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An Algorithm to Calculate Chest Deflection from 3D IR-TRACC
Technical Paper
2016-01-1522
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A three dimensional IR-TRACC (Infrared Telescope Rod for Assessment of Chest Compression) was designed for the Test Device for Human Occupant Restraint (THOR) in recent years to measure chest deflections. Due to the design intricateness, the deflection calculation from the measurements is sophisticated. An algorithm was developed in this paper to calculate the three dimensional deflections of the chest. The algorithm calculates the compression and also converts the results to the local spine coordinate system so that it can correlate with the Post Mortem Human Subject (PMHS) measurements for injury calculation. The method was also verified by a finite element calculation for accuracy, comparing the calculation from the corresponding model output and the direct point to point measurements. In addition, the IR-TRACC calibration methods are discussed in this paper.
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Citation
Wang, Z. and Watson, B., "An Algorithm to Calculate Chest Deflection from 3D IR-TRACC," SAE Technical Paper 2016-01-1522, 2016, https://doi.org/10.4271/2016-01-1522.Also In
References
- Parent , D. , Craig , M. , Ridella , S. , McFadden , J. Thoracic Biofidelity Assessment of the THOR Mod Kit ATD 23rd Enhanced Safety of Vehicle Conference, Paper No. 13-0327 2013
- Ridella , S. Parent , D. Modifications to Improve the Durability, Usability and Biofidelity of the THOR-NT Dummy 22nd Enhanced Safety of Vehicles Conference 2011
- Rouhana , S.W. , Elhagediab , A.M. , Chapp , J.J. A High-speed Sensor for Measuring Chest Deflection in Crash Test Dummies The 16th International Technical Conference on the Enhanced Safety of Vehicles (ESV) Proceedings - Windsor Ontario, Canada May 31- June 4, 1998