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Hybrid III Dummy Neck Issues
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 11, 2005 by SAE International in United States
Annotation ability available
While the Hybrid III anthropomorphic test device (ATD) family has experienced a lengthy period of development, and is an essential part of vehicle safety regulation, several issues associated with the ATD's head/neck design and the neck dynamic response due to airbag loading have been identified. As a result, the response of the Hybrid III neck under a number of airbag loading conditions could be an “artifact” of the ATD and not representative of the live human. One area of concern relates to the method of incorporating the human neck muscles into the neck response and how this affects the out-of-position (OOP) tests mandated in the new FMVSS 208.
The results of a series of sled and OOP tests are presented in this paper to elaborate on the nature and the magnitude of the ATD's neck response “artifact”. In addition, the complication associated with balancing in-position and OOP requirements as a result of this “artifact” is highlighted. The test results show that even with a very low slope inflator, that takes about 100 ms to inflate the airbag (a low power air bag system), there is still potential for the bag to be caught in the Hybrid III ATD's chin-jaw-neck region resulting in unrealistically high neck tension and moment. This high tension and moment can occur late in the event after the bag is inflated - as late as 90 ms after initiation of deployment.
|Technical Paper||OOP Response of THOR and Hybrid-III 50th% ATDs|
|Technical Paper||Response of Belt Restrained Subjects in Simulated Lateral Impact|
|Technical Paper||Differences in the Dynamic Responses of the Thor-NT and Thor-FT Dummies|
CitationKang, J., Nusholtz, G., and Agaram, V., "Hybrid III Dummy Neck Issues," SAE Technical Paper 2005-01-1704, 2005, https://doi.org/10.4271/2005-01-1704.
Air Bags, Occupant Protection, and Child Passenger Restraints
Number: SP-1933 ; Published: 2005-04-11
Number: SP-1933 ; Published: 2005-04-11
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