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Fore-and-Aft Stiffness and Damping Characteristics of 30 × 11.5 −14.5, Type VIII, Bias-Ply and Radial-Belted Aircraft Tires
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English
Abstract
An investigation was conducted to determine the fore and aft elastic response characteristics and footprint geometrical properties of 30 × 11.5 −14.5, Type VIII, bias-ply and radial-belted aircraft tires. Stiffness and damping characteristics of each tire were obtained from load-deflection curves generated from static tests. Tire footprints were obtained for various vertical loads, and geometrical measurements were obtained from the resulting silhouettes. Results of this investigation show considerable differences in stiffness and damping characteristics between the bias-ply and radial-belted tire designs. Footprint geometrical data indicate that footprint aspect ratio effects may interfere with improved hydroplaning potential associated with the radial-belted tire operating at higher inflation pressures. Tire-wheel slippage problems encountered when testing the radial-belted tire design required special attention.
Authors
Citation
Lopez, M., Davis, P., Vogler, W., and Yeaton, R., "Fore-and-Aft Stiffness and Damping Characteristics of 30 × 11.5 −14.5, Type VIII, Bias-Ply and Radial-Belted Aircraft Tires," SAE Technical Paper 881357, 1988, https://doi.org/10.4271/881357.Also In
References
- Davis, Pamela A. Lopez, Mercedes C. Static Mechanical Properties at 30 × 11.5 −14.5, Type VIII Aircraft Tires at Bias-Ply and Radial-Belted Design 1988
- Tanner, John A. Fore and Aft Elastic Response Characteristics of 34 × 9.9, Type VII, 14 Ply-Rating Aircraft Tires of Bias-Ply, Bias-Belted, and Radial-Belted Design NASA TN D-7449 1974
- Sleeper, Robert K. Dreher, Robert C. Tire Stiffness and Damping Determined from Static and Free-Vibration Tests NASATP 1671 1980
- Horne, Walter B. Dreher, Robert C. Phenomena of Tire Hydroplaning NASA TN-D 2056 1963
- Horne, Walter B. Yager, T. J. Ivey, D. L. Recent Studies to Investigate Effects of Tire Footprint Aspect Ratio on Dynamic Hydroplaning Speed. The Tire Pavement Interface Pottinger M. G. Yager T. J. American Society for Testing and Materials Philadelphia 1986