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祁武超(1982—),男,河南漯河人,教授,博士,主要研究方向为飞行器气动弹性设计、可靠性设计、轻量化设计,E-mail: qiwuchao@sau.edu.cn。 |
收稿日期: 2025-01-10
修回日期: 2025-04-11
录用日期: 2025-04-15
网络出版日期: 2025-12-04
基金资助
辽宁省教育厅面上项目(JYTMS20230253)
辽宁省教育厅面上项目(JYTMS20230224)
Influence of elastic effect on aerodynamic characteristics of Z-Shaped folding wing
Received date: 2025-01-10
Revised date: 2025-04-11
Accepted date: 2025-04-15
Online published: 2025-12-04
为准确捕捉不同折叠角下Z形折叠翼的气动特性,考虑不同翼段结构弹性效应的影响,基于准稳态环境构建了参数化气动-结构耦合模型。在ANSYS Workbench软件中采用RNG 湍流模型和Coupled算法,对折叠翼在弹性效应作用下的气动特性进行数值模拟,并与刚性机翼的特性进行对比。此外,系统探讨了弹性折叠翼在不同飞行环境中的变形规律。结果表明,在弹性效应作用下,折叠翼的升力和俯仰力矩绝对值略低于刚性机翼;且随着折叠角的增大,弹性变形对机翼整体气动性能的影响趋于平稳。当折叠角度为90°时,弹性与刚性机翼的升力和俯仰力矩仅相差0.93%和0.70%。此外,在弹性效应影响下,机翼的最大变形出现在翼尖处,且随折叠角度的增大,翼尖变形量逐渐减小。
祁武超 , 李亚冬 , 张梓浩 , 田素梅 . 弹性效应对Z形折叠翼气动特性的影响[J]. 沈阳航空航天大学学报, 2025 , 42(5) : 12 -19 . DOI: 10.3969/j.issn.2095-1248.2025.05.002
To accurately capture the aerodynamic characteristics of Z-shaped folding wing at different folding angles, while considering the influence of the structural elastic effect of different wing segments, a parametric aerodynamic-structural coupling model was constructed based on a quasi-steady state environment.Using ANSYS Workbench software with the RNG turbulence model and the Coupled algorithm,numerical simulation was conducted to analyze the aerodynamic characteristics of the folding wing under the action of elastic effect and the results were compared with those of a rigid wing. Additionally, the deformation laws of the elastic folding wing in different flight environments were systematically explored. The results show that under the influence of elastic effect, the absolute values of lift and pitching moment of the folding wing are slightly lower than those of the rigid wing. As the folding angle increases, the impact of elastic deformation on the overall aerodynamic performance of the wing stabilizes. When the folding angle is 90°, the differences in lift and pitching moment between the elastic and rigid wings are only 0.93% and 0.70% respectively. Furthermore, under the influence of elastic effect, the maximum deformation of the wing occurs at the wingtip. As the folding angle increases, the magnitude of wingtip deformation gradually decreases.
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