Simulation of Automobile Occupant Restraint System and Optimization of Its Parameters
A passenger restraint system model was built based on the finite element model of the car,and a 100%frontal rigid wall collision simulation analysis was conducted.Incorporating the dummy in-jury values from the collision analysis,sensitivity analysis was employed to identify parameters that have a significant impact on the constraint system as design variables.Subsequently,a Kriging surro-gate model for weighted injury indicators was constructed,followed by parameter optimization using a multi-island genetic algorithm.The results show that the weighted injury index decreases by 38.92%,achieving the design goal.