Abstract
Aeroelastic problems are encountered at the preliminary design stage of flexible wings for large aircraft. A three-dimensional finite element model of a high-aspect-ratio wing was built, and the influence of the front and rear spar positions on the results of the aeroelastic analysis and optimization was studied to improve the wing structure desgin. The most feasible and optimal solutions were effectively obtained by aeroelastic optimization. In particular, the position parameter of the front spar has a greater influence on the aeroelastic analysis and optimization than the rear spar. In addition, some key constraints became restrictive leading to a rapid increase in the structural weight. Therefore, reasonable constraints were necessary for the oprimization of results.
| Original language | English |
|---|---|
| Pages (from-to) | 117-124 |
| Number of pages | 8 |
| Journal | Science China Technological Sciences |
| Volume | 55 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2012 |
Keywords
- aeroelasticity
- high-aspect-ratio wing
- large aircraft
- optimization design
- spar
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