The tactile perception of a surface texture originates from scanning a finger on the surface. This kind of sliding contact activates the mechanoreceptors located into the skin, allowing the brain to identify the object and to perceive information about the scanned surface. Perception is collected by mechanoreceptors either by sensing pressure or by sensing vibration: the first mechanism is typical of large spaced surface textures, while the second is necessary to perceive finer textures. These different behaviors are well known in the literature as the duplex perception mechanism. In the present paper a numerical model describing finger-surface scanning is introduced in order to investigate the relationship between contact induced vibrations and scanning conditions. The model has been validated by experimental comparisons in a previous work. The perception model is used to develop a parametric analysis of the vibration induced from the finger-surface scanning as a function of surface geometry, scanning speed and contact force. The proposed parametric analysis points out the minimum number of parameters needed to describe the tactile perception of a periodic texture, and it shows the tribological reasons for which duplex perception mechanism is an effective biological evolution towards optimal tactile perception.

A contact mechanics interpretation of the duplex theory of tactile texture perception / Fagiani, Ramona; Barbieri, Marco. - In: TRIBOLOGY INTERNATIONAL. - ISSN 0301-679X. - STAMPA. - 101:(2016), pp. 49-58. [10.1016/j.triboint.2016.03.031]

A contact mechanics interpretation of the duplex theory of tactile texture perception

BARBIERI, MARCO
2016-01-01

Abstract

The tactile perception of a surface texture originates from scanning a finger on the surface. This kind of sliding contact activates the mechanoreceptors located into the skin, allowing the brain to identify the object and to perceive information about the scanned surface. Perception is collected by mechanoreceptors either by sensing pressure or by sensing vibration: the first mechanism is typical of large spaced surface textures, while the second is necessary to perceive finer textures. These different behaviors are well known in the literature as the duplex perception mechanism. In the present paper a numerical model describing finger-surface scanning is introduced in order to investigate the relationship between contact induced vibrations and scanning conditions. The model has been validated by experimental comparisons in a previous work. The perception model is used to develop a parametric analysis of the vibration induced from the finger-surface scanning as a function of surface geometry, scanning speed and contact force. The proposed parametric analysis points out the minimum number of parameters needed to describe the tactile perception of a periodic texture, and it shows the tribological reasons for which duplex perception mechanism is an effective biological evolution towards optimal tactile perception.
101
49
58
A contact mechanics interpretation of the duplex theory of tactile texture perception / Fagiani, Ramona; Barbieri, Marco. - In: TRIBOLOGY INTERNATIONAL. - ISSN 0301-679X. - STAMPA. - 101:(2016), pp. 49-58. [10.1016/j.triboint.2016.03.031]
Fagiani, Ramona; Barbieri, Marco
File in questo prodotto:
File Dimensione Formato  
A contact mechanics interpretation of the duplex theory of tactile texture perception.pdf

non disponibili

Descrizione: Articolo in rivista
Tipologia: Versione pubblicata dall'editore
Dimensione 3.44 MB
Formato Adobe PDF
3.44 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1119208
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 16
social impact