A Coupling Optimization Method of Vehicle Structure and Restraint System for Occupant Injury Protection in Traffic Accidents

Vehicle front-end structure has the characteristic of symmetry. The damage occupants in crash process is determined by combined effect and restraint system vehicle. In this paper, coupling relationship an optimized method for vehicle are studied based on dynamics, to reduce occupant injury. A fast solution algorithm motion response was established using a analytical model. Then, database algorithm, analyze between pulse specific stiffness, with respect curve shape parameters. results showed that combination concave upward stiffness best coupling. Subsequently, coupled optimization proposed model genetic (GA). data from NHTSA databases were optimized, as example, verify effectiveness method. optimal acceleration reduced 44%. addition, feasibility result discussed, provide reference injury protection traffic accidents.