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NASA-TP-1917
Cornering characteristics of the nose-gear tire of the space shuttle orbite
Year: 1981
Abstract: An experimental investigation was conducted to evaluate cornering characteristics of the 32 x 8.8 nose gear tire of the space shuttle orbiter. Data were obtained on a dry concrete runway at nominal ground speeds ranging from 50 to 100 knots and over a range of tire vertical loads and yaw angles which span the expected envelope of loads and yaw angles to be encountered during space shuttle landing operations. The cornering characteristics investigated included side and drag forces and friction coefficients, aligning and overturning torques, friction force moment arm, and the lateral center of pressure shift. Results of this investigation indicate that the cornering characteristics of the space shuttle nose gear tire are insensitive to variations in ground speed over the range tested. The effects on cornering characteristics of variations in the tire vertical load and yaw angle are as expected. Trends observed are consistent with trends observed during previous cornering tests involving other tire sizes.
Subject: AERODYNAMIC CHARACTERISTICS
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:47:47Z | |
| date available | 2017-09-04T18:47:47Z | |
| date copyright | 01/01/1981 | |
| date issued | 1981 | |
| identifier other | KNBBFEAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;query=autho/handle/yse/229027 | |
| description abstract | An experimental investigation was conducted to evaluate cornering characteristics of the 32 x 8.8 nose gear tire of the space shuttle orbiter. Data were obtained on a dry concrete runway at nominal ground speeds ranging from 50 to 100 knots and over a range of tire vertical loads and yaw angles which span the expected envelope of loads and yaw angles to be encountered during space shuttle landing operations. The cornering characteristics investigated included side and drag forces and friction coefficients, aligning and overturning torques, friction force moment arm, and the lateral center of pressure shift. Results of this investigation indicate that the cornering characteristics of the space shuttle nose gear tire are insensitive to variations in ground speed over the range tested. The effects on cornering characteristics of variations in the tire vertical load and yaw angle are as expected. Trends observed are consistent with trends observed during previous cornering tests involving other tire sizes. | |
| language | English | |
| title | NASA-TP-1917 | num |
| title | Cornering characteristics of the nose-gear tire of the space shuttle orbite | en |
| type | standard | |
| page | 30 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1981 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC CHARACTERISTICS | |
| subject keywords | AERODYNAMIC LOADS | |
| subject keywords | COEFFICIENT OF FRICTION | |
| subject keywords | GROUND SPEED | |
| subject keywords | LANDING GEAR | |
| subject keywords | MECHANICAL PROPERTIES | |
| subject keywords | NOSE TIPS | |
| subject keywords | SPACE SHUTTLE ORBITERS |