Contact of a Finger on Rigid Surfaces and Textiles: Friction Coefficient and Induced Vibrations
Article dans une revue avec comité de lecture
Auteur
FAGIANI, Ramona
31214 Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] [LaMCoS]
31214 Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] [LaMCoS]
MASSI, Francesco
31214 Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] [LaMCoS]
31214 Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] [LaMCoS]
Date
2012Journal
Tribology LettersRésumé
The tactile information about object surfaces is obtained through perceived contact stresses and frictioninduced vibrations generated by the relative motion between the fingertip and the touched object. The friction forces affect the skin stress-state distribution during surface scanning, while the sliding contact generates vibrations that propagate in the finger skin activating the receptors (mechanoreceptors) and allowing the brain to identify objects and perceive information about their properties. In this article, the friction coefficient between a real human finger and both rigid surfaces and fabrics is retrieved as a function of the contact parameters (load and scanning speed). Then, the analysis of the vibration spectra is carried out to investigate the features of the induced vibrations, measured on the fingernail, as a function of surface textures and contact parameters. While the friction coefficient measurements on rigid surfaces agree with empirical laws found in literature, the behaviour of the friction coefficient when touching a fabric is more complex, and is mainly the function of the textile constructional properties. Results show that frequency spectrum distribution, when touching a rigid surface, is mainly determined by the relative geometry of the two contact surfaces and by the contact parameters. On the contrary, when scanning a fabric, the structure and the deformation of the textile itself largely affect the spectrum of the induced vibration. Finally, some major features of the measured vibrations (frequency distribution and amplitude) are found to be representative of tactile perception compared to psychophysical and neurophysiologic works in literature.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Communication sans acteSELMI, Jaouher; COSTES, Jean-Philippe; CARRAS, Patrice; LORONG, Philippe; POULACHON, Gerard (Congrès Français de Mécanique, 2013)Machine tool is the most used manufacturing means in automotive industry. This kind of manufacturing machine is very expensive and has immediate influence on produced workpiece quality. During machining process design, a ...
-
Communication avec acteSELMI, Jaouher; COSTES, Jean-Philippe; CARRAS, Patrice; LORONG, Philippe; POULACHON, Gerard (MM Science Journal, 2014)It is proposed to apply a methodology in order to evaluate the ability of different machining systems (Spindle/Tool) to run a reaming process in a stable way.The methodology is based on an experimental measurement of the ...
-
Communication avec acteUne méthodologie est proposée dans cet article dans le but de faciliter l’évaluation de la stabilité d’une opération de fraisage, pour une broche, un outil et une position connue de la broche dans son espace de travail. ...
-
Article dans une revue avec comité de lectureSELMI, Jaouher; COSTES, Jean-Philippe; CARRAS, Patrice; LORONG, Philippe; POULACHON, Gerard (Springer Verlag, 2016)This article presents an original study about the dynamic of a machining operation based on the coupling receptance methodology. The Frequency Response Function (FRF) of a machine tool is numerically coupled with the FRF ...
-
Article dans une revue avec comité de lectureSELMI, Jaouher; COSTES, Jean-Philippe; CARRAS, Patrice; LORONG, Philippe; POULACHON, Gerard (Springer Verlag, 2016)This article presents an original study about the dynamic of a machining operation based on the coupling receptance methodology. The Frequency Response Function (FRF) of a machine tool is numerically coupled with the FRF ...