This work introduces an aeroelastic optimization framework with a coupled three-dimensional panel method and Timoshenko beam finite element model. The method allows for optimization of both the exterior surface of the wing and interior structural properties. We investigate the effects of curved wall spars on the aeroelastic performance of converged designs, which have been shown to provide an improved performance due to the ability to create tradeoffs between bending and torsional stiffnesses. Studies also highlight the importance of calculating aerodynamic loads in the deformed configuration and solving the coupled aeroelastic problem to convergence.

中文翻译：

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三维机翼耦合梁模型对飞机机翼的气动弹性优化

这项工作介绍了一种气动弹性优化框架，该框架具有耦合的三维面板方法和Timoshenko梁有限元模型。该方法允许优化机翼的外表面和内部结构特性。我们研究了弧形壁梁对会聚设计的空气弹性性能的影响，由于能够在弯曲刚度和扭转刚度之间做出权衡，因此已显示该性能可提供改善的性能。研究还强调了计算变形结构中的空气动力载荷并解决耦合的空气弹性问题以收敛的重要性。