| タイトル | Theory of self-excited mechanical oscillations of helicopter rotors with hinged blades |
| 本文（外部サイト） | http://hdl.handle.net/2060/19930092339 |
| 著者（英） | Feingold, Arnold M; Coleman, Robert P |
| 著者所属（英） | National Advisory Committee for Aeronautics. Langley Aeronautical Lab. |
| 発行日 | 1958-01-01 |
| 言語 | eng |
| 内容記述 | Vibrations of rotary-wing aircraft may derive their energy from the rotation of the rotor rather than from the air forces. A theoretical analysis of these vibrations is described and methods for its application are explained in Chapter one. Chapter two reports the results of an investigation of the mechanical stability of a rotor having two vertically hinged blades mounted upon symmetrical supports, that is, of equal stiffness and mass in all horizontal directions. Chapter three presents the theory of ground vibrations of a two-blade helicopter rotor on anisotropic flexible supports. |
| レポートNO | 93R21629
NACA-TR-1351 |
| 権利 | No Copyright |
