Citation

Carlson M, Suntay B, Stammen J. 27th International Technical Conference on the Enhanced Safety of Vehicles (ESV); April 3-6, 2023; Abstract #: 23-0275, pp. 15p. Washington, DC USA: US National Highway Traffic Safety Administration, 2023 open access.

Copyright

(Copyright © 2023 open access, US National Highway Traffic Safety Administration)

Abstract

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-000275.pdf

OBJECTIVE: The objective of this study is to evaluate the feasibility and accuracy of a multi-point chest deflection sensing system installed in the LODC using static, quasi-static, and two dynamic test conditions. METHOD: The multi-point LED chest deflection system was evaluated at four levels: (1) calibration verification, (2) quasi-static, (3) dynamic probe impact, and (4) dynamic drop tower in order to demonstrate that the sensor gave a reasonable and accurate measurement of chest deflection. RESULTS: Individual sensors were found to be quite accurate in static verification tests, and sensors installed in the LODC ribcage were also observed to match well with CMM measurements. In dynamic testing with the full array of sensors installed in the ribcage, LED deflection matched probe-measured deflection closely. In both frontal and oblique drop tower tests, individual sensor deflection time histories showed how the full array could capture full ribcage deformation. CONCLUSIONS: A novel non-contact sensor array to measure LODC chest deformation has been developed. This system has gone through a battery of both static and dynamic tests thus far to evaluate the system's performance. Initial results indicate that the system is promising for monitoring overall chest deformation in the LODC. Future work will include more dynamic testing to further understand how the system can describe three-dimensional ribcage deformation.

Language: en