SAFETY OF DRIVER AND PASSANGER IN FRONTAL CAR CRASH USING A NEW TYPE OF IMPACT ATTENUATOR

Claudiu NEDELESCU, Calin ITU, Anghel CHIRU, Maria Luminita SCUTARU

Abstract


The impact attenuator (IA), along with the seat belt and airbag, is an important device in ensuring the passive safety of motor vehicles. This refers to both current cars and racing or special purpose cars. The study investigates the benefits that a simple, cheap and easy-to-apply safety system can bring, as it proposes the use of water in a simple system that contributes to the absorption of a shock in a collision with a vertical wall. In this regard, the behavior of a mannequin in a frontal collision is monitored. Knowing the loads acting on the dummy, a theoretical check (based on a FEM model) and then an experimental one is made to see if the stresses occurring after the collision fall within the range suggested by current standards. The vehicle is seen as a structure that has an IA and a dummy using a seat belt. An innovative water-based IA solution is used. According to the criteria, the behavior of the mannequin was examined for a frontal crash of the car-driver/passenger system. The results obtained suggest the possibility of using water in a suitable assembly as a shock-attenuation system in the event of an accident.


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