Volume 11, Issue 3 (9-2021)                   ASE 2021, 11(3): 3633-3664 | Back to browse issues page

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Dehghani E, Rastegar V, Marzbanrad J. Sensitivity Analysis of Airbag Parameters on Driver’s Head Injury in a Frontal Vehicle Crash by DOE Method. ASE 2021; 11 (3) :3633-3664
URL: http://www.iust.ac.ir/ijae/article-1-543-en.html
Sensitivity Analysis of Airbag Parameters on Driver’s Head Injury in a Frontal Vehicle Crash by DOE Method
Esmail Dehghani , Vahid Rastegar , Javad Marzbanrad
School of Automotive Engineering, Iran University of Science and Technology, Tehran, Iran
Abstract:   (6982 Views)
In this study, the driver airbag geometry and internal pressure were considered as the main parameters to investigate the head injury severity in a frontal crash. The total energy absorption of an airbag was investigated in a drop test simulation and its rate was discussed by the depression distance parameter. On the other hand, the maximum deceleration of the impactor was determined to represent the airbag stiffness by a defined deceleration peak parameter. Thus, the depression distance and the deceleration peak were the objective functions for an isolated airbag under a lumped-mass impact simulation. Furthermore, an optimal matrix was generated using the design method of experiments (DOE) and yielded the airbag parameters as outputs. After the evaluation of the design parameters by the Taguchi method, the ANOVA method was used to predict the most effective parameters. Finally, a sled test with the 50% HYBRID III dummy and the defined airbag was simulated. An experimental crash was selected as the reference point to verify the simulation and to be used to compare the outcomes. Even though the objective function of depression distance showed contradictory effects to reduce the head injury severity, the results showed a %16.4 reduction in the driver head injury in a full-frontal crash.
Keywords: Crash, Airbag, Optimization, DOE, Taguchi method, ANOVA, HIC
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Type of Study: Research | Subject: Standards and tests
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