| タイトル | Aeroelastic-Acoustics Simulation of Flight Systems |
| 本文（外部サイト） | http://hdl.handle.net/2060/20090013386 |
| 著者（英） | Gupta, kajal K.; Ibrahim, A.; Choi, S. |
| 著者所属（英） | NASA Dryden Flight Research Facility |
| 発行日 | 2009-01-05 |
| 言語 | eng |
| 内容記述 | This paper describes the details of a numerical finite element (FE) based analysis procedure and a resulting code for the simulation of the acoustics phenomenon arising from aeroelastic interactions. Both CFD and structural simulations are based on FE discretization employing unstructured grids. The sound pressure level (SPL) on structural surfaces is calculated from the root mean square (RMS) of the unsteady pressure and the acoustic wave frequencies are computed from a fast Fourier transform (FFT) of the unsteady pressure distribution as a function of time. The resulting tool proves to be unique as it is designed to analyze complex practical problems, involving large scale computations, in a routine fashion. |
| NASA分類 | Acoustics |
| レポートNO | DFRC-889
DFRC-890 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/254024 |
