Torres et al., Friction reduction with longitudinal vibration, IEEE Haptics Symposium 2022
Channel: IEEE Haptics Symposium
Date: 2022-03-15

D.A. Torres, E. Vezzoli, B. Lemaire-Semail, M. Adams, C. Giraud-Audine, F. Giraud, M. Amberg, Mechanisms of Friction Reduction in Longitudinal Ultrasonic Surface Haptic Devices with Non-Collinear Vibrations and Finger Displacement, Proceedings of IEEE Haptics Symposium 2022, 
Abstract: Friction reduction using ultrasonic longitudinal surface vibration can modify the user perception of the touched surface and induce the perception of textured materials. In the current paper, the mechanisms of friction reduction using longitudinal vibration are analyzed at different finger exploration velocities and directions over a plate. The development of a non-Coulombic adhesion theory based on experimental results is evaluated as a possible explanation for friction reduction with vibrations that are non-collinear with the finger displacement. Comparison with experimental data shows that the model adequately describes the reduction in friction, although it is less accurate for low finger velocities and depends on motion direction. 
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