Browse Publications Technical Papers 900375
1990-02-01

Application of Kinematic Concepts to Side Impact Injury Analysis 900375

An understanding of fundamental kinematic relationships among the several deforming surfaces of side-impacting bullet and target vehicle, occupant protection system and occupant is fundamental to rational design of crash injury counter-measures. Unfortunately, such understanding is not easy to achieve. Side impacts address the full range of bodily contacts and injuries in a way that challenges analysis. Each bodily area and organ requires individual consideration for adequate injury protection.
This paper presents a simplified graphical analysis of occupant kinematics and injury exposure applied specifically to the NHTSA-proposed crabbed moving deformable barrier (MDB) compartment impact, as described in NHTSA's Notice of Proposed Rulemaking (NPRM) for Federal Motor Vehicle Safety Standard (FMVSS) 214, issued in January of 1988 [NHTSA 1988 (1)*]. Projections are offered regarding the potential of thoracic injury counter-measures.
The proposed NHTSA test configuration is found to be an impediment to understanding side impact interactions. The recommended alteration is to replace the crabbed moving deformable barrier test procedure with a test using an uncrabbed perpendicular moving rigid barrier at 30 mph. The advantages of such a change are discussed.

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