SOME PARAMETERS AFFECTING TACTILE FRICTION


DINC O., ETTLES C., CALABRESE S., SCARTON H.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, cilt.113, sa.3, ss.512-517, 1991 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 113 Konu: 3
  • Basım Tarihi: 1991
  • Doi Numarası: 10.1115/1.2920653
  • Dergi Adı: JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
  • Sayfa Sayıları: ss.512-517

Özet

The friction of a sliding tactile contact was measured in an apparatus which simulated a keyboard. Results were taken for several materials. The friction coefficient was found to decrease with increasing load and with increasing speed. Experiments at varying humidity and surface roughness helped to define the friction mechanisms. It is concluded that tactile friction is predominantly adhesive, but modified by liquid bridging between the ridges of the skin and the counterface. Increased bridging due to higher humidity causes increased friction from viscous shearing effects, while increased roughness allows fewer bridges to form, decreasing the friction.