Abstract:

Madymo software was adopted to build a numerical simulation model of a constraint system for rear seat female occupant to investigate the protection effect on rear seat occupant by an airbag-belt. The simulation results were compared with the experiment results to verify the credibility of the simulation model. Based on
the numerical simulation model, an airbag-belt simulation model was established to analysis the protective effect on the rear female dummy. The protective effect of the airbag-belt was investigated in the two aspects of force limitation level and pretensioner. The results show that the airbag-belt well restrains the rear seat female dummy, and significantly reduces its damage. The airbag-belt also reduces the contact risk between the female dummy’s head and the front seat, and the thorax compression is reduced from 34.8 mm to 29.9 mm. However, the pretensioner, which was added to the airbag-belt, increases the chest compression and is not good for occupant protection.

Key words: vehicle safety , airbag-belt , rear seat female dummy ,  dummy injury