South Africa; Lemaire-Semail, B., Laboratoire D'Électrotechnique et D'Électronique de Puissance de Lille, IRCICA, Université Lille 1, 50 Av. Halley, Villeneuve d'Ascq, France; Giraud, F., Laboratoire D'Électrotechnique et D'Électronique de Puissance de Lille, IRCICA, Université Lille 1, 50 Av. Halley, Villeneuve d'Ascq, France
As a solution to cope with the lack of compactness and simplicity often encountered in haptic interfaces, we propose a device based on friction coefficient control principle. This device includes polarised piezoceramics well adjusted and glued to a 64x38x3 mm copperberyllium plate supported by four legs. Then, properly energised around a resonant frequency, with legs at antinodes, a stationary wave is created in the plate. Variable friction forces between the legs and the plane substrate are created by the control of the wave amplitude, according to electro-active lubrication. So the user obtains force feedback by holding the plate, and moving it on a plane substrate, as he could do with a mouse interface. Preliminary psychophysical evaluation trends to assess the validity of the device as a force feedback interface. © 2014 Lavoisier.
Actuators; Friction; Haptic interfaces; Interfaces (materials); Lubrication; Natural frequencies; Piezoelectric ceramics; Piezoelectricity; Control principle; Electro actives; Force feedback devices; Friction coefficients; Haptic; Lack of compactness; Psychophysical evaluation; Variable frictions; Piezoelectric actuators