50 percentile dummy movement analysis using TEMA Automotive software

Abstract

The dynamic loads acting on passengers during road accidents depend not only on the vehicle structure, but also on the properties of the applied passenger and driver protection system. Two-point seat belts are the most frequently used personal protection system for adult passengers in bus vehicles. The paper investigates the thread of dynamic loads acting on the body of a 50 percentile dummy placed in an armchair equipped with two-point seat belts. In order to solve this problem, tests recorded with the Phantom v310 camera were used, the object of which was the Hybrid II 50th dummy, and the recording of the tests was carried out for three different collision speeds. The article presents the results of the crash tests obtained with the use of the TEMA Automotive program. Crash test analysis showing the displacement of the head and upper torso of the dummy located in the limited space between the bus-type seats indicates that standard seat belts do not provide sufficient protection. The article indicates the basis for further research and improvement of the personal protection system of passengers transported in minibuses and buses.

Comparison of Volunteers’ Head Displacement with Computer Simulation—Crash Test with Low Speed of 20 km/h

“…They show how great the risks of her injuries are as a result of the operation of the seat belts. In addition, the dummy's abdomen and pelvis are equipped with force sensors to accurately diagnose the forces at which abdominal or pelvic injuries occur [37][38][39][40][41]. Sensors installed in the legs measure the deflection, pressure, and stresses that cause injuries to the tibia and fibula.…”