| 摘要 |
PROBLEM TO BE SOLVED: To prevent an accident caused by a wheel of an aircraft by alleviating the impact on the wheel and a runway upon landing, while in a conventional aircraft, a surface of a tire is replaced for reuse since the wheel rotates rapidly due to the friction against the road surface upon landing, and the temperature of a tire of a large aircraft goes as high as 400°C emitting white smoke due to the frictional heat, though the main body is also fatigued even after the replacement of the surface only, which leads to the accident. SOLUTION: The wheel to be used is provided with the power for obtaining a predetermined rotational frequency before landing. Small power is enough for this purpose since it is not for moving the aircraft body. The speed upon landing is measured by relating a sensor buried in the surface of the runway to a sensor on the aircraft side, and the predetermined rotational frequency is given to the wheel to achieve smooth landing. COPYRIGHT: (C)2007,JPO&INPIT
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