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Biomechanical Simulation and Animation of Vehicle Occupant Kinematics for Restrained and Unrestrained Conditions in Rollover Accidents
Technical Paper
1999-01-1885
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Current transportation safety interests involving the use of restraints in school buses, coupled with litigation claims arising from injuries to unrestrained occupants of school buses involved in rollovers, resulted in a study aimed at: understanding the biomechanical response and injury causing factors associated with unrestrained students involved in an actual school bus roll-over accident; and, comparing the unrestrained response condition to the hypothetical response if the students were lap belt restrained in the same rollover. A numerical occupant simulation computer code was used to input vehicle rollover motion to both belted and unbelted occupants. The unrestrained case theoretically duplicated the injury producing conditions that led to serious head and neck injury in certain students. The hypothetical case of lap belt restrained students demonstrated that the serious injury producing conditions could have been eliminated had lap belts been available and used during the actual roll-over accident. To more clearly demonstrate graphically the occupant kinematics for both conditions, the numerical computer analysis data is displayed as a series of orthographic images of interlinked ellipsoids. This data is then scanned into a 3-D graphics code with more realistic human models to allow real-time and slow motion viewing of the occupant response from both on board and off board view stations. The low cost and limited time needed to perform the analysis are less than experimental costs and suggest the analysis method can provide valuable insight into the benefits of utilizing restraints to prevent ejection and injury in vehicle rollover.
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Saczalski, K., Saul, J., Harrison, T., and Lowrance, C., "Biomechanical Simulation and Animation of Vehicle Occupant Kinematics for Restrained and Unrestrained Conditions in Rollover Accidents," SAE Technical Paper 1999-01-1885, 1999, https://doi.org/10.4271/1999-01-1885.Also In
References
- Severy, D.M. Brink, H.M. Baird, J.D. School Bus Passenger Protection Automotive Engineering Congress and Exposition;Society of Automotive Engineers, Inc. Warrendale, PA. USA 1967 SAE 670040
- Siegal, A.W. Nahum, A.M. Runge, D.E. Bus Collision Causation and Injury Patterns 15th Stapp Car Crash Conference; Society of Automotive Engineers, Inc. Warrendale, PA. USA 1971 SAE 710860
- School Buses and Seat Belts Insurance Institute for Highway Safety Arlington, VA. USA Status Report 20:5 May 1985
- National Coalition for Seat Belts in School Buses Third Edition Report, Skokie, Illinois USA September 1986
- Increasing School Bus Safety For New York State’ s Children Through Seat Belts on School Buses and Elimination Standees! A Report to the Legislature by the New York State Legislative Commission on Critical Transportation Choices Chairman, Senator Norman J. Levy, Albany New York, USA April 1986
- Crashworthiness of Large Post - Standard School Buses National Transportation Research Board, Bureau of Safety Programs Washington, D.C. USA March 18 1987
- Improving School Bus Safety Transportation Research Board, Special Report No. 222 National Research Council Additional Sources Washington, D.C. USA 1989
- Farr, G.N. Eng, P. School Bus Safety Study-Volume 1 Traffic Safety Standards and Research Transport Canada January 1985
- School Bus Safety Belt Study Final Report Submitted to the New Jersey Department of Law and Public Safety New Jersey Institute of Technology Newark, JG USA December 1989
- Transportation Safety: Seat/Lap Belts and Other Issues Flagstaff Unifies School District Report Flagstaff, AZ USA November 5 1996
- Sadeghi, M.M. Tidbury, G.H. Bus Roll Over Accident Simulation 3rd International Conference on Vehicle Structural Mechanics, Society of Automotive Engineers, Inc. Warrendale, PA USA 1979 SAE 790994 .
- Bartz, J.A. A Three Dimensional Computer Simulation of a Motor Vehicle Crash Victim; Phase 1 -Development of the Computer Program, U.S. Department of Transportation, Report No. DOT-HS-800-574 Washington D.C., USA 1971
- Obergefell, L.A. Gardner, T.R. Kaleps, I. Fleck, J.T. Articulated Total Body Model Enhancements; . Vol 2:User’ s Guide, Wright-Patterson Air Force Base Ohio, USA 1988 Rpt No. AAMRL-TR-88-043
- Nurse, R. Sharma, D. Mahumad, W. Shams, T. Moran, K. Rangarajan, N. Dynaman User’ s Manual, GESAC, Inc. Silver Spring, MD USA 1990
- Cheng, H. Rizer, A.L. Obergefell, L.A. Articulated Total Body Model Version V; User’ s Manual Wright-Patterson Air Force Base Ohio, USA 1998 Rpt. No. AFRL-HE-WP-TR-1998-0015
- Saczalski, K.J. Saczalski, T.K. Analysis Methods for Prediction of Occupant Impact Response and Interactions with Seats, Restraints, and Vehicle Interior Structure 2nd International KRASH Users Seminar Cranfield Impact Center Cranfield England June 26-28 1995
- Yohe, L.L. Van Etten, G. Lack, S. Public Docket Report: WEH-96-F-H014, Flagstaff, Arizona, USA, August 14, 1996, 1986 Navistar International School Bus National Transportation Safety Board Washington D.C., USA 1998
- AIRCRAFT CRASH SURVIVAL DESIGN GUIDE: Volume II-Aircraft Crash Environment and Human Tolerance Final Report USARTL-TR-79-22B to U.S. Army Research and Technology Laboratories January 1980