This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Numerical Prediction of Slip Energy of a Straight Rolling Tire
Annotation ability available
Sector:
Language:
English
Abstract
This paper presents the results of a study in which the free rolling behavior of a F-16 tire was numerically modeled. The tire contact patch normal and shear stresses as well as the displacement distributions were obtained from a three dimensional finite element computer program used at the Wright-Patterson Air Force Base, Ohio. It is shown how the predicted deflections are in reasonable agreement with the rated load vs. deformation characteristics, while predicting the effective rolling radius using a theoretical solution. A significant development of this work is the formulation and execution of a finite difference algorithm to evaluate the contact patch slip velocity distribution by methodically manipulating the above computer program results. Slip velocities are then utilized in assessing the rate of slip energy generation at the contact patch, which directly contributes to tire wear. Finally, it is shown how even a low brake slip ratio can increase the contact patch slip energy.
Recommended Content
Authors
Citation
Tadepalli, S., Gunaratne, M., Chawla, M., Ulrich, P. et al., "Numerical Prediction of Slip Energy of a Straight Rolling Tire," SAE Technical Paper 941179, 1994, https://doi.org/10.4271/941179.Also In
References
- Faria, L.O. Bass, J.M. Oden, J.T. Becker, E.B. “A three dimensional rolling contact model for a reinforced rubber tire” Tire Science and Technology 17 3 July-Sep. 1989 217 233
- Gunaratne, M. “Computational prediction of static and rolling response of an aircraft tire on a rigid surface as a prelude to wear studies” Research report submitted to Landing Gear System Wright-Patterson AFB, Ohio, and Research and Development Laboratories Culver City, California 1991
- Gunaratne, M, “Computational modeling of factors contributing to tire wear” Research report submitted to Landing Gear System Wright-Patterson AFB, Ohio, and Research and Development Laboratories Culver City, CA December 1992
- Hadekel, R. “The Mechanical prediction of pneumatic tires” Technical Information Bureau for Chief Scientist, British Ministry of Supply 1952
- Mooney, M. “A theory of large defromations” Journal of Applied Physics 11 Sept. 1940
- Wagner, P.M. “Improved tire life” Proceedings of the Kick Off meeting June 1991