This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Influence of Initial Length of Lap-Shoulder Belt on Occupant Dynamics-A Comparison of Sled Testing and MVMA–2D Modeling
Annotation ability available
Sector:
Language:
English
Abstract
The primary purpose of this parameter study was to carefully document occupant dynamics in well-controlled sled tests for comparison with simulated responses from the MVMA-2D analytical model. The test involved a Part 572 dummy exposed to a frontal deceleration while on a bucket seat and restrained by a lap-shoulder belt system. The length of belt webbing was incrementally increased from a snug configuration by as much as 30 cm. The addition of webbing increased the forward excursion, velocity, and acceleration of the head, chest, and hip without affecting the peak tension in the belt segments of the restraint system. Belt tension was identified as a poor measure of the horizontal load on the chest due to significant reaction forces in the lateral and vertical direction at the belt anchorages. The advanced belt system subprogram of the MVMA-2D model had to be modified to account for the influence of the lateral anchorage location on belt tensions and the planar restraint of the occupant. Although reasonable agreement was achieved in simulating the occupant dynamics, belt loads were dissimilar. The MVMA-2D model is judged to be a sophisticated, delicate tool requiring additional study and refinement.
Recommended Content
| Technical Paper | Response of Out-of-Position Dummies in Rear Impact |
| Technical Paper | Simulation of BioSID Head-Neck Motions |
| Technical Paper | Appling CAE to Understand the Causality of Dummy Neck Injury Readings |
Authors
Citation
Viano, D., Culver, C., and Prisk, B., "Influence of Initial Length of Lap-Shoulder Belt on Occupant Dynamics-A Comparison of Sled Testing and MVMA–2D Modeling," SAE Technical Paper 801309, 1980, https://doi.org/10.4271/801309.Also In
References
- Bohlin N. “Fifteen Years with the Three-Point Safety Belt.” Int'l Conf. of the Int'l Assoc. for Accident and Traffic Med, 6th Proc. 142 159 1977
- Aasberg A. Bohlin N. “Review of Seat Belt Crash Performance in Modern Volvo Vehicles.” Seat Belt Seminar 194 217 1977
- Murphy M. J. Huelke D. F. Sherman H. W. “Case Descriptions of Lap-Shoulder Belted Occupants in Car Crashes.” SAE Paper No. 770151 March 1977
- Hartemann F. Thomas C. et al “Belted or Not Belted: The Only Difference Between Two Matched Samples of 200 Car Occupants.” 21st Stapp Car Crash Conference Proc. SAE Paper No. 770917 95 150 1977
- Huelke D. F. Sherman H. W. Murphy M. J. “Severe to Fatal Injuries to Lap-Shoulder Belted Car Occupants.” SAE Paper No. 770149 March 1977
- Reinfurt D. W. Silva C. Z. Seila A. F. “A Statistical Analysis of Seat Belt Effectiveness in 1973-1975 Model Cars Involved in Towaway Crashes: Technical Summary.” U.S. Dept. of Transportation, National Highway Traffic Safety Administration Report No. D0T-HS-5-01255-2 May 1976
- Huelke D. F. Sherman H. W. et al “Effectiveness of Current and Future Restraint Systems in Fatal and Serious Injury Automobile Crashes. Data from On-Scene Field Accident Investigations.” SAE Paper No. 790329 March 1979
- Mackay G. M. Gloyns P. F. et al “Serious Trauma to Car Occupants Wearing Seat Belts.” Int'l Conf. on Biomechanics of Serious Trauma, 2nd Proceedings 20 29 1975
- Rininger A. R. Boak R. W. “Lap/Shoulder Belt Effectiveness.” Amer. Assoc. for Auto. Medicine, 20th Conference Proceedings 262 279 1976
