| タイトル | Theory of wing rock |
| 著者（英） | Lan, C. E.; Hsu, C.-H. |
| 著者所属（英） | Kansas Univ. |
| 発行日 | 1985-01-01 |
| 言語 | eng |
| 内容記述 | Wing rock is one type of lateral-directional instabilities at high angles of attack. To predict wing rock characteristics and to design airplanes to avoid wing rock, parameters affecting wing rock characteristics must be known. A new nonlinear aerodynamic model is developed to investigate the main aerodynamic nonlinearities causing wing rock. In the present theory, the Beecham-Titchener asymptotic method is used to derive expressions for the limit-cycle amplitude and frequency of wing rock from nonlinear flight dynamics equations. The resulting expressions are capable of explaining the existence of wing rock for all types of aircraft. Wing rock is developed by negative or weakly positive roll damping, and sustained by nonlinear aerodynamic roll damping. Good agreement between theoretical and experimental results is obtained. |
| NASA分類 | AIRCRAFT STABILITY AND CONTROL |
| レポートNO | 85A19583
AIAA PAPER 85-0199 |
| 権利 | Copyright |
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