Browse Publications Technical Papers 2008-01-0178
2008-04-14

Analysis of Vehicle-to-Ground Impacts During a Rollover with an Impulse-Momentum Impact Model 2008-01-0178

This paper explores the accuracy of a planar, impulse-momentum impact model in representing the dynamics of three vehicle-to-ground impacts that occurred during a SAE J2114 dolly rollover test. The impacts were analyzed, first, using video analysis techniques to obtain the actual velocity conditions, accelerations, impact force components and the energy loss for each of the impacts. Next, these same impacts were analyzed using the known initial velocity conditions and the subject impact model. The equations of this impact model yielded calculated values for the velocity changes and energy loss for each impact. These calculated results were then compared to the actual dynamics data from the video analysis of the impacts to determine the accuracy of the impact model results. For all three vehicle-to-ground impacts considered in this study, the impact model results for the velocity changes and energy loss showed excellent agreement with the video analysis results for these parameters. These results suggest that it is reasonable to use this impact model to examine the influence of various factors on rollover dynamics.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
We also recommend:
TECHNICAL PAPER

A Markov Model for Driver Turn Prediction

2008-01-0194

View Details

TECHNICAL PAPER

Factors Influencing Roof-to-Ground Impact Severity: Video Analysis and Analytical Modeling

2007-01-0726

View Details

TECHNICAL PAPER

Evaluation of the Kinematic Responses and Potential Injury Mechanisms of the Jejunum during Seatbelt Loading

2015-22-0008

View Details

X