This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Characterization of Key Vehicle Parameters Affecting Dynamic Rollover Propensity Using Simulation and 1/10th Model Testing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 14, 2006 by SAE International in United States
Annotation ability available
Rollover propensity is an important safety issue which should be considered early in the design of a vehicle. Although there is a trend toward higher-tech solutions to mitigate rollover risk, we feel that a vehicle designer should also be fully aware of the impact many of the vehicle's design parameters have on rollover propensity. Such awareness is essential to making appropriate engineering tradeoffs throughout the vehicle development process.
In this paper, we present a study performed to gain a better understanding of the factors affecting the roll tendency of a vehicle. The equations of motion for a vehicle ignoring suspension effects and tire deflections are developed to gain an understanding of the physics involved and to preliminarily identify factors using a generic Matlab™ code. Further and more complete analysis was then completed using ADAMS™ Car. ADAMS™ Insight was used to vary few dynamic parameters for the vehicle executing a Fishhook maneuver, and a statistical analysis was performed on the resulting data using Minitab™.
Experimentation was conducted on 1/10th model of Traxxas remote control car to see if the same conclusions reached in simulation could be obtained with scale model testing. For combinations of the varying dynamic factors in a fractional factorial experiment, the roll angle is measured using a sensor and statistical analysis is performed on the resulting data using Minitab™. The simulation and scale model test results are compared to conclude the relative impact of the factors on roll tendency. This knowledge can help automotive engineers better understand the impact of design decisions involving the parameters under study.
|Technical Paper||Influence of Suspension Properties on Vehicle Roll Stability|
|Technical Paper||A Study on SUV Parameters Sensitivity on Rollover Propensity|
|Technical Paper||Methodology for Simulation of Rollover Cases|
CitationMittal, D., Gulve, A., and Weaver, J., "Characterization of Key Vehicle Parameters Affecting Dynamic Rollover Propensity Using Simulation and 1/10th Model Testing," SAE Technical Paper 2006-01-1951, 2006, https://doi.org/10.4271/2006-01-1951.
- Day Terry D. and Garvey J. Travis, “Applications and Limitations of 3-Dimensional Vehicle Rollover Simulation,” SAE 2000-01-0852.
- Whitehead Randy, Travis William, Bevly David M. and Flowers George, 2004, “A Study of the Effect of Various Vehicle Properties on Rollover Propensity,” SAE 2004-01-2094.
- Ponticel, P. 2003, “Dynamic testing Rollover on the Way,” Automotive Engineering International (Nov 2003) pp 26-28.
- Christos, J. P. and Guenther, D. A. 1992, “The Measurement of Static Rollover Metrics,” SAE 920582.
- D'Entremont, K. L., Zhengyu, L. and Nalcez, A. G. 1993, “An Investigation into Dynamic Measures of Vehicle Rollover Propensity,” SAE 930831.
- Cooperrider, N. K., Hammound, S. A.and Thomas, T.M. 1990, “Testing and Analysis of Vehicle Rollover Behavior,” SAE Paper No. 900366.
- Marine Micky C., Wirth Jeffrey L. and Thomas Terry M., 1999, “Characteristics of On-Road Rollovers,” SAE Paper No. 01-0122.
- Allen, R., Szostak, H., Rosenthal, T., and Klyde, D., “Field Testing and Computer Simulation Analysis of Ground Vehicle Dynamic Stability,” SAE 900127
- Garrott, W. R., and Heydkinger, G. J. 1992, “An Investigation, Via Simulation, of Vehicle Characteristics that contribute to Steering Maneuver Induced Rollover,” SAE Paper No. 920585.
- Allen, R. W., Szostak, H.T, Rosenthal, T. J. and Klyde, D. H., “Field Testing and Computer Simulation Analysis of Ground Vehicle Dynamic Stability,” SAE Paper No. 900127.
- Gillespie Thomas D., “Fundamentals of Vehicle Dynamics,”
- Milliken William F. and Milliken Douglas L., “Race Car Vehicle Dynamics,”