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Biofidelity of Anthropomorphic Test Devices for Rear Impact
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Abstract
This study examines the biofidelity, repeatability, and reproducibility of various anthropomorphic devices in rear impacts. The Hybrid III, the Hybrid III with the RID neck, and the TAD-50 were tested in a rigid bench condition in rear impacts with ΔVs of 16 and 24 kph. The results of the tests were then compared to the data of Mertz and Patrick[1]. At a AV of 16 kph, all three anthropomorphic devices showed general agreement with Mertz and Patrick's data [1]. At a AV of 24 kph, the RID neck tended to exhibit larger discrepancies than the other two anthropomorphic devices. Also, two different RID necks produced significantly different moments at the occipital condyles under similar test conditions.
The Hybrid III and the Hybrid III with the RID neck were also tested on standard production seats in rear impacts for a AV of 8 kph. Both the kinematics and the occupant responses of the Hybrid III and the Hybrid III with the RID neck differed from each other. Comparison testing of the Hybrid III and TRID necks were conducted on production seats with different NIF scores [2] at ΔVs of 8 and 16 kph. The two necks responded similarly and no significant differences were observed. The corrected lower neck moment of both necks were predictive of the seats' NIF scores.
The Hybrid III and the Hybrid III with the pedestrian pelvis were also tested with standard production seats to determine if hip joint stiffness affected the kinematics of the ATD in rear impacts. The standard Hybrid III is a molded pelvis while the pedestrian pelvis is a cut pelvis. The kinematics and occupant responses of the two Hybrid III configurations were similar to each other. From this study, it can be concluded that the standard Hybrid III dummy is suitable for rear impact testing.
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Citation
Prasad, P., Kim, A., and Weerappuli, D., "Biofidelity of Anthropomorphic Test Devices for Rear Impact," SAE Technical Paper 973342, 1997, https://doi.org/10.4271/973342.Also In
References
- Mertz, Jr. Patrick L.M. “Investigation of Kinematics and Kinetics of Whiplash,” l1 th Stapp Car Crash Conference Society of Automotive Engineers, Inc. Warrendale, Pennsylvania, USA SAE Trans. 76 1967 670919
- Eichberger, A. Geigl, B.C. Moser, A. Fachbach, B. Steffan, H. Hell, W. Langwieder, K “Comparison of Different Car Seats Regarding Head-neck Kinematics of Volunteers During Rear End Impact,” Proceedings of 1996 International IRCOBI Conf. On the Biomechanics of Impacts Dublin, Ireland 1996
- “Traffic Safety Facts 1994: A Compilation of Motor Vehicle Crash Data from the Fatal Accident Reporting System and the General Estimates System,” NHTSA, National Center for Statistics and Analysis U.S. Dept. of Transportation Washington, D.C. August 1995
- Digges, K.H. Morris, J.H. Malliaris, A.C. “Safety Performance of Motor Vehicle Seats,” International Congress and Exposition Society of Automotive Engineers, Inc. Warrendale, Pennsylvania, USA SAE Trans. 94 1985
- Prasad, P. Mital, N. King, A..I. Patrick, L.M. “Dynamic Response of the Spine During +G x Acceleration,” Proceedings of the 19 th STAPP Car Crash Conference Society of Automotive Engineers, Inc. San Diego, CA November 1975 751172
- Svensson, M.Y. Lovsund, P. “A Dummy for Rear-End Collisions - Development and Validation of a New Dummy-Neck,” Proceedings of 1992 International IRCOBI Conf. On the Biomechanics of Impacts Verona, Italy 1992
- Schneider, L.W. Ricci, L.L. Salloum, M.J. Beebe, M.S. King, A.I. Rouhana, S.W. Neathery, R.F. “Design and Development of an Advanced ATD Thorax System for Frontal Crash Environments, Vol. 1: Primary Concept Development,” U.S. Dept. Of Transportation, NHTSA June 1992
- TNO Road-Vehicles Research Institute “MADYMO Databases Manual Version 5.1,” TNO Road-Vehicles Research Institute Delft, Netherlands 1994
- Thunnissen, J.G.M van Ratingen, M.R. Beusenberg, M.C. Janssen, E.G. “A Dummy Neck For Low Severity Rear Impacts,” Proceedings of 15 th International Technical Conference on the Enhanced Safety of Vehicles 2 Melbourne, Australia 1996
- Mertz, H.J. “Anthropomorphic Test Devices,” “Accidental Injury, Biomechanics and Prevention,” Nahum, A.M. Melvin, J.W. Springer-Verlag New York 1993
- Mertz, H.J. Patrick, L.M. “Strength and Response of the Human Neck,” 15th Stapp Car Crash Conference Society of Automotive Engineers, Inc. Warrendale, Pennsylvania, USA SAE Trans. 80 1971 710855
- Seemann, M.R. Muzzy, W.H. Lustick, L.S. “Comparison of Human and Hybrid III Head and Neck Response,” 30th Stapp Car Crash Conference Society of Automotive Engineers, Inc. Warrendale, Pennsylvania, USA 0-89883-451-1 861892
- Deng, Y.C. “Anthropomorphic Dummy Neck Modelling and Injury Considerations,” Accident Analysis & Prevention 21 1 85 100 1989
- Prasad, P. Kim, A. Weerappuli, D.P.V. Roberts, V. Schneider, D. “Relationships Between Passenger Car Seat Back Strength and Occupant Injury Severity in Rear End Collisions: Field and Laboratory Studies,” Proceedings of the 41″ STAPP Car Crash Conference Society of Automotive Engineers, Inc. Orlando, Fl. November 1997