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Citation
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Zhao J, Sabannavar DV, Shkoukani M. 27th International Technical Conference on the Enhanced Safety of Vehicles (ESV); April 3-6, 2023; Abstract #: 23-0283, pp. 30p. Washington, DC USA: US National Highway Traffic Safety Administration, 2023 open access. |
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Abstract
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27th International Technical Conference on the Enhanced Safety of Vehicles (ESV): Enhanced and Equitable Vehicle Safety for All: Toward the Next 50 Years
https://www-esv.nhtsa.dot.gov/Proceedings/27/27ESV-000283.pdf
This study is conducted to assess biofidelity of three occupant models (GHBMC human 50th%ile male occupant model M50-O v6.0, Humanetics male THOR dummy model v1.8.1 and WorldSid-50M model v7.6) in far-side crash test conditions and to better understand the kinematics and response of a far-side mid-sized driver in a compact size vehicle crashed to a 285° oblique right-side rigid pole at 31.01 km/h (NHTSA FMVSS 214 Test # 210915). Far-side occupant simulations for various sled and vehicle crash tests have been conducted. Firstly, the GHBMC human body model (HBM) is correlated with the three post-mortem human subjects (PMHS) far-side sled tests performed by University of Virginia (UVA) [1] at two crash severities and two impact directions. Secondly, a series of the far-side sled test simulations with paired HBM and anthropomorphic test device (ATD) cases are conducted, varying with severities and impact directions, seats, and central console presence. Lastly, occupant simulations are performed for a belted far-side mid-size male driver, represented by the HBM and the WorldSid-50M model respectively, in the subject compact passenger car in the FMVSS 214 pole test. Comparative analysis is made for the kinematics and responses of the HBM and the WorldSid-50M model at the vehicle crash. The HBM correlation results show that the GHBMC M50-O v6.0 human model reasonably correlates well with the PMHS kinematics and response from the 60-degree oblique far-side UVA sled tests. The HBM estimated high injury risk for the thorax is in line with the post-test PMHS injury outcomes. The comparative HBM-ATD studies at both the far-side sled tests and the vehicle pole crash test indicate that both ATD models have positive and negative biofidelity outcomes compared to the HBM. The THOR dummy has similar head/neck/torso kinematic and response measures compared to the HBM under the oblique sled test conditions, while its pelvis and lower leg respond poorly to the lateral inertia loads. The WorldSid-M50 dummy model has the whole-body kinematics similar to the HBM under the oblique sled test conditions, while it shows stiffer lateral bending of the torso and smaller chest deflections than the HBM especially under the lateral far-side loadings. The subject vehicle side crash test occupant simulation with the HBM predicts that the mid-size male driver may suffer severe injuries on the chest and moderate injuries on the head and abdomen.
Language: en |