| タイトル | Aeroelastic response of metallic and composite propfan models in yawed flow |
| 著者（英） | Williams, Marc H.; Mehmed, Oral; Kaza, Krishna Rao; Narayanan, G. V. |
| 著者所属（英） | Purdue Univ.; NASA Lewis Research Center |
| 発行日 | 1988-07-01 |
| 言語 | eng |
| 内容記述 | An analytical investigation of aeroelastic response of metallic and composite propfan models in yawed flow was performed. The analytical model is based on the normal modes of a rotating blade and the three-dimensional unsteady lifting surface aerodynamic theory including blade mistuning. The calculated blade stresses or strains are compared with published wind tunnel data on two metallic and three composite propfan wind tunnel models. The comparison shows a good agreement between theory and experiment. Additional parametric results indicate that blade response is very sensitive to the blade stiffness and also to blade frequency and mode shape mistuning. From these findings, it is concluded that both frequency and mode shape mistuning should be included in aeroelastic response analysis. Furthermore, both calculated and measured strains show that combined blade frequency and mode shape mistuning has beneficial effects on response due to yawed flow. |
| NASA分類 | AIRCRAFT PROPULSION AND POWER |
| レポートNO | 89A17942
AIAA PAPER 88-3154 |
| 権利 | Copyright |
