Modal Superimposition for Multi-fingers Variable Friction Tactile Device

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Ghenna, Sofiane | Giraud-Audine, Christophe | Giraud, Frédéric | Amberg, Michel | Semail, Betty

Edité par HAL CCSD

International audience. In this study, we develop and implement a method for superimposing two vibration modes in order to produce different tactile stimuli on two fingers located in different positions. The tactile stimulation is based on the squeeze film effect which decreases the friction between a fingertip and a vibrating plate. Experimental test have been conducted on a 1D tactile device. They show that it is possible to continuously control the friction on two fingers moving independently. Then, we developed the design of a 2D device based on the same principle, which gives rise to the design of a two-fingers tactile display. Evaluations were conducted using a modal analysis with experimental validation.

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