제어로봇시스템학회:학술대회논문집
- 1996.10b
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- Pages.1300-1303
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- 1996
Study on dynamics of the cross-couplig phenomenon between longitudinal and lateral motion
종/횡운동 coupling 상태에 대한 비행역학 연구
Abstract
In this paper a typical problem is examined that a light, general aviation airplane, such as Cessna or Navion, in gliding turn flight shows helical-dive phenomenon when pilots try to stop the descent by using elevator only. It is known from pilot's experience that in a certain flight trim it is impossible to recover from helical-dive by using elevator only. From this study it is shown that helical-dive phenomenon is involved with longitudinal/lateral dynamics coupling to airplane's aerodynamics. Also this phenomenon consists of three parts of flight dynamics; first of all, fast longitudinal motion occurs, then is followed by a little slow lateral motion, and finally logitudinal/lateral coupled motion is fully developed.