Modelling and simulation are becoming increasingly popular to help develop restraint systems and enhance the value of the design. Various types of test are being developed and used extensively in evaluating and optimising the performance of restraint systems by both OEM's and system suppliers. The use of analytical tools along with laboratory testing can help improve the effectiveness and the speed of developing and implementing a restraint system to maximise the occupant protection are described. The requirement of deployment times are shorter in side impact than in a frontal impact due to the limited space between the occupant and door structure. In the design and development of seat integrated side airbag modules, it is important to predict deployment time and pressure which are affected by the characteristics of the seat-fabric material and tear seam. The PAM-SAFE numerical simulation tool allows the authors to simulate the tearing of seat fabric and subsequent deployment of the side airbag and its complex interaction with the module and the seat foam.
Samenvatting