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Role of Fingerprint Mechanics and non-Coulombic Friction in Ultrasonic Devices

Archive ouverte : Communication dans un congrès

Vezzoli, Eric | Brigyda, Ddzidek | Sednaoui, Thomas | Giraud, Frédéric | Michael, Adams | Lemaire-Semail, Betty

Edité par HAL CCSD

International audience. Ultrasonic vibration of a plate can be used to modulate the friction of a finger pad sliding on a surface. This modulation can modify the user perception of the touched object and induce the perception of textured materials. In the current paper, an elastic model of finger print ridges is developed. A friction reduction phenomenon based on non-Coulombic friction is evaluated based on this model. Then, a comparison with experimental data is carried out to assess the validity of the proposed model and analysis.

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