- Huelke D. F. Lawson T. E. et al “The Effectiveness of Belt Systems in Frontal and Rollover Crashes.” Int'l Conf. of the Int'l Assoc. for Accident and Traffic Medicine, 6th Proc. 168 203 1977
- Cromack R. J. Mason R. L. “Restraint System Use and Misuse.” Amer. Assoc. for Auto. Medicine, 20th Conf. Proceedings 367 381 1976
- Pursel H. D. Bryant R. W. “Matching Case Methodology for Measuring Restraint Effectiveness.” SAE Paper No. 780415 February 1978
- Dalmotas D. J. Keyl P. M. “An Investigation Into the Level of Protection Afforded to Fully Restrained Passenger Vehicle Occupants.” Vehicle Systems Division, Road and Motor Vehicle Traffic Safety Branch Transport, Canada Report
- Huelke D. F. Lawson T. E. et al “The Effectiveness of Belt Systems in Frontal and Rollover Crashes.” SAE Paper No. 770148 1977
- Scott R. E. Flora J. D. Marsh J. C. IV “An Evaluation of the 1974 and 1975 Restraint Systems.” Highway Safety Research Institute/University of Michigan Report No. UM-HSRI-76-13 1976
- Herbert D. C. Vazey B. A. Henderson J. M. “Seat Belt Crash Performance in Australia.” Seat Belt Seminar 276 306 1977
- Adomeit D. Goegler H. VuHan V. “Expected Belt-Specific Injury Patterns Dependent on the Angle of Impact.” Int'l Conf. on Impact Trauma 3rd Proc. 242 250 1977
- Behrens S. Suren E. G. et al “Injury Patterns Caused by Seat Belts.” Int'l Conf. on Impact Trauma, 3rd Proc. 80 92 1977
- McPherson D. Oversby M. “Investigation of Injury Mechanisms in Fully Restrained Vehicle Occupants.” Int'l Conf. of the Intern'1 Assoc. for Accident and Traffic Medicine, 6th Proc. 359 364 1977
- Reidelbach W. “Recent and Future Improvements in Seat Belt Design.” Int'l Conf. of the Int'l Assoc. for Accident and Traffic Medicine, 6th Proc. 218 231 1977
- Weissner R. “A Comparison of Advanced Belt Systems Regarding Their Effectiveness.” SAE Paper No. 780418 February 1978
- Reidelbach W. Scholtz H. “Advanced Restraint System Concepts.” SAE Paper No. 790321 March 1979
- Hontschik H. Muller E. Ruter G. “Necessities and Possibilities of Improving the Protective Effect of Three-Point Seat Belts.” 21st Stapp Car Crash Conf. Proc. SAE Paper No. 770933 793 831 1977
- Svensson L. G. “Means for Effective Improvement of the Three-Point Seat Belt in Frontal Crashes.” 22nd Stapp Car Crash Conf. Proc. SAE Paper No. 780898 449 479 1978
- Walsh M. J. Kelleher B. J. “Development of a Preloaded, Force-Limited Passive Belt System for Small Cars.” SAE Technical Paper # 800300 1980
- Herbert D. C. Stott J. D. Corben C. W. “Head Space Requirements for Seat Belt Wearers.” 19th Stapp Car Crash Conference Proc. SAE Paper No. 751164 675 704 1975
- Adomeit D. Heger A. “Motion Sequence Criteria and Design Proposals for Restraint Devices in Order to Avoid Unfavorable Biomechanic Conditions and Submarining.” 19th Stapp Car Crash Conference Proc. SAE Paper No. 751146 139 165 1975
- Adomeit D. “Evaluation Methods for the Biomechanical Quality of Restraint Systems During Frontal Impact.” 21st Stapp Car Crash Ionf. Proc. SAE Paper No. 770936 911 932 1977
- Henderson J. M. Vazey B. A. et al “The Effect of Seat Belt Design and Anchorage Geometry on Injury Patterns.” Int'l Conf. of the Int'l Assoc. for Accident and Traffic Medicine, 6th Proc. 407 422 1977
- Hendler E. O'Rourke J. et al “Evaluation of an Advanced Automotive Restraint System Using Human Subjects.” NHTSA Interagency Agreement Final Report No. DOT-HS-063-1-0811 A (Report No. NADC-75067-40) 1975
