带全动翼尖飞翼布局的颤振规律

王伟吉; 钱卫; 何翔; 艾新雨; 陈峥

doi:10.19527/j.cnki.2096-1642.1085

带全动翼尖飞翼布局的颤振规律

doi: 10.19527/j.cnki.2096-1642.1085

王伟吉¹,
钱卫^1,2,3, ,,
何翔¹,
艾新雨¹,
陈峥¹

1. 大连理工大学航空航天学院, 辽宁大连 116023;
2. 大连理工大学工业装备结构分析国家重点实验室, 辽宁大连 116023;
3. 大连理工大学辽宁省空天飞行器先进技术重点实验室, 辽宁大连 116023

详细信息

作者简介:
王伟吉(1995-)男,博士,主要研究方向为气动弹性、流固耦合。E-mail:weiji_wang@163.com

通讯作者:
钱卫(1972-)男,教授,主要研究方向为结构动力学、颤振、非定常气动力、静气动弹性各方面的仿真、地面试验、风洞试验、飞行试验等。E-mail:qianwei@dlut.edu.cn

中图分类号: V215.3+4
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出版历程
- 收稿日期: 2023-09-05
- 修回日期: 2023-10-04
- 网络出版日期: 2023-11-06

Flutter Regularity of Flying Wing Configuration with All-Moving Wing Tip

WANG Wei-ji¹,
QIAN Wei^{1,2,3
, ,},
HE Xiang¹,
AI Xin-yu¹,
CHEN Zheng¹

1. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116023, China;
2. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China;
3. Advanced Technology for Aerospace Vehicles of Liaoning Province, Dalian University of Technology, Dalian 116023, China

摘要

摘要: 现代战斗机的任务性能要求满足高速、高机动、隐身、轻量化等多目标,无尾飞翼布局飞机的气动效率高,具有良好的机动性、低可探测性和飞发一体化优势。该布局采用翼身融合、多操纵面和全动翼尖的结构设计。全动翼尖机翼新型结构使得其气动弹性问题突出,其中全动翼尖结构和各个操纵面之间的耦合作用,使得颤振问题尤为突出。采用线性颤振法和模态跟踪技术研究全动翼尖机翼的颤振问题,通过研究发现,无尾飞翼布局飞机结构的颤振耦合类型主要有3种:机翼对称一弯和全动翼尖对称旋转耦合型(对称耦合型)、机翼反对称一弯和全动翼尖反对称旋转耦合型(反对称耦合型)及机身模态参与的颤振型。通过研究发现,反对称耦合型的颤振速度要低于对称耦合型,而在机身模态参与的颤振结果中,机身和机翼的耦合颤振速度高于前两者,机身和全动翼尖的耦合颤振速度低于前两者。影响对称耦合型颤振的主要结构因素有机翼弯曲刚度和全动翼尖旋转刚度,而影响反对称耦合型颤振的主要有机翼弯曲刚度、机身转动惯量和全动翼尖旋转刚度。总之,全动翼尖结构是造成无尾飞翼布局飞机容易发生颤振的内在因素。
- 飞翼布局 /
- 全动翼尖 /
- 颤振分析 /
- 线性颤振方法 /
- 模态跟踪法 /
- 颤振机理
Abstract: The performance requirements of modern fighters meet multiple targets such as high speed, high mobility, stealth, lightweight and so on. The aircraft with a tailless flying wing configuration has the advantages of high aerodynamic efficiency, good mobility, low detectability, and flying integration. Such configuration adopts a structural design with wing and body fusion, multi-control surface and all-moving wing tip. The innovative structure of the wing tip highlights its aero- elasticity problem, in which the coupling effect between the structure of wing tip and the control surface makes the flutter behavior particularly prominent. This paper adopted the linear flutter method and the mode tracking method to study the flutter problem of all-moving wing tip. According to the study, the flutter coupling has three types for the aircraft with a tailless flying wing configuration:coupling between the first symmetrical bending of wing and the symmetric rotation of all-moving wing tip (symmetrical couple), coupling between the first anti-symmetrical bending of wing and the anti-symmetric rotation of all-moving wing tip (antisymmetric couple) and the fuselage mode in flutter. It is found that the flutter speed of the anti-symmetric coupling type is lower than that of the symmetric coupling type. From the flutter result, the coupling flutter speed of the fuselage and wing is higher than that of the former two, and the coupling speed of the fuselage and the all-moving wing tip is lower than that of the former two. The main structural factors affecting the symmetric coupled flutter are wing bending stiffness and rotational stiffness of the all-moving tip, while the main structural factors affecting the antisymmetric coupled flutter are wing bending stiffness, fuselage rotational inertia and rotational stiffness of the all-moving tip. The all-moving wing tip structure is the internal factor that makes the tailless flying wing prone to flutter.
- flying wing /
- all-moving wing tip /
- flutter analysis /
- linear flutter method /
- mode tracking method /
- flutter mechanism

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参考文献(16)

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带全动翼尖飞翼布局的颤振规律

doi: 10.19527/j.cnki.2096-1642.1085

作者简介:
王伟吉(1995-)男,博士,主要研究方向为气动弹性、流固耦合。E-mail:weiji_wang@163.com

通讯作者:
钱卫(1972-)男,教授,主要研究方向为结构动力学、颤振、非定常气动力、静气动弹性各方面的仿真、地面试验、风洞试验、飞行试验等。E-mail:qianwei@dlut.edu.cn

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Flutter Regularity of Flying Wing Configuration with All-Moving Wing Tip

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带全动翼尖飞翼布局的颤振规律

doi: 10.19527/j.cnki.2096-1642.1085

作者简介: 王伟吉(1995-)男,博士,主要研究方向为气动弹性、流固耦合。E-mail:weiji_wang@163.com

通讯作者: 钱卫(1972-)男,教授,主要研究方向为结构动力学、颤振、非定常气动力、静气动弹性各方面的仿真、地面试验、风洞试验、飞行试验等。E-mail:qianwei@dlut.edu.cn

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Flutter Regularity of Flying Wing Configuration with All-Moving Wing Tip

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作者简介:
王伟吉(1995-)男,博士,主要研究方向为气动弹性、流固耦合。E-mail:weiji_wang@163.com

通讯作者:
钱卫(1972-)男,教授,主要研究方向为结构动力学、颤振、非定常气动力、静气动弹性各方面的仿真、地面试验、风洞试验、飞行试验等。E-mail:qianwei@dlut.edu.cn