Efficient Method for Aeroelastic Tailoring of Composite Wing to Minimize Gust Response

Efficient Method for Aeroelastic Tailoring of Composite Wing to Minimize Gust Response
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复合材料机翼气动弹性剪裁以最小化阵风响应的有效方法

DOI:
10.1155/2017/1592527
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发表时间:
2017-01
影响因子:
1.4
通讯作者:
Zhengjie Wang
Zhengjie Wang
中科院分区:
工程技术4区
文献类型:
--
作者:
Yu Yang;Zhengjie Wang

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层合复合材料结构的气动弹性剪裁需要相对较高的计算时间,尤其是对于动力学问题。本文提出了一种有效的气动弹性动态响应分析方法,可显着减少计算时间。在该方法中,在承受动态载荷的机翼的最大气动弹性响应和准稳态偏转之间建立了关系。基于这种关系,在大部分优化过程中,可以通过准稳态挠度分析来近似耗时的动态响应。该方法已应用于无尾飞机复合材料机翼的气动弹性剪裁,以实现最小阵风响应。结果表明,这种情况下阵风响应降低了 20%–36%。与传统的动态响应分析相比,优化过程的计算时间减少了90%,但精度降低了2~4%。
Aeroelastic tailoring of laminated composite structure demands relatively high computational time especially for dynamic problem. This paper presents an efficient method for aeroelastic dynamic response analysis with significantly reduced computational time. In this method, a relationship is established between the maximum aeroelastic response and quasi-steady deflection of a wing subject to a dynamic loading. Based on this relationship, the time consuming dynamic response can be approximated by a quasi-steady deflection analysis in a large proportion of the optimization process. This method has been applied to the aeroelastic tailoring of a composite wing of a tailless aircraft for minimum gust response. The results have shown that 20%–36% gust response reduction has been achieved for this case. The computational time of the optimization process has been reduced by 90% at the cost of accuracy reduction of 2~4% comparing with the traditional dynamic response analysis.
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