Variability Study for 50th Percentile Females and Males

Details

• Creators:
  Hu, Jingwen ; Lin, Yang-Shen ; Boyle, Kyle J. ; Khandare, Sujata ; Bonifas, Anne ; Reed, Matthew P.
• Corporate Creators:
  University of Michigan Transportation Research Institute
• Corporate Contributors:
  United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Vehicle Safety Research
• Subject/TRT Terms:
  • Anthropometry
  • Virtual reality
  • Simulation
  • Predictive control
  • Crash victim simulation
  • Injuries
• Publication/ Report Number:
  DOT HS 813 836
• DOI:
  https://doi.org/10.21949/ed4c-5z72
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  United States. Department of Transportation. National Highway Traffic Safety Administration
• Abstract:
  The objective of this research is to use parametric human body models (HBMs) to understand how geometric variability among individuals who have the same sex, stature, and body weight may affect the impact responses and injury outcomes, focusing on the midsize male and midsize female populations. We first detailed the methods of quantifying the geometric variations in skeleton and external body surface in midsize male and midsize female occupants using principal component analysis, regression, and residual error analysis. Our findings revealed significant geometric variability in the ribcage and pelvis, whereas variations in the femur and tibia were minimal for both midsize males and females. Based on these geometric analyses, nine midsize male and nine midsize female geometry models were developed, focusing on ribcage and pelvis variations, which account for most of the observed geometric variability. The simplified Global Human Body Modeling Consortium midsize male model was then morphed to match the predicted geometries of the 18 HBMs. Subsequently, 162 impact simulations were conducted under nine impact conditions using the morphed HBMs. Overall, the component-level impact simulations demonstrated relatively small variations in HBM impact responses among models with the same sex, stature, and body weight. However, in the US-NCAP frontal crash simulations, notable variations in injury risk were observed, especially in the front passenger position. These results suggest that geometric variability, even among HBMs with the same sex, stature, and body weight, should not be overlooked when assessing injury risks in severe frontal crashes.
• Format:
  PDF
• Funding:
  693JJ921D000021/693JJ923F000251
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93229/dot_93229_DS1.pdf
• File Type:
  [PDF - 9.48 MB]
• Collection(s):
  NHTSA - Vehicle Safety Research
• Main Document Checksum:
  urn:sha-512:fd2232ed035249c5eaab79ef7defc56a1052d583a7fdf96b1fea0429aa15b54804246d1872241a75c2bf5da57d7217fece6c835d798071efd14edfac5b2219aa