MATHEMATICAL MODELS AND PASSIVE SAFETY

MODELES MATHEMATIQUES ET SECURITE PASSIVE

In highway engineering, collisions appear in the form of accident statistics. These collisions can be those between two vehicles or between a vehicle and a pedestrian or between a vehicle and a two-wheeled vehicle. In both cases, the study of injuries sustained necessitates the selection of physical dimensions for interpreting the different degrees of severity of injuries. The criteria for the evaluation of the severity of impacts on the human body having been selected, the biomechanical study of accidents and the definition of protective measures may be approached in several ways. As regards passive safety, simple mathematical models were introduced with the aim of identifying the most significant parameters, of evaluating their relative influence and of defining their principal orientations. For the protection of pedestrians, a very simplified modelling system for a pedestrian using two segments gives the effect of impact against the lower limbs on the angular velocity of the two segments. However, the use of units of movement does not enable one to determine the forces applied or the deformations. For this reason, more complex models have been elaborated both in plan and in three dimensions. In an appendix, an example of the use of a mathematical model is given. /TRRL/

  • Supplemental Notes:
    • Proceedings du Collogue su les Methodes d'Etudes et Simulation des Chocs, 16, 17 et 18 Octobre, 1974, Lyon, France.
  • Corporate Authors:

    Librairie Lavoisier

    Rue Lavoisier 11
    75008 Paris,   France 
  • Authors:
    • Stcherbatcheff, G
    • Fayon, A
    • Tarriere, C
    • Rullier, J C
  • Publication Date: 1974

Language

  • French

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184102
  • Record Type: Publication
  • Source Agency: Institute of Transport Research
  • Report/Paper Numbers: Proceeding
  • Files: ITRD, TRIS
  • Created Date: Dec 29 1978 12:00AM