| タイトル | Aerodynamic-structural analysis of dual bladed helicopter systems |
| 本文（外部サイト） | http://hdl.handle.net/2060/19800008801 |
| 著者（英） | Selberg, B. P.; Rokhsaz, K.; Cronin, D. L.; Dykman, J. R.; Yager, C. J. |
| 著者所属（英） | Missouri Univ. |
| 発行日 | 1980-02-01 |
| 言語 | eng |
| 内容記述 | The aerodynamic and structural feasibility of the birotor blade concept is assessed. The inviscid flow field about the dual bladed rotor was investigated to determine the aerodynamic characteristics for various dual rotor blade placement combinations with respect to blade stagger, gap, and angle of attack between the two blades. The boundary layer separation on the rotors was studied and three dimensional induced drag calculations for the dual rotor system are presented. The thrust and power requirements of the rotor system were predicted. NASTRAN, employed as the primary modeling tool, was used to obtain a model for predicting in plane bending, out of plane bending, and the torsional behavior of the birotors. Local hub loads, blade loads, and the natural frequencies for the birotor configuration are discussed. |
| NASA分類 | AIRCRAFT DESIGN, TESTING AND PERFORMANCE |
| レポートNO | 80N17061
NASA-CR-162754 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/173425 |
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