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首页> 外文期刊>Aerospace science and technology >Prediction of the non-linear aeroelastic behavior of a cantilever flat plate and equivalent 2D model
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Prediction of the non-linear aeroelastic behavior of a cantilever flat plate and equivalent 2D model

机译：悬臂平板和等效2D模型的非线性空气弹性行为的预测

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摘要

Reducing structure weigh is one of the main strategies for decreasing environmental and manufacturing costs of engineering solutions. The reduction in material is normally related with a higher impact of aeroelastic solicitations. For some industrial cases it is needed to account for non-linear aerodynamics and, therefore, the whole fully coupled set of equations needs to be simulated in order to predict its behavior. One possible way of reducing the high computational cost associated with this problem is the use of an equivalent 2D model, whose derivation is not straightforward. This article presents a methodology for reducing the order from a complete three dimensional arbitrary beam to its equivalent 2D characteristic section. The behavior of both systems is analyzed and it is shown how, when the methodology is applied, the resulting 2D system is capable to predict similar results with a computational cost which is reduced by orders of magnitude. (C) 2021 Elsevier Masson SAS. All rights reserved.
机译：减少结构权重是降低工程解决方案环境和制造成本的主要策略之一。材料的减少通常与空气弹性劳动的影响更高。对于某些工业案例，需要考虑非线性空气动力学，因此，需要模拟整个完全耦合的方程集，以便预测其行为。降低与此问题相关的高计算成本的一种可能方法是使用等效的2D模型，其推导不是简单的。本文提出了一种方法，用于将订单从完整的三维任意光束缩小到其等同的2D特征部分。分析了两个系统的行为，并显示了如何在应用方法时，所得到的2D系统能够预测与计算成本相似的结果，该计算成本减少了级数。 （c）2021 Elsevier Masson SAS。版权所有。

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