| 大展弦比复合材料机翼结构建模与气动弹性分析 |
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| 引用本文： | 赵永辉,胡海岩.大展弦比复合材料机翼结构建模与气动弹性分析[J].中国航空学报,2005,18(1):25-30. |
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| 作者姓名： | 赵永辉 胡海岩 |
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| 作者单位： | Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China |
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| 基金项目： | Foundation item： National High-Tech Projects of China （863-705-2.3） |
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| 摘 要： | 建立了具有任意截面形状的大展弦比复合材料翼的结构模型。研究了机翼的两种铺设方式：即周向均匀刚度配置（CUS）和周向反对称刚度配置（CAS）。对于复合箱梁情形，目前的结构建模方法正确性通过ANSYS有限单元软件得到了验证。为了研究具有NACA0012翼型的大展弦比复合材料机翼的气动弹性问题，利用线性ONERA空气动力模型来描述小攻角情形下的非定常空气动力载荷。最后，利用U—g法预示了机翼在各种复合层铺设角度下的颤振速度。
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| 关 键 词： | 结构建模 气动弹性分析 大展弦比复合材料机翼 |
| 文章编号： | 1000-9361（2005）01-0025-06 |
| 收稿时间： | 2003-09-05 |
| 修稿时间： | 2004-09-27 |
Structural Modeling and Aeroelastic Analysis of High-Aspect-Ratio Composite Wings |
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| Zhao YongHui;Hu HaiYan.Structural Modeling and Aeroelastic Analysis of High-Aspect-Ratio Composite Wings[J].Chinese Journal of Aeronautics,2005,18(1):25-30. |
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| Authors: | Zhao YongHui;Hu HaiYan |
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| Abstract: | A unified structural model for high-aspect-ratio composite wing with arbitrary cross-section is developed. Two types of lay-ups of the composite wing, namely, circumferentially uniform stiffness (CUS) configuration and circumferentially asymmetric stiffness (CAS) configuration, are investigated. The present structural modeling method is validated through ANSYS FEM software for the case of a composite box beam. Then, the case of a single-cell composite wing with NACA0012 airfoil shape is considered. To investigate the aeroelastic problem of high-aspect-ratio composite wings, the linear ONERA aerodynamic model is used to model the unsteady aerodynamic loads under the case of small angle of attack. Finally, flutter speeds of the high-aspect-ratio wing with various composite ply angles are determined by using U-g method. |
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| Keywords: | structural modeling aeroelastic analysis high-aspect-ratio composite wing |
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