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论文:2014,Vol:32,Issue(4):535-541 |
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引用本文: |
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马艳峰, 贺尔铭, 曾宪昂, 李俊杰, 唐长红. 基于流固耦合方法的大展弦比机翼非线性颤振特性分析[J]. 西北工业大学 |
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Ma Yanfeng, He Erming, Zeng Xian'ang, Li Junjie, Tang Changhong. Studying Nonlinear Flutter of High-Aspect-Ratio Wing Based on Fluid Solid Coupling[J]. Northwestern polytechnical university |
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基于流固耦合方法的大展弦比机翼非线性颤振特性分析 |
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马艳峰1,2, 贺尔铭1, 曾宪昂2, 李俊杰2, 唐长红2 |
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1. 西北工业大学 航空学院, 陕西 西安 710072; 2. 中航工业第一飞机设计研究院, 陕西 西安 710089 |
摘要: |
针对大展弦比机翼的柔性大、变形大的特点,基于非定常涡格法求解机翼的非定常气动力,考虑了大展弦比机翼的几何非线性效应,提出了计算大展弦比机翼非线性颤振分析的新方法。以某平板机翼为例:计算了机翼静气动弹性变形、振动特性和颤振特性随着攻角增大的变化规律;比较了颤振结果线性解与非线性解的差别。相关的分析结果表明:大展弦比机翼颤振分析需同时考虑几何非线性效应和气动网格变形。 |
关键词:
非线性颤振
静气动弹性
攻角
大展弦比机翼
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Studying Nonlinear Flutter of High-Aspect-Ratio Wing Based on Fluid Solid Coupling |
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Ma Yanfeng1,2, He Erming1, Zeng Xian'ang2, Li Junjie2, Tang Changhong2 |
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1. College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China; 2. The First Aircraft Insititute, Xi'an 710089, China |
Abstract: |
Large deformation and flexibility are significant for high-aspect-ratio wings. In this paper, unsteady vor-tex-lattice method is used to solve for the unsteady aerodynamic force. It considered the effect of structural geometric nonlinearity on the high-aspect-ratio wing in the structure calculation. It presents a new method for calculating the nonlinear flutter analysis of high-aspect-ratio wing. As the angle of attack increases, the characteristics of static aeroelasticity, vibration and flutter are calculated around a flat board wing. Additionally, we compare numerically the linear solution with the nonlinear one. The results and their analysis prove preliminarily that high-aspect-ratio wing flutter must consider both geometrically nonlinear and grid deformation. |
Key words:
Nonlinear flutter
static aeroelasticity
angle of attack
high-aspect-ratio wings
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收稿日期: 2013-12-08
修回日期:
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DOI: |
基金项目: 国家科技部国际合作专项(2013DFA80710)资助 |
通讯作者:
Email: |
作者简介: 马艳峰(1982-),女,西北工业大学博士研究生,主要从事飞机气动弹性研究。
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参考文献: |
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[1] Dowell E. Some Recent Advances in Nonlinear Aeroelasticity: Fluid-Structure Interaction in the 21st Century[R]. AIAA-2010-3137 [2] Van Schoor M C, Von Flotow A H. Aeroelastic Characteristics of a Highly Flexible Aircraft[J]. Journal of Aircraft, 1990, 27:901-908 [3] Patil M J. Nonlinear Aeroelastic Analysis, Flight Dynamics, and Control of a Complete Aircraft[D]. Atlanta: Georgia Institute of Technology, 1999 [4] Mayuresh J P, Dewey H H. Nonlinear Aeroelasticity and Flight Dynamics of High-Altitude Long-Endurance Aircraft[J]. Journal of Aircraft, 2001, 38: 88-94 [5] Dowell E, Edwards J, Strganac T. Nonlinear Aeroelasticity[J]. Journal of Aircraft, 2003, 40: 857-874 [6] Weihua Su, Carlos E, Cesnik S. Nonlinear Aeroelasticity of a Very Flexible Blended-Wing-Body Aircraft[J]. Journal of Aircraft, 2010, 47: 1539-1553 [7] 杨智春, 党会学, 李毅. 大展弦比机翼非线性气动弹性特性的数值模拟研究[C] ∥ 第十一届全国 空气弹性学术交流会, 昆明: 2009 Yan Zhichun, Dang Huixue, Li Yi. Research of Nonlinear Aeroelastic Characteris on High-Aspect-Ratio wing[] ∥ CARS-2009, Kunming, 2009 (in Chinese) [8] 谢长川, 杨超. 大展弦比飞机几何非线性气动弹性稳定性的线性化方法[J]. 中国科学: 技术科学, 2011, 41 (3):385-393 Xie Changchuan, Yang Chao. Linearization Method of Nonlinear Aeroelastic Stability for Complete Aircraft with High-Aspect- Ratio Wings[J]. Sci China: Tech Sci, 2011, 41 (3): 385-393 (in Chinese) [9] 崔鹏, 韩景龙. 基于 CFD /CSD 的非线性气动弹性分析方法[J]. 航空学报, 2010, 31 (3): 480-486 Cui Peng, Han Jinglong. Investigation of Nonlinear Aeroelastic Analysis Using CFD /CSD[J]. Chinese Journal of Aeronautics,2010, 31 (3): 480-486 (in Chinese) [10] Ivan W, Chad Gibbsy S, Dowell E. Aeroelastic Analysis of a Folding Wing: Comparison of Simple and Higher Fidelity Models for a Wide Range of Fold Angles[R]. AIAA-2013-1635 [11] Bret K S, Philip S Beran. Analytical Sensitivity Analysis of an Unsteady Vortex Lattice Method for Flapping Wing Optimization [R]. AIAA-2009-2614 [12] Christopher C C, Tim F, Balakumar B. GPGPU Implementation and Benchmarking of the Unsteady Vortex Lattice Method[R]. AIAA-2013-0288, 2013 |
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