A Study of Hybrid III 5th Percentile Female ATD Chest Accelerometers to Report Sternum Compression Rate in Chest on Module Driver Out-of-Position Evaluations

Paper #:
  • 2017-01-1431

Published:
  • 2017-03-28
Abstract:
Out-of-position (OOP) driver tests were designed to address concerns about airbag introduced injury in situations while the occupant is nearer to the airbag module than in a normal seated position. The 5th percentile female has instrumentation for measuring ATD sternum displacement (potentiometer) and acceleration (accelerometers) which can be used to compute compression rate. This paper documents a study investigating the capability of the chest accelerometers to accurately assess non-distributed loading of the chest during this test configuration. The study included ATD mechanical loading and instrumentation review. Finite element analysis was conducted using a Hybrid 3 - 5th percentile female ATD correlated to testing. The correlated restraint model was utilized with a Hybrid 3 – 50th percentile male ATD. A 50th percentile male Global Human Body Model was then applied for enhanced anatomical review. The results indicated a discrepancy of chest response between the Hybrid 3 dummy and the human body model in chest on module driver OOP evaluations.
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