| タイトル | Effect of Random Geometric Uncertainty on the Computational Design of a 3-D Flexible Wing |
| 本文（外部サイト） | http://hdl.handle.net/2060/20030006676 |
| 著者（英） | Hou, G. J.-W.; Newman, P. A.; Gumbert, C. R. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 2002-01-01 |
| 言語 | eng |
| 内容記述 | The effect of geometric uncertainty due to statistically independent, random, normally distributed shape parameters is demonstrated in the computational design of a 3-D flexible wing. A first-order second-moment statistical approximation method is used to propagate the assumed input uncertainty through coupled Euler CFD aerodynamic / finite element structural codes for both analysis and sensitivity analysis. First-order sensitivity derivatives obtained by automatic differentiation are used in the input uncertainty propagation. These propagated uncertainties are then used to perform a robust design of a simple 3-D flexible wing at supercritical flow conditions. The effect of the random input uncertainties is shown by comparison with conventional deterministic design results. Sample results are shown for wing planform, airfoil section, and structural sizing variables. |
| NASA分類 | Computer Programming and Software |
| レポートNO | AIAA Paper 2002-2806 |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/90789 |
