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DEVELOPMENT OF A WHIPLASH INJURY REDUCING SEAT SYSTEM USING BIORID II DUMMY
Technical Paper
2001-06-0057
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English
Abstract
In recent years, several kinds of seat systems that aim to reduce cervical spinal injuries in rear impacts, so called ‘whiplash injuries’, have been released by some car manufacturers and seat suppliers in the world. Meanwhile, several kinds of dummies have been developed to be representatives of occupants under such conditions. One of these is the BioRID II equipped with a realistic spine constructed of multiple vertebrae similar to that of a human. It is regarded as the most biofidelic dummy for low speed rear impact. Using this dummy, some typical ‘whiplash protective’ seat systems currently available were dynamically tested to see their performance on injury reduction. From the results of these tests, the design direction to lessen the injury level more efficiently was determined. According to this direction, such parameters as the position of the head restraint and the force-deflection characteristic of the seat back were optimized by means of computer simulation with an in-house developed dummy model. These optimizations made on the existing seat system resulted in lower injury levels in the dynamic tests. In this study, injury levels were estimated mainly by means of Neck Injury Criterion (NIC) currently proposed as the only quantitative criterion based on the hypothesis of spinal ganglion injury. In addition, the upward acceleration at the top of the thoracic spine (T1) that might be one index for injury that was based on the hypothesis of ‘synovial fold impingement’ caused by the upward motion of the torso was taken into account.
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Authors
Citation
Sano, K., Dokko, Y., Negishi, H., Goto, T. et al., "DEVELOPMENT OF A WHIPLASH INJURY REDUCING SEAT SYSTEM USING BIORID II DUMMY," SAE Technical Paper 2001-06-0057, 2001.Also In
References
- 1999
- 1998
- 1994
- May 22 1999
- Sekizuka, M ‘Seat Designs for Whiplash Injury Lessening’ (98-S7-O-06)16 th ESV Conference Windsor 1998
- Lundell. B, et al ‘The Whips Seat – A Car Seat for Improved Protection Against Neck Injuries in Rear End Impacts’ (98-S7-O-08)16 th ESV Conference Windsor 1998
- Watanabe, Y, et al ‘Influence of Seat Characteristics on Occupant Motion in Low Speed Rear Impacts’ Traffic Safety and Auto Engineering Stream of the Whiplash-Associated Disorders World Congress Vancouver 1999
- Zuby. D, et al ‘Crash Test Evaluation of Whiplash Injury Risk’ The 43 rd STAPP Car Crash Conference San Diego 1999
- Thunnissen .J, et al ‘ A Dummy Neck for Low Severity Rear Impacts’ (96-S10-O-12)15 th ESV Conference 1996
- Davidsson, J, et al ‘BioRID P3 – Design and performance Compared to Hybrid III and Volunteers in Rear Impacts at ΔV=7km/h’ The 43 rd STAPP Car Crash Conference San Diego 1999
- Gotou. T, et al ‘A Comparison between Human Volunteer and 3 Types of Dummies Head/Neck/Torso Response in Rear-end Sled Impacts’ Proceedings of JSAE Spring Convention Sendai 1999
- Gotou. T, et al ‘A Comparison between BioRID and Hybrid III Head/Neck/Torso Response in Middle Speed HYGE Sled Impacts’ Proceedings of JSAE Spring Convention Yokohama 2000
- Örtengren .T, et al ‘Membrane Leakage in Spinal Ganglion Nerve Cells Induced by Experimental Whiplash Extension Motion: A Study in Pigs’ Journal of Neurotrauma 13 3 1996
- Boström .O, et al ‘A New Neck Injury Criterion Candidate – Based on Injury Findings in the Cervical Spinal Ganglia after Experimental Neck Extension Trauma’ IRCOBI Conference Dublin 1996
- Eichberger .A, et al ‘Evaluation of The Applicability of the Neck Injury Criterion(NIC) in Rear End Impacts on the Basis of Human Subject Tests’ IRCOBI Conference Göteborg 1999
- Wheeler .J, et al ‘Validation of the Neck Injury Criterion(NIC) Using Kinematic and Clinical Results from Human Subjects in Rear-end Collisions’ IRCOBI Conference Göteborg 1999
- Ono .K, et al ‘Cervical Injury Mechanism Based on the Analysis of Human Cervical Vertebral Motion and Head-Neck-Torso Kinematics During Low Speed Rear Impacts’ The 41 st STAPP Car Crash Conference Florida 1997
- Eichberger .A, et al ‘Comparison of Different Car Seats Regarding Head-Neck Kinematics of Volunteers During Rear End Impact’ IRCOBI Conference Dublin 1996
- Eriksson .L ‘Three-Dimensional Mathematical Models of the BioRID I and Car Seats, for Low-Speed Rear-End Impacts’ Chalmers university of Technology Sweden 2000
- Sano, K, et al ‘Development of the Simulation Model of Bio-RID II Dummy’ Proceedings of JSAE Spring Convention Yokohama 2001
- ‘PAM-CRASH/PAM-SAFE Solver Reference Manual’ 1998
- Schuller .E, et al ‘A Forensic Sample of Low Speed Car Accidents’ Traffic Safety and Auto Engineering Stream of the Whiplash-Associated Disorders World Congress Vancouver 1999
- Olsson .I, et al ‘An In-depth Study of Neck Injuries in Rear End Collisions’ IRCOBI Conference Bron 1990
- ‘Base SAS Software User’s Guide, Version 6, First Edition’ SAS Institute Inc 1993