- Mellander H. Koch M. “Restraint System Evaluation - A Comparison Between Barrier Crash Tests, Sled Tests, and Computer Simulation.” SAE Paper 780605 June 1978
- Carr R. W. “Performance of Advanced Passive Restraints.” SAE Paper No. 780679 August 1978
- Kidd E. A. Walsh M. J. “Effectiveness of ATD's and Cadavers in Evaluation of Restraint System.” Int'l Technical Conf. on Exper'l Safety Vehicles, 6th Proc. 349 363 1976
- Fayon A. Tarriere C. et al “Thorax of 3-Point Belt Wearers During a Crash (Experiments with Cadavers).” 19th Stapp Car Crash Conf. Proc. 195 223 SAE Paper No. 751148 November 1975
- Cromack J. R. Ziperman H. H. “Three-Point Belt Induced Injuries: A Comparison Between Laboratory Surrogates and Real World. Accident Victims.” 19th Stapp Car Crash Conference Proc. SAE Paper No. 751141 1 24 November 1975
- Patrick L. M. Levine R. S. “Injury Assessment of Belted Cadavers.” Wayne State University Contract Report No. D0T-HS-146-3-753 May 1975
- Massing D. E. Kostyniuk G. W. Pugliese S. M. “Crash Victim Simulation--A Tool to Aid Vehicle Restraint System Design and Development.” Int'l Technical Conf. on Experimental Safety Vehicles, 6th Proc. 363 381 1976
- Robbins D. H. Bennett R. O. Jr. Bowman B. M. “User-Oriented Mathematical Crash Victim Simulator.” SAE Paper No. 720963 1972
- Bartz J. A. “Development and Validation of a Computer Simulation of a Crash Victim in Three Dimensions.” SAE Paper No. 720961 1972
- McHenry R. R. Naab K. N. “Computer Simulation of the Automobile Crash Victim in a Frontal Collision -- A Validation Study.” Cornell Aeronautical Laboratory, Inc. Final Technical Report No. YB-2126-V-1R (Contract No. PH 108-65-174) 1966
- Fleck J. T. Butler F. E. Vogel S. L. “An Improved Three Dimensional Computer Simulation of Vehicle Crash Victims.” Final Contract Report No. DOT-HS-053-2-485 1975
- Young R. D. “A Three Dimensional Mathematical Model of an Automobile Passenger.” Research Report No. 140-2 of (Study 2-5-69-140) Texas Transportation Institute, Texas Highway Department, and Texas A&M University 1969
- Robbins D. H. “Three Dimensional Simulation of Advanced Automotive Restraint Systems.” SAE Paper No. 700421 1970
- Bowman B. M. Bennett R. O. Robbins D. H. “MVMA Two-Dimensional Crash Victim Simulation.” 1-3 UM/HSRI Report 79-5-1. Final Report 1979
- Schneider L. W. Bowman B. M. “Prediction of Head/Neck Dynamic Response of Selected Military Subjects to -G x Acceleration.” Aviation, Space, and Environmental Medicine 211 223 January 1978
- Alem N. M. Melvin J. W. Bowman B. M. Benson J. B. “Whole Body Response Research Program.” UM/HSRI-77-39-1 I-IV 1978 Alem N. M. Bowman B. M. et al “Whole-Body Human Surrogate response to Three-Point Harness Restraint.” 22nd Stapp Car Crash Conference Proc. SAE Paper No. 780895 359 399 1978
- Hubbard R. P. McLeod D. G. “Geometric, Inertial, and Joint Characteristics of Two Part 572 Dummies for Occupant Modeling.” Proceedings of the 21st Stapp Car Crash Conference SAE 770937 933 972 1977
- Danforth J. P. Prisk B. C. “Occupant Restraint System Modeling Using MVMA TwoDimensional Occupant Dynamics Model.” Proceedings of the 21st Conf. of the Amer. Assoc. for Auto. Medicine 149 161 1979
- Eppinger R. H. “Prediction of Thoracic Injury Using Measurable Experimental Parameters.” 6th ESV Conf. Washington, D.C. 1976
- Viano D. C. Culver C. C. Prisk B. C. “Influence of Initial Length of the Lap-Shoulder Belt in Occupant Dynamics--A Comparison of Sled Testing and MVMA-2D Modeling.” General Motors Research Publication GMR-3345 1980