| タイトル | Flutter of asymmetrically swept wings |
| 本文（外部サイト） | http://hdl.handle.net/2060/19760014076 |
| 著者（英） | Crittenden, J. B.; Weisshaar, T. A. |
| 著者所属（英） | Virginia Polytechnic Inst. and State Univ. |
| 発行日 | 1976-03-12 |
| 言語 | eng |
| 内容記述 | Two formulations of the oblique wing flutter problem are presented; one formulation allows only simple wing bending deformations and rigid body roll as degrees of freedom, while the second formulation includes a more complex bending-torsional deformation together with the roll freedom. Flutter is found to occur in two basic modes. The first mode is associated with wing bending-aircraft roll coupling and occurs at low values of reduced frequency. The second instability mode closely resembles a classical bending-torsion wing flutter event. This latter mode occurs at much higher reduced frequencies than the first. The occurrence of the bending-roll coupling mode is shown to lead to lower flutter speeds while the bending-torsion mode is associated with higher flutter speeds. The ratio of the wing mass moment of inertia in roll to the fuselage roll moment of inertia is found to be a major factor in the determination of which of the two instabilities is critical. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 76N21164
NASA-CR-146815 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/186427 |
