Measurement of the Dynamic Permeability of Airbag Fabrics
The accepted standards for measuring fabric permeability have been recognized not ideal for airbag fabrics, as they were designed to measure clothing, tent fabric, parachutes working under relatively low pressure. A new method for measuring the dynamic permeability of airbag fabrics is proposed in this paper. The measuring arrangement is composed of a driver chamber and a driven chamber separated by a polyester diaphragm. An airbag fabric sample is clamped at the end of the open driven chamber. When the driver chamber is charged with air to some pressure, the diaphragm ruptures. Meanwhile the air in the driver chamber discharges into the driven chamber. A high pressure is built up in the driven chamber in a very short time and then decreases gradually due to the permeable structure of the airbag fabrics. The air permeability of the airbag fabric over a range of pressure levels are thus determined simultaneously by measuring the pressure trace in the driven chamber. Three kinds of Nylon 66 airbag fabric are evaluated using the method proposed.
Xinhou Wang Jingjing Xu Lizhe Sun Jianping Yang
College of Textiles, Donghua University, Shanghai 201620, China
国际会议
上海
英文
25-28
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）