Simulation on Injury to Rear Seat Passenger under Car Front Crash Condition
To study the injury index to rear seat passenger in frontal crash,this article uses the MADYMO software to establish the rear seat passenger constraint system model which including car bodies,safety belts and a 5%dummy for impact simulation.The simulation values are close to test ones after contrasted with the vehicle impact test.The influence of design parameters including the stiffness of seat belt and belt retractor locking performance on passenger HIC,T3MS,THPC,femur force are researched by this model.Three points seat belt can decrease injury index.HIC value can be dropped from the initial 989 to 804 when the stiffness of seat belt increase 7%~10%.Decreased in size by 15 mm belt retractor locking performance can effectively improve the passenger safety.