| タイトル | Comparison of equivalent plate and finite element analysis of a realistic aircraft structural configuration |
| 著者（英） | Wrenn, Gregory A.; Giles, Gary L.; Kao, Pi-Jen |
| 著者所属（英） | NASA Langley Research Center; Analytical Sciences Corp.; Lockheed Engineering and Sciences Co. |
| 発行日 | 1990-09-01 |
| 言語 | eng |
| 内容記述 | This paper presents a comparison study to assess how well a realistic aircraft structure can be represented with an equivalent plate model. A wing box and full wing structure of a high-speed civil transport aircraft configuration are analyzed. Static and vibration results from the equivalent plate analysis are compared with results from a finite element model. The results from these comparisons show that, for the simpler wing box models, the static displacements and first vibration frequency agree to within 1.5 percent. The full wing models only agree to within 10 percent, for both models, the higher frequencies vary by as much as 26 percent. These differences are due to inadequate refinement of the equivalent plate model. |
| NASA分類 | AIRCRAFT DESIGN, TESTING AND PERFORMANCE |
| レポートNO | 90A48877
AIAA PAPER 90-3293 |
| 権利 | Copyright |
