Occupant Torso Kinematics in Low Acceleration Time-Extended Evasive Swerving Events

Authors: Christine Holt, Sriram Balasubramanian—School of Biomedical Engineering, Science, and Health Systems, Drexel University and Center for Injury Research and Prevention, Children’s Hospital of Philadelphia; Thomas Seacrist, Valentina Graci, and Kristy B. Arbogast—Center for Injury Research and Prevention, Children’s Hospital of Philadelphia; Jason Kerrigan and Richard Kent—Center for Applied Biomechanics, University of Virginia

Abstract

Low-acceleration time-extended (LATE) emergency maneuver events often precede a crash. The inertial forces during such events have the potential to cause changes to the occupant’s “state”, which may result in profound consequences in restraint performance. The objective of this study was to develop a method to examine this in a controlled laboratory environment and specifically quantify the kinematic torso response of adult human subjects during simulated evasive swerving maneuvers. To this end, a customized laboratory test fixture was constructed to mimic lateral oscillatory swerving for a restrained occupant. Subjects were exposed to a series of 4 complete oscillatory cycles with peak lateral accelerations of approximately 0.75 g. Results from 8 healthy adult male subjects are presented.

Type: Short Communication

© Stapp Association, 2017

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