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

Paper #:
  • 2017-01-1431

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-1431
Citation:
Dong, K., Putala, B., and Ansel, K., "A Study of Hybrid III 5th Percentile Female ATD Chest Accelerometers to Assess Sternum Compression Rate in Chest on Module Driver Out-of-Position Evaluations," SAE Technical Paper 2017-01-1431, 2017, doi:10.4271/2017-01-1431.
Pages:
9
Abstract:
Driver out-of-position (OOP) tests were developed to evaluate the risk of inflation induced injury when the occupant is close to the airbag module during deployment. The Hybrid III 5th percentile female Anthropomorphic Test Device (ATD) measures both sternum displacement and chest acceleration through a potentiometer and accelerometers, which can be used to calculate sternum compression rate. This paper documents a study evaluating the chest accelerometers to assess punch-out 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 III - 5th percentile female ATD correlated to testing. The correlated restraint model was utilized with a Hybrid III - 50th percentile male ATD. A 50th percentile male Global Human Body Model (HBM) was then applied for enhanced anatomical review. The results illustrate differences in chest response between the Hybrid III dummy and the human body model in chest on module driver OOP evaluations.
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