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Development of a Computational Method to Predict Occupant Motions and Neck Loads During Rollovers
Technical Paper
2005-01-0300
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The mechanics of on-road, friction-induced rollovers were studied with the aid of a three-dimensional computer code specifically derived for this purpose. Motions of the wheels, vehicle body, occupant torso, and head were computed. Kane's method was utilized to develop the dynamic equations of motion in closed form. On-road rollover kinematics were compared to a dolly-type rollover at lesser initial speed, but generating a similar roll rotation rate. The simulated on-road rollover created a roof impact on the leading (driver's) side, while the dolly rollover simulation created a trailing-side roof impact. No head-to-roof contacts were predicted in either simulation. The first roof contact during the dolly-type roll generated greater neck loads in lateral bending than the on-road rollover. This work is considered to be the first step in developing a combined vehicle and occupant computational model for studying injury potential during rollovers.
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Authors
- Gary T. Yamaguchi - Exponent Failure Analysis Associates
- Darrin Richards - Exponent Failure Analysis Associates
- Robert E. Larson - Exponent Failure Analysis Associates
- Michael R. Carhart - Exponent Failure Analysis Associates
- Robert S. Cargill - Exponent Failure Analysis Associates
- William Lai - Exponent Failure Analysis Associates
- Catherine Ford Corrigan - Exponent Failure Analysis Associates
Topic
Citation
Yamaguchi, G., Richards, D., Larson, R., Carhart, M. et al., "Development of a Computational Method to Predict Occupant Motions and Neck Loads During Rollovers," SAE Technical Paper 2005-01-0300, 2005, https://doi.org/10.4271/2005-01-0300.Also In
SAE 2005 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V114-6; Published: 2006-02-01
Number: V114-6; Published: 2006-02-01
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