This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Design and Evaluation of a New Portable Restraint for Motor Coach Rollover Occupant Safety
Technical Paper
2011-26-0093
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2011
Language:
English
Abstract
The necessity for avoiding the occupant ejection from their seats during motor coach rollover accidents is of supreme importance. The seat belt as a safety device is the best practical way of achieving this task. As per the motorcoach Enhanced Safety Act of 2009 passed in the United States senate, requires new motorcoaches to be installed with safety belts for each seating position. This bill also suggests the possibility of retrofitting seat belts on the existing motorcoaches. The use of portable seatbelt to restraint occupant is more economical as compared to retrofit the seat belt. This fact motivates the further research on portable restraint device. This paper demonstrates the evaluation of the first version of the Portable Restraint Device (PRD) using full scale bus rollover test. This test identified the shortcoming of this current device in securing to the bus seat and its non user friendly design. The computational technique is used to devise a new design of PRD with three point restraint system. This design concept is evaluated using computational method to identify the interaction of the restraint shoulder strap with the occupant neck. The new design of the portable restraint is presented in this paper based on the understanding of full scale test result and the computational analysis. The new design of the PRD is sleek and more user friendly.
Recommended Content
| Technical Paper | The Daimler-Benz Supplemental Restraint System |
| Technical Paper | Occupant Kinematics and Restraint Effectiveness during a Quarter-Turn Rollover in a Heavy Truck |
| Technical Paper | Heavy Truck Safety System Performance |
Authors
Citation
Thorbole, C., Renfroe, D., Batzer, S., and Tanwar, D., "Design and Evaluation of a New Portable Restraint for Motor Coach Rollover Occupant Safety," SAE Technical Paper 2011-26-0093, 2011, https://doi.org/10.4271/2011-26-0093.Also In
References
- Friedman, D Nash, C E “Measuring Rollover Roof Strength for Occupant Protection” IJCRASH 8 2003 97 105
- Forrest, Steve Meyer, Steve Cahill, Andrew Herbst, Brian Head and Neck Injury Potential in Inverted Impact Tests 20th International Technical Conference ESV Lyon, France Paper number 07-03713
- Friedman, Donald Nash, Carl Advanced Roof Design for Rollover Protection 17th International Technical Conference ESV Amsterdam, Netherland Paper number 01-S12-W-94
- Chandrashekhar, K et al. “Computational Analysis of a Near and Far Side Occupant Kinematics in a Vehicle Rollover With Different Restraints” Paper Number 09-0491-W Stuttgart 21st ESV June 15-18 2009
- Berg, F. A Niewhner, W. “Pointers Toward the Improvement of Safety In Buses, Derived From an Analysis of 371 Accidents Involving Buses In Germany And From Crash Test Results” ESV Germany Paper no 98-S4-O-03
- Prasad, Aloke at al. “Status of NHTSA Motorcoach Safety Plan” ESV, Paper Number : 09-0448
- S.554: Motorcoach Enhanced Safety Act of 2009 111th Congress 2009-2010
- Chandrashekhar, K et al. “Performance Evaluation of a Portable Restraint for a Motor Coach Occupant in a Rollover Accident” IMECE2009-12885 November 13-19 2009
- LS-DYNA reference manual version 971
- MADYMO reference manual version 7.0
- http://www.ncac.gwu.edu/vml/models.html
- Martinez, L et al. “Improving Occupant Safety in Coach Rollover” IJCrash 2003 8 2 121 132
- Soltis, S J et al. “Development of Side Impact Neck Injury Criteria and Tolerances for Occupants of Sideward Facing Aircraft Seats” NATO/PFP unclassified paper RTO-MP-AVT-097