Friction Decrease of Airbags with Air

Abstract

Higher frictional force between skin and air bag influences greatly the scratch damage of skin when an air bag was inflated and slid against skin. Reduction of the coefficient of friction is therefore desired. In this research, we proposed a new method to reduce frictional force by means of producing air lubrication between air bag made of non-coated fabric and human skin. The air could be generated, and the device which could measure frictional force was produced experimentally. Frictional force of the air bag with air was measured, and the effectiveness and efficiency was confirmed. When there are the air, the friction disk materials and fabric materials and fabric structure have nothing to do with frictional force and a coefficient of friction. The coefficient of friction is influenced by air mass flow passing fabrics.