Curtain airbag gas delivery system development using CFD analysis

Pang, Hyunsok; Massa, Joseph

Affiliations

¹Key Safety Systems, Inc., United States

Abstract

This paper describes curtain airbag gas delivery system development work using CFD analysis. The objective of developing gas delivery system was to achieve uniform inflation and reasonable time to position for oblique pole test with 5th %ile female. CFD analysis has been conducted to design gas delivery system of 3 row curtain airbag. The gas delivery system consists of T-diffuser and flexible gas delivery tube. T-diffuser hole sizes and the hole sizes in flexible gas delivery tube system have been determined through CFD simulations. Confirmation static deployment test has been conducted to confirm the design specification from CFD analysis. In the static deployment test, pressure ports were installed to measure the pressure at several locations in the curtain airbag. It was found that the bag kinematics and pressures in the test were close to the simulation kinematics and results.

Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/esv/esv20/07-0208-W.pdf

Cited By (1)

Year	Entry
2009	Kim E-S, Cho J-S, Kwak D-Y, Lee S-H, Jeong H-Y, Kim C-S, Cho K-S. Development of test methods for evaluateing curtain airbag dployment force. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.