Abstract
Pedestrian protection is one of the main research fields inside the automotive safety and one of the main pillars of innovation in the automotive industry. Data accident shows that each year died 6000 people in Europe as a consequence of a traffic accident.
The lower extremities are represented by the lower legform impactor. The lower legform that is being used nowadays is the one of the TRL. The magnitudes that it measures and the biomechanics limits are:
- Vertical acceleration, with 150 g as a limit value.
- Knee bending angle, measuring the angle between tibia and femur, with 15º as a limit value.
- Shear displacement, measuring the gap between tibia and femur, with +/- 6 mm as a limit value.
The main target of the simplified model is to analyse the relation between the geometric variables of the bumper and the front of the car with the results of the lower legform impactor. Then, with this simplified model some previous results can be obtained without modelling all the parts of the front of the vehicle.
Keywords: Pedestrian protection, simulation tools, simplified model