To accomplish the crashworthiness for a vehicle structure, designer must consider three requirements. First one is sufficient living space. Second requirement is restraint system of the occupant to prevent injurious contact with the vehicle's interior...
To accomplish the crashworthiness for a vehicle structure, designer must consider three requirements. First one is sufficient living space. Second requirement is restraint system of the occupant to prevent injurious contact with the vehicle's interior or ejection from it. Third requirement is allowable impact force which is experienced by the occupant should be reduced to a tolerable level. Reducing of the crash energy for occupant, design is required a total system's approach with landing gear, floor structure, and seat. In this paper, a method of modeling a seat belt on a crew seat during a dynamic seat testing. The body segments of occupant were modeled as joint with stiffness, damping, and friction. Four type seat belt restraints system were treated. The safety performance of a occupant seat belt indicated that. the effectiveness of a safety device for crashworthiness and safety could be substantially improved.