摘要
新型设计了一种可实现机翼整体弯度可变的4段式机翼结构,整个机翼分为机翼前缘段、机翼后缘段、机翼中部段及机翼中后部段。机翼结构段之间通过一种新型双肋片结构相连,这种双肋片结构使机翼结构段之间的力是通过翼肋的接触面传递,不仅避免了机翼变形机构的铰链间隙对变形的影响,减少了结构的应力集中,也实现了在满足机翼结构强度要求下减轻了结构重量,降低了机构的复杂性。此外,采用计算流体力学的方法,数值模拟了变弯度翼型的空气动力学性能。新型设计的变弯度机翼方案,是现阶段变弯度机翼在技术上不成熟的基础上,而提出的一种易于利用现有成熟技术实现工程应用的可行性方案。
In this paper,an innovation design of a 4-section wing structure can change overall camber of the wing,which is named the leading edge of the wing,the trailing edge of the wing,mid-wing section and the mid-aft wing section. The wing sections are connected by a new double rib sheet structure that transfers the forces between the wing sections through the contact surfaces of the ribs,which not only avoids the hinge clearance of the wing deforming mechanism. The invention not only avoids the influence of the hinge clearance of the wing deformation mechanism on the deformation,reduces the stress concentration of the structure,but also reduces the structure weight and the complexity of the mechanism while meeting the requirements of the wing structure strength. In addition,the computational fluid dynamics method is used to numerically simulate the aerodynamic performance of variable camber airfoils. The variable camber wing scheme designed in this paper is a feasible scheme that is easy to utilize the existing mature technology to realize the engineering application based on the technically immature wings of the variable camber wing at the present stage.
作者
赵安民
刘德山
苏扬
邹辉
ZHAO An-min;LIU De-shan;SU Yang;ZOU Hui(College of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China;Lingyi Feihang（Tianjin）Technology Co.,Ltd,Tianjin,300450)
出处
《航空计算技术》
2018年第3期111-113,121,共4页
Aeronautical Computing Technique
基金
北京航空航天大学大学生创新创业项目资助(IECAUC2015100)
关键词
整体机翼可变
双肋片结构
流动特性
CFD
overall variable camber wing
double rib structure
flow characteristic
CFD
