| タイトル | A fundamental aeroservoelastic study combining unsteady CFD with adaptive control |
| 著者（英） | Guillot, Damien M.; Friedmann, P. |
| 著者所属（英） | California Univ. |
| 発行日 | 1994-04-22 |
| 言語 | eng |
| 内容記述 | This paper describes a two-dimensional aeroservoelastic study in the time domain. The model, which is based on exact inviscid aerodynamics, correctly represents the large amplitude motions and the associated strong shock dynamics in the transonic regime. The aeroservoelastic system consists of a two degree-of-freedom airfoil with a trailing edge control surface. Using first-order actuator dynamics, a digital adaptive controller is applied to provide active flutter suppression. Comparisons between time-responses of the open-loop and closed loop systems show the ability of the trailing edge control surface to suppress non-linear transonic aeroelastic phenomena. A relation between actuator dynamics, sampling time-step and limits on the flap deflection angle to guarantee the effectiveness of the adaptive controller was demonstrated by the results generated. |
| NASA分類 | Cybernetics |
| レポートNO | 96N72357
NASA-CR-201434
NAS 1.26:201434
AIAA Paper 94-1721 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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