Abstract
KEYWORDS:
Energy, Rigidity Coefficient, Vehicle Collision
ABSTRACT
There have been enhanced new research paths to cope with passive safety and collision analysis between road traffic partners and motor vehicle. Biomechanics attempts to find solutions in order to decrease the injury gravity suffered by people in case of accidents. The insurance companies undertakes, beside taking over risk and damages evaluation, the risk and evaluation limitation as a main branch of their activity. The interior passive safety, that the present paper copes with, is influenced by the motor vehicle mass, motor vehicle exterior deformation, drivers and passengers’ cab rigidity, passenger restraint systems, motor vehicle shape. The hereby paper advances an energetic method used to determine the rigidity coefficient of the touring cars’ frontal structure undertaking a frontal collision or offset against a rigid wall. The elements submitted to deformation as a result to the impact are series-connected, therefore the rigidity coefficient of the frontal structure is not constant, varying according to polynomial laws of various degrees. In order to determine the rigidity coefficient there is set out the digitization of experimental impact diagrams (acceleration-speed-deformation). This method is designed so as to help technical experts reconstruct events of such serious extent.