A Study of the Effect of Frontal Crash Seat Belts on Driver Injury in a Certain Type of Wheeled Tactical Vehicle

A finite element model of frontal collision of a certain type of wheeled tactical vehicle is established, and the collision test method is designed concerning the test requirements of Chinese frontal collision standard GB11551 and Chinese side collision standard GB2007 to get the acceleration inside the vehicle as well as the damage of the occupants, and the model accuracy is verified according to the results of the actual collision test and the simulation test, as well as the change of the energy in the process of the simulation. The Hybrid III 50% male dummy is placed in the driver’s seat, and under the action of different conditions and ways of restraint systems, the damage of each part of the dummy is obtained in the simulation test. The study shows that multi-point seat belts provide better occupant protection compared to traditional three-point seat belts in response to high-impact crash environments. It can improve the direction of the force on the occupant and effectively reduce the occupant injury. The final occupant WIC decreased by 25.9% relative to the initial four-point seat belt position, improving the survival rate of the occupants.