Assessment of Air Bag Module Durability Test Specifications Using CAE Techniques 960972
Several air bag module vibration testing issues are identified. Eight OEM air bag module vibration test specifications are compared in terms of predicted fatigue lives using computer simulation. The specifications differ significantly in the type of loading (sine sweep, fixed sine and random), frequency range, and test duration. The comparison results indicate large variation in the relative severity of specifications based on the computed fatigue lives. This variation indicates that a more standardized approach for deriving representative vibration test specifications is desirable. The unrepresentative specifications can lead to overdesigned components, diminishing the value of the air bag system.
Experimental results used to validate the analytical predictions are presented along with the simulation results. A computer program developed to perform the fatigue life calculations for both sine sweep and random vibrations is also described. Several suggestions for developing representative specifications are provided.
Citation: Konert, J., Lee, C., and Bayley, G., "Assessment of Air Bag Module Durability Test Specifications Using CAE Techniques," SAE Technical Paper 960972, 1996, https://doi.org/10.4271/960972. Download Citation
Author(s):
Jaroslaw A. Konert, Chuan S. Lee, Gregory S. Bayley
Affiliated:
TRW Vehicle Safety Systems Inc.
Pages: 13
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1996 Transactions - Journal of Passenger Cars-V105-6
Related Topics:
Airbag systems
Computer simulation
Fatigue
Vibration
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