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Spin-Up Studies of the Space Shuttle Orbiter Main Gear Tire
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Abstract
One of the factors needed to describe the wear behavior of the Space Shuttle Orbiter main gear tires is their behavior during the spin-up process. An experimental investigation of tire spin-up processes was conducted at the NASA Langley Research Center's Aircraft Landing Dynamics Facility (ALDF). During the investigation, the influence of various parameters such as forward speed and sink speed on tire spin-up forces were evaluated. A mathematical model was developed to estimate drag forces and spin-up times and is presented. The effect of prerotation was explored and is discussed. Also included is a means of determining the sink speed of the orbiter at touchdown based upon the appearance of the rubber deposits left on the runway during spinup.
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Citation
Daugherty, R. and Stubbs, S., "Spin-Up Studies of the Space Shuttle Orbiter Main Gear Tire," SAE Technical Paper 881360, 1988, https://doi.org/10.4271/881360.Also In
References
- Davis, Pamela A. Stubbs, Sandy M. Tanner, John A. Aircraft Landing Dynamics Facility, A Unique Facility with New Capabilities SAE 851938 Aerospace Technology Conference and Exposition Long Beach, CA October 1985
- Horne, Walter B. Experimental Investigation of Spin-up Friction Coefficients on Concrete and Nonskid Carrier Deck Surfaces April 1960
- Byrdsong, Thomas A. McCarty, John Locke Yager, Thomas J. Investigation of Aircraft Tire Damage Resulting From Touchdown on Grooved Runway Surfaces March 1972