Roll Dynamics of Commercial Vehicles |
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| Authors: | M K Verma T D Gillespie Associate Research Scientist |
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| Institution: |
a Physical Factors Group, Highway Safety Research Institute, The University of Michigan, Ann Arbor, Michigan, U.S.A. |
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| Abstract: | An analytical model is developed here for studying the roll dynamics of commercial vehicles. Large displacements and rotations are accounted for in this nonlinear model so that it can be used for the study of roll dynamics well beyond the limits of wheel lift-off. The model is used to illustrate some of the dynamic phenomena in vehicle rollover, especially the interactive coupling between the roll and the vertical modes of motion. The influence of suspension backlash on rollover resistance is demonstrated, and the phenomenon of roll motion resonance is illustrated to suggest new means for evaluating vehicle rollover sensitivity. |
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