| 제목 |
ESTIMATION OF WHOLE-BODY INJURY METRICS FOR EVALUATING EFFECT OF AIRBAG DEPLOYMENT
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| 분야 |
Body and Safety |
| 언어 |
English |
| 저자 |
Taewung Kim(Tech University of Korea), Kihoon Song(Tech University of Korea), Seokho Hong(Hyundai Motor Group) |
| Key Words |
Airbag threshold, Whole-body injury metric, Lost years of life, Human body model |
| 초록 |
The current study aimed to develop a method for estimating whole-body injury metric values (WBIMs), which are widely used in epidemiological studies, to determine airbag deployment threshold during frontal crashes using a computational human surrogate model and real-world crash data. To this end, a finite element human body model was instrumented to predict the risk of the injuries. The whole body was divided into 22 body regions. Then, body region-specific injury pattern databases were constructed for these body regions using the NASS-CDS database. Monte Carlo Sampling was performed to calculate WBIMs, such as the probability of death and lost years of life. A series of frontal crash simulations was performed for various Delta-V with and without deploying pyrotechnic restraint systems. Lastly, the WBIM values obtained from the proposed method were compared to those obtained from the NASS-CDS. From the Delta-V of 25 km/h, the airbag-deployed conditions demonstrated a protective effect compared to the non-deployed conditions. The predicted WBIM values using the proposed method demonstrated a similar trend to that presented in the field data. The proposed method to estimate WBIM values can be used to evaluate various occupant protection systems.
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