Abstract
It aims to establish a method of measuring friction drag of bio-material under unsteady moving condition by using a motion capture system. The model covered with several materials was fallen in a water tank by gravity, and measured each speed by using a high speed video camera. We carried out the estimation of friction drag of the bio-material surface by an unsteady motion equation. In this study, the materials we evaluated were a hydrophobic cloth, artificial skins and a sea snake skin. As a result, the hairless artificial skin showed the smallest drag-coefficient and the hydrophobic cloth the largest.
