Instrumentation for the study of submarining on the Hybrid II test dummy has already been described in a previous paper. The instrumentation consisted basically of two 20 force transducers installed in the dummy's pelvis. This system has been evaluated, improved and installed on the 50th percentile Hybrid III dummy. The aim of this paper is to describe the general concept arrived at through this study, namely:
This work, carried out in conjunction with FTSS, required changes on the levels of the spinal/lumbar column connection and measurement of thoracic deflection. The assembly was tested in various impact configurations (subsystem and sled configuration tests). The corresponding results show that the system detects submarining well and does not the overall response of the instrumented dummy by comparison with a standard dummy.
The new system detecting seat-belt slippage was also installed on the 5th percentile Hybrid III dummy. Sled tests gave reliable recordings of the detection of submarining.
From the results available, it seems that the two versions presented (50th and 5th percentile) enable improved study of submarining and accordingly the optimization of occupant restraining systems.
|1989||Bendjellal F, Gillet D, Foret-Bruno JY, Tarrière C. Measurement of seat-belt loads sustained by the dummy critical pelvic motion: development of a 2-d transducer. In: Proceedings of the 12th International Technical Conference on Experimental Safety Vehicles (ESV). May 29–June 1, 1989; Göteborg, Sweden.673-683.|
|1994||Bendjellal F, Brandsch H, Fuld G, Hautmann E, Koch M, Marks H-G, Van der Straaten Y, Westfal U. ACEA investigations regarding Hybrid III chest deflection. In: Proceedings of the 14th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 23-26, 1994; Munich, Germany.169-198.|
|1979||Leung YC, Tarrière C, Fayon A, Mairesse P, Delmas A, Banzet P. A comparison between part 572 dummy and human subject in the problem of submarining. In: Proceedings of the 23rd Stapp Car Crash Conference. October 17-19, 1979; San Diego, CA. Warrendale, PA: Society of Automotive Engineers:677-719. SAE 791026.|
|2002||Rouhana SW. Biomechanics of abdominal trauma. In: Nahum AM, Melvin JW, eds. Accidental Injury: Biomechanics and Prevention. 2nd ed. New York, NY: Springer-Verlag; 2002:405-453.|
|1994||Tarrière C. Car safety and ratings: comparative study of facts and practices-proposals. In: Proceedings of the 1994 International IRCOBI Conference on the Biomechanics of Impact. September 21-23, 1994; Lyon, France.165-179.|
|1994||Thomas C, Foret-Bruno JY, Brutel G, Le Coz JY, Got C, Patel A. Front passenger protection: what specific requirements in frontal impact? In: Proceedings of the 1994 International IRCOBI Conference on the Biomechanics of Impact. September 21-23, 1994; Lyon, France.205-216.|
|2001||Rouhana SW, Elhagediab AM, Walbridge A, Hardy WN, Schneider LW. Development of a reusable, rate-sensitive abdomen for the Hybrid III family of dummies. Stapp Car Crash J. 2001;45:33-60. SAE 2001-22-0002.|
|2006||Uriot J, Baudrit P, Potier P, Trosseille X, Petit P, Guillemot H, Guérin L, Vallancien G. Investigations on the belt-to-pelvis interaction in case of submarining. Stapp Car Crash J. 2006;50:53-73. SAE 2006-22-0003.|
|2010||Klinich KD, Flannagan CAC, Nicholson K, Schneider LW, Rupp JD. Factors associated with abdominal injury in frontal, farside, and nearside crashes. Stapp Car Crash J. 2010;54:73-91. SAE 2010-22-0005.|