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首页> 外文期刊>Journal of Aircraft >Limit-Cycle Oscillations of Swept-Back Trapezoidal Wings at Low Subsonic Flow
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Limit-Cycle Oscillations of Swept-Back Trapezoidal Wings at Low Subsonic Flow

机译:低亚音速流下后掠梯形翼的极限环振荡

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摘要

A trapezoidal cantilever plate and three-dimensional vortex lattice aerodynamic theory has been used to investigate the aeroelastic characteristics of a swept back trapezoidal wing in low subsonic flow. There are several parameters including sweep angle, TR, and aspect ratio that have considerable effect on aeroelastic behavior and characteristics of these wings. The results presented in this work are consistent with numerical results for low aspect ratio rectangular wings and experimental data for delta wings reported by other investigators (Refs. 3-9). This analysis can be used adequately for aircraft design procedures and estimation of the optimum aspect ratio, TR, and sweep angle of an aircraft wing especially at conceptual design stages.
机译:梯形悬臂板和三维涡流格子空气动力学理论已被用来研究低亚音速流中后掠梯形翼的气动弹性特征。有几个参数,包括后掠角,TR和长宽比,这些参数对这些机翼的气动弹性特性和特性有相当大的影响。这项工作中提出的结果与低长宽比矩形机翼的数值结果和其他研究者报道的三角翼的实验数据一致(参考文献3-9)。这种分析可以充分用于飞机设计程序,并可以估计飞机机翼的最佳纵横比,TR和后掠角,尤其是在概念设计阶段。

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