| タイトル | Blade frequency program for nonuniform helicopter rotors, with automated frequency search |
| 本文（外部サイト） | http://hdl.handle.net/2060/19720020349 |
| 著者（英） | Sadler, S. G. |
| 著者所属（英） | Rochester Applied Science Associates, Inc. |
| 発行日 | 1972-01-01 |
| 言語 | eng |
| 内容記述 | A computer program for determining the natural frequencies and normal modes of a lumped parameter model of a rotating, twisted beam, with nonuniform mass and elastic properties was developed. The program is used to solve the conditions existing in a helicopter rotor where the outboard end of the rotor has zero forces and moments. Three frequency search methods have been implemented. Including an automatic search technique, which allows the program to find up to the fifteen lowest natural frequencies without the necessity for input estimates of these frequencies. |
| NASA分類 | AIRCRAFT |
| レポートNO | 72N27999
RASA-72-01
NASA-CR-112071 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/203031 |
