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首页> 外文期刊>Journal of aerospace engineering >Computational Study of Fluid-Structure Interaction on Flapping Wing under Passive Pitching Motion
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Computational Study of Fluid-Structure Interaction on Flapping Wing under Passive Pitching Motion

机译：被动投球运动下拍打翼流动互动的计算研究

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During the past few decades, various fluid-structure interaction (FSI) analysis approaches have been developed and applied to understand the physical processes related to a flexible flapping wing. In this paper, a dynamic shell analysis based on a corotational (CR) formulation is developed. Geometrically nonlinear dynamic shell formulation based on the CR framework is derived from Lagrange's equation of motion. This brand new shell formulation is implicitly combined with a preconditioned Navier-Stokes solution for a relevant FSI analysis. Specifically, the shell analysis is extended to a multibody dynamic approach to facilitate the passive pitching motion of a flapping wing. The present analysis is validated by a comparison with the results from either previous analyses or experiments. The effect of a passive pitching motion on a flapping wing is also investigated. Finally, it is found that the presented dynamic shell analysis can enable accurate predictions, and the relevant passive pitching motion of a spanwise flexible wing may be advantageous for generating several aerodynamic loads that are applicable for the control forces of a micro aerial vehicle.
机译：在过去的几十年中，已经开发了各种流体结构相互作用（FSI）分析方法并应用了解与柔性拍打翼有关的物理过程。在本文中，开发了基于蚀刻（CR）制剂的动态壳体分析。基于CR框架的几何非线性动态壳配方来自Lagrange的运动方程。这个全新的shell配方隐含地结合了一个预先说明的Navier-Stokes解决方案，以获得相关的FSI分析。具体地，壳体分析延伸到多体的动态方法，以促进翼展翼的被动俯仰运动。通过与先前分析或实验的结果进行验证本分析。还研究了被动倾斜运动对拍翼的影响。最后，发现所呈现的动态壳体分析可以实现精确的预测，并且翼展柔性机翼的相关被动倾斜运动可以是有利的，用于产生适用于微空气车辆的控制力的若干空气动力学载荷。

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