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Tire Rolling Resistance - A Speed Dependent Contribution
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English
Abstract
A contribution to tire rolling resistance which arises from tire tread impact with the roadway is defined. These impact losses depend on the square of the vehicle speed. The physics of the process is revealed using a realistic, simple model coupled with Newton's second law. It is shown how the losses depend on tire characteristics. It is not feasible to determine to high accuracy the magnitude of the effect from such an uncomplicated model, however. The speed independent losses are also discussed in terms of a simple model. Finally, analytic expressions are presented for rolling resistance (speed dependent + speed independent) as a function of tire characteristics.
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Citation
Smith, J., Tracy, J., and Potter, D., "Tire Rolling Resistance - A Speed Dependent Contribution," SAE Technical Paper 780255, 1978, https://doi.org/10.4271/780255.Also In
References
- Bekker M. G. and Semonin E. V., J. of Automotive Engineering 6, 6 (1975). For more recent experimental data see Shepherd P. D., SAE 770333 (1977).
- Clark S. K., private communication.
- Clark S. K., Dodge R. N., Ganter R. J., and Luchini J. R., Report No. UM-010654-3-1, prepared for the Department of Transportation by The Regents of the University of Michigan, 1974. See Fig. 6.
- Curtiss W. W., SAE 690108 (1969).
- Dayman, B. Jr., SAE 760153 (1976).
- Walter J. D. and Conant F. S., Tire Sci. Technol. 2, 235 (1974).
- Elliott D. R. et al, SAE 710575 (1971).