This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Dynamic Tests of Racing Seats and Simulation with Vedyac Code
Annotation ability available
Sector:
Language:
English
Abstract
Dynamic tests have been performed on carbon fiber racing seats following the FIA regulations. The tests have shown, in rear impact tests, a relatively strong rebound leading to large forward bending of neck, and, in side impact tests, very large lateral displacement of the head, the latter protruding dangerously towards hard portions of the car structure. Stiffening the seat back by steel struts results in reducing strongly both the motion and the acceleration of the head. Simulations of the dynamics of the tests have been done with multi-body models, including the Hybrid III dummy and seat deflection, by means of the program VEDYAC. It has been found that computer simulation can predict very accurately the result of a test, provided the numerical models have been carefully calibrated to match the dummy tolerance bands. Once they have been calibrated and validated with a number of tests, the computer models can be very useful to extend the test results to different test conditions. For example such models have been used to evaluate the effect of the head being out-of-position before impact. The use of simulation is also very important in the design of new seats, where it can give accurate prediction of the tests, reducing greatly the need of further tests.
Recommended Content
Topic
Citation
Giavotto, V. and Conconi, L., "Dynamic Tests of Racing Seats and Simulation with Vedyac Code," SAE Technical Paper 983059, 1998, https://doi.org/10.4271/983059.Also In
References
- Cavanough J. M. Huang Y. Zhu Y. King A. I. Regional Tolerance of the shoulder, Thorax, Abdomen and Pelvis to Padding in Side Impact Stapp Car Crash Conference Proceedings 1993
- Cloward R. B. Lesioni acute della colonna cervicale Clinical Symposia 1983
- Adomeit D. Seat Design - A Significant Factor for Safety Belt Effectiveness 23 rd Stapp Car Crash Conference San Diego, CA, USA Oct. 17-19 1979 SAE No. 791004
- Otte D. Deformation Characteristics and Occupant Load Capacity in Lateral Impacts for Nearside Belted Front Car Passengers 37 th Stapp Car Crash Conference San Antonio, Texas, USA 1993
- Cesari D. Biofidelity of Side Impact Dummies Biomechanics of Impact Trauma, IRCOBI Conference Dec 13-14 1995
- Clarke T. D. Smedley D. C. Muzzy W. H. Gragg C. D. Schmidt R. E. Trout E. M. Impact Tolerance and Resulting Injury Patterns in the Baboon: Air Force Shoulder Harness - Lap Belt Restraint Stapp Car Crash Conference Proceedings 1972
- Foret-Bruno J. Y. Hartemann F. Thomas C. Tarrière C. Loyat B. Stherbatcheff G. Got C. Patel A. Occupant Velocity Change in Side Impact Method of Calculation - Application to a Sample of Real World Crashes 24 th Stapp Car Crash Conference Troy Michigan, USA Oct. 15-17 1980 SAE No. 801308
- Segal D. J. Side Impact Modelling using lumped mass and CAL-3D CVS Simulations Stapp Car Crash Conference Proceedings 1984
- Alfaro-Bou E. Fasanella E. L. Williams M. S. Crashworthy Design Considerations for General Aviation Seats Stapp Car Crash Conference Proceedings 1985
- Astori P. Aspetti biomeccanici nei fenomeni d'urto Udine Apr. 18-20 1996
- Benson B. R. Smith G. C. Kent R. W Monson C. R. Effect of Seat Stiffness in Out-of-Position Occupant Response in Rear-End Collision 40 th Stapp Car Crash Conference Albuquerque, New Mexico, USA Nov. 4-6 1996 SAE No. 962434
- Begeman P. C. King A. I. Prasad P. Spinal Loads Resulting from -Gx Acceleration 17 th Stapp Car Crash Conference Oklahoma City, Oklahoma, USA Nov. 12-13 1973 SAE No. 730977
- 1992
- Huelke D. F. Nusholtz G. S. Cervical Spine Biomechanics: A Review of the Literature Biomechanics of Impact Trauma, IRCOBI Conference Dec. 13-14 1995
- James M. B. Strother C. E. Warner C. Y. Decker R. L. Perl T. R. Occupant Protection in Rear-end Collisions: II. The Role of Seat Back Deformation in Injury Reduction 35 th Stapp Car Crash Conference San Diego, California, USA Nov. 18-20 1991 SAE No. 912914
- James M. B. Strother C. E. Warner C. Y. Decker R. L. Perl T. R. Occupant Protection in Rear-end Collisions: I. Safety Priorities and Seat Belt Effectiveness 35 th Stapp Car Crash Conference San Diego, California, USA Nov. 18-20 1991 SAE No. 912913
- Viano D. C. Influence of Seatback Angle on Occupant Dynamics in Simulated Rear-End Impacts Stapp Car Crash Conference Proceedings 1992
- Viano D. C. Blunt Impact Injury Assessment Biomechanics of Impact Trauma, IRCOBI Conference 13-14 Dicembre 1995
- Strother C. E. James M. B. Evaluation of Seat Back Strength and Seat Belt Effectiveness in Rear End Impacts Stapp Car Crash Conference Proceedings 1987