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Improvement of Crash Compatibility Between Passenger Cars By Numerical Optimization of Front-End Stiffness
Technical Paper
2002-08-0256
Sector:
Event:
2002 JSAE Annual Congress
Language:
English
Abstract
This paper presents results of a study towards the improvement of the compatibility between passenger cars using the frontal stiffness as design factor. A fleet of four vehicles, each from a different class, was modeled using multi-body techniques. The stiffness of components in the front ends was optimized numerically to minimize injuries in frontal car-to-car collisions. Because of the complexity first the most relevant structural components and injury criteria were selected on the basis of parametric studies of car-to-barrier crashes. Next optimizations of car-to-car crashes were performed extending gradually from a minimum fleet of two vehicles to the full fleet of four vehicles. The study shows that injuries in incompatible scenarios can be reduced significantly be adjustment of the front-end stiffness of the different vehicles.