This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimizing Occupant Restraint Systems for Tactical Vehicles in Frontal Crashes
Technical Paper
2018-01-0621
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The objective of this study was to optimize the occupant restraint systems for a light tactical vehicle in frontal crashes. A combination of sled testing and computational modeling were performed to find the optimal seatbelt and airbag designs for protecting occupants represented by three size of ATDs and two military gear configurations. This study started with 20 sled frontal crash tests to setup the baseline performance of existing seatbelts, which have been presented previously; followed by parametric computational simulations to find the best combinations of seatbelt and airbag designs for different sizes of ATDs and military gear configurations involving both driver and passengers. Then 12 sled tests were conducted with the simulation-recommended restraint designs. The test results were further used to validate the models. Another series of computational simulations and 4 sled tests were performed to fine-tune the optimal restraint design solutions. The sled tests with the optimized seatbelt and airbag designs provided significant improvement of occupant protection from the baseline tests in terms of the head, neck, chest, and lower extremity injury measures. Using a baseline seatbelt without an airbag, the ATD tended to contact the steering wheel or the instrument panel, or sustained a significant head whipping motion inducing large head and neck injury measures. By adding the airbag and reducing the load limit in the seatbelt, the injury measures were improved significantly. This study demonstrated the benefit of adding a properly designed airbag and advanced seatbelt to improve the occupant protection in frontal crashes under an environment representing a light tactical vehicle.
Recommended Content
Technical Paper | DOE for Non Linear Structural Analysis of ROPS (Rollover Protective Structure) |
Technical Paper | Dent Resistance of Cold-Rolled Low-Carbon Steel Sheet |
Technical Paper | Investigation of Inflatable Belt Restraints |
Authors
- Jingwen Hu - University of Michigan - Ann Arbor
- Nichole Ritchie Orton - University of Michigan - Ann Arbor
- Cong Chen - University of Michigan - Ann Arbor
- Matthew Reed - University of Michigan - Ann Arbor
- Jonathan Rupp - Emory University
- Rebekah Gruber - US Army TARDEC
- David Clark - US Army TARDEC
- Risa Scherer - US Army TARDEC
Topic
Citation
Hu, J., Ritchie Orton, N., Chen, C., Reed, M. et al., "Optimizing Occupant Restraint Systems for Tactical Vehicles in Frontal Crashes," SAE Technical Paper 2018-01-0621, 2018, https://doi.org/10.4271/2018-01-0621.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 |
Also In
References
- Forman , J. , Lopez-Valdes , F. , Lessley , D. , Kindig , M. et al. Rear Seat Occupant Safety: An Investigation of the Progressive Force-Limiting, Pretensioning 3-Point Belt System Using Adult PMHS in Frontal Sled Tests Stapp Car Crash Journal 53 49 74 2009
- Grujicic , M. , Bell , W.C. , Pandurangan , B. , and Glomski , P.S. Fluid/Structure Interaction Computational Investigation of Blast-Wave Mitigation Efficacy of the Advanced Combat Helmet Journal of Materials Engineering and Performance 20 6 877 893 2011
- Harris , R. , Griffin , L. , Hayda , R. , Roundtree , M. et al The Effects of Antipersonnel Blast Mines of the Lower Extremity IRCOBI 457 467 1999
- Holmqvist , K. , Davidsson , J. , Mendoza-Vazquez , M. , Rundberget , P. et al. Improving Hybrid III Injury Assessment in Steering Wheel Rim to Chest Impacts Using Responses from Finite Element Hybrid III and Human Body Model Traffic Injury Prevention 15 2 196 205 2014
- Hu , J. , Fischer , K. , Lange , P. , and Adler , A. Effects of Crash Pulse, Impact Angle, Occupant Size, Front Seat Location, and Restraint System on Rear Seat Occupant Protection SAE Technical Paper 2015-01-1453 2015 10.4271/2015-01-1453
- Hu , J. , Klinich , K.D. , Manary , M.A. , Flannagan , C.A.C. et al. Does Unbelted Safety Requirement Affect Protection for Belted Occupants? Traffic Injury Prevention 18 sup1 S85 S95 2017
- Hu , J. , Reed , M. , Rupp , J. , Fischer , K. et al. Optimizing Seat Belt and Airbag Designs for Rear Seat Occupant Protection in Frontal Crashes Stapp Car Crash Journal 61 67 100 2017
- Hu , J. , Wood , L. , Orton , N. , Chen , C. et al
- Kimpara , H. , Iwamoto , M. , Watanabe , I. , Miki , K. et al. Effect of Assumed Stiffness and Mass Density on the Impact Response of the Human Chest Using a Three-Dimensional FE Model of the Human Body Journal of Biomechanical Engineering 128 5 772 776 2006
- Mertz , H.J. , Irwin , A.L. , and Prasad , P. Biomechanical and Scaling Bases for Frontal and Side Impact Injury Assessment Reference Values Stapp Car Crash Journal 47 155 188 2003
- Newberry , W. , Lai , W. , Carhart , M. , Richards , D. et al Modeling the Effects of Seat Belt Pretensioners on Occupant Kinematics During Rollover SAE Technical Paper 2006-01-0246 2006 10.4271/2006-01-0246
- Reed , M.P. , and Ebert , S.M. 2013
- Wang , Y. , Bai , Z. , Cao , L. , Reed , M.P. et al. A Simulation Study on the Efficacy of Advanced Belt Restraints to Mitigate the Effects of Obesity for Rear-Seat Occupant Protection in Frontal Crashes Traffic Injury Prevention 16 Suppl 1 S75 S83 2015
- Zaseck , L.W. , Orton , N.R. , Gruber , R. , Rupp , J. et al. The Influence of Personal Protection Equipment, Occupant Body Size, and Restraint System on the Frontal Impact Responses of Hybrid III ATDs in Tactical Vehicles Traffic Injury Prevention 18 6 642 649 2017