Abstract
To investigate the reliability and necessity of utilising a human biomechanical model in automotive safety, the frontal collision simulation test was conducted employing the TUST IBMs 3YO model and the Q3 dummy model. The kinematic and biomechanical injury parameters of the occupants were comparatively analysed. The results indicate consistent trends in acceleration changes between the two computational models. Variations in neck structure resulted in a 25% to 28% difference in the peak values of neck injury parameters. Differences in spine structure and materials made the spine angle change trends of the Q3 model more sensitive to the type of child restraint system (CRS). The human biomechanical model allows for the evaluation of occupant injury risk from multiple perspectives. Therefore, employing an advanced computational model of the human body with higher biofidelity provides a more reliable and effective method for investigating injury mechanisms and developing protective countermeasures for child occupants.
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