Browse Publications Technical Papers 2004-01-1739
2004-03-08

Effects of Tire and Vehicle Design Characteristics on Rollover of Tractor Semi-Trailers 2004-01-1739

Understanding the effects of tire and vehicle properties on the rollover propensity of tractor semi-trailer trucks is essential. The major objective of the project described by this paper was to develop a simplified computational tool that can be used to understand and predict the effects of various tire characteristics and truck design parameters on rollover under steady cornering and non-tripped conditions. In particular, this tool may be used to help understand the basic mechanisms governing rollover propensity of trucks equipped with New Generation Wide Single tires as contrasted with conventional tires.
Effects of tire flexibility, roll-compliant suspensions, fifth - wheel lash and nonlinear suspension characteristics are included in the model and are presented below. Design parameter data used as input to the model were obtained from Michelin Americas Research and Development Corporation. Results have shown that changing from dual tires to New Generation Wide Single tires increases the rollover threshold by approximately 3%.

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