Abstract
Composite wing static aeroelasticity was analyzed through a loosely coupled method and the effects on composite wing characteristics under different flight attitudes were presented. Structural analysis and aerodynamic analysis were carried out through finite element method (FEM) software NASTRAN and computational fluid dynamics (CFD) software FLUENT, respectively. Correlative data transfer and mesh regenerate procedure were applied to couple the results of computational structure dynamics (CSD) and CFD. After static aeroelasticity analysis under different flight attitudes, it can be seen that lift increases with the increase of flight speed and the incremental value enlarges gradually in both rigid and elastic wings. Lift presents a linear increment relationship with the increase of attack angle when the flight speed is 0.4Ma or 0.6Ma, but nonlinear increment in elastic wing when flight speed is 0.8Ma. On the effect of aeroelasticity, the maximum of deformation increases with the increase of flight speed and attack angle, and the incremental value decreases with the increase of flight speed while uniform with different attack angles. The results provide a reference for engineering applications.
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Foundation item: Project(50905142) supported by the National Natural Science Foundation of China; Project(2009JQ1006) supported by the Natural Science Foundation of Shaanxi Province, China
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Huo, Sh., Yuan, Z., Wang, Fs. et al. Effects of static aeroelasticity on composite wing characteristics under different flight attitudes. J. Cent. South Univ. 20, 312–317 (2013). https://doi.org/10.1007/s11771-013-1489-8
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DOI: https://doi.org/10.1007/s11771-013-1489-8