| 基于CFD/CSD的大展弦比机翼气动弹性研究 |
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| 引用本文： | 蔡天星,徐敏,郭敏杰,姚伟刚.基于CFD/CSD的大展弦比机翼气动弹性研究[J].强度与环境,2011,38(3):19-23. |
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| 作者姓名： | 蔡天星 徐敏 郭敏杰 姚伟刚 |
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| 作者单位： | 西北工业大学航天学院,西安,710072 |
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| 基金项目： | 国家自然基金重大研究计划(90816008); 博士点基金(20070699054) |
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| 摘 要： | 考虑气动力非定常效应和惯性载荷作用对机翼气动弹性行为的影响,采用基于Euler方程和有限元的CFD/CSD耦合方法分析了大展弦比机翼的气动弹性时域响应,实现静、动气动弹性一体化计算.计算结果显示在相同马赫数下,机翼静变形随着飞行动压增大而增大;但是随着飞行高度的增加,机翼在进入稳态之前振荡越剧烈,响应超调越大,升力损失...
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| 关 键 词： | 气动弹性 CFD/CSD 大展弦比机翼 非定常气动力 升力损失 |
Aeroelastic analysis of high-aspect ratio wing based on CFD/CSD |
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| Cai Tianxing,Xu Min,Guo Minjie,Yao Weigang.Aeroelastic analysis of high-aspect ratio wing based on CFD/CSD[J].Structure & Environment Engineering,2011,38(3):19-23. |
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| Authors: | Cai Tianxing Xu Min Guo Minjie Yao Weigang |
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| Institution: | Cai Tianxing Xu Min Guo Minjie Yao Weigang(College of Astronautics,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | The main goal of this paper is to analyze the aeroelastic response of a high-aspect-ratio wing.CFD/CSD coupling based on euler equation and finite element method is presented to calculate the aeroelastic response of the wing with the influence of unsteady aerodynamic force and inertia load.The results show that the deformation of the wing increases with the flight dynamic increasing,whereas with the flight altitude increasing,the wing vibrates strongly before convergence and the losing of lift force decreas... |
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| Keywords: | aeroelasticity CFD/CSD high-aspect ratio wing unsteady aerodynamic losing of lift force |
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