Occupant response sensitivity analysis using a lumped mass model in simulation of car-to-car side impacts.

Results of a sensitivity study, based on lumped spring /mass modeling approaches for the characterization of structural and occupant responses in 60 deg and 90 deg side impacts, are presented. Increases in struck car side stiffness and the addition of door padding reduced the peak rib, pelvis, and spine accelerations. The results indicate padding is very effective in reducing the thoracic probability of injury.