阅读说明：本技术 一种维持机翼动翼面与固定翼面运动间隙的方法 (Method for maintaining moving gap between movable wing surface and fixed wing surface of wing ) 是由 王焜 曾俊 赵荣 赵廷丽 刘振忠 于 2019-12-12 设计创作，主要内容包括：本发明公开一种维持机翼动翼面与固定翼面运动间隙的方法,包括以下步骤：在动翼面气动力作用下扰度最大处增设支臂；对应的,在固定翼面处增加与支臂滑动配合的滑面；本发明通过支臂与滑面滑动接触的相互作用,借助固定翼面的结构刚度抑制动翼面的扰度,同时维持动翼面与固定翼面之间的运动间隙,保证动翼面的收放顺畅；支臂与滑面接触后,通过支臂与滑面的相互作用力,将固定翼面结构富裕的强度和刚度利用起来分担动翼面承受的气动力,提高结构综合效率；同时不需要对动翼面本身的结构强度刚度进行加强改进设计,通过支臂与滑面的相互作用来抑制动翼面的扰度,可避免从结构上对动翼面进行加强改进而带来的重量增加使结构利用率降低的情况发生。(The invention discloses a method for maintaining a movement gap between a movable wing surface and a fixed wing surface of a wing, which comprises the following steps: a support arm is additionally arranged at the position with the maximum disturbance degree under the action of the aerodynamic force of the movable wing surface; correspondingly, a sliding surface in sliding fit with the support arm is additionally arranged at the fixed airfoil surface; according to the invention, through the interaction of the sliding contact of the support arm and the sliding surface, the disturbance degree of the movable wing surface is restrained by means of the structural rigidity of the fixed wing surface, and meanwhile, the movement gap between the movable wing surface and the fixed wing surface is maintained, so that the movable wing surface is ensured to be smoothly folded and unfolded; after the support arm is contacted with the sliding surface, the spare strength and rigidity of the fixed wing surface structure are utilized to share the aerodynamic force borne by the movable wing surface through the interaction force of the support arm and the sliding surface, so that the comprehensive efficiency of the structure is improved; meanwhile, the structural strength and rigidity of the movable wing surface are not required to be enhanced and improved, the disturbance degree of the movable wing surface is restrained through the interaction of the support arm and the sliding surface, and the situation that the structural utilization rate is reduced due to the increase of weight caused by the enhancement and improvement of the movable wing surface in structure can be avoided.)

1. A method for maintaining the moving gap between the moving wing surface and the fixed wing surface of the wing is characterized by comprising the following steps: a support arm (3) is additionally arranged at the position with the maximum disturbance degree under the action of the aerodynamic force of the movable airfoil surface (4); correspondingly, a sliding surface (2) which is in sliding fit with the support arm (3) is additionally arranged at the fixed airfoil surface (1); through the interaction of the support arm (3) and the sliding surface (2) in sliding contact, the deflection of the movable wing surface (4) is restrained by means of the structural rigidity of the fixed wing surface (1), and meanwhile, the movement gap between the movable wing surface (4) and the fixed wing surface (1) is maintained.

2. The method of maintaining a moving airfoil and fixed airfoil clearance gap of an airfoil as claimed in claim 1, wherein: the support arm (3) is fixedly connected to the movable wing surface (4) and moves together with the follow-up wing surface (4), and the motion profile surface of the support arm (3) is higher than the highest motion profile surface of the movable wing surface (4).

3. A method of maintaining a gap in the movement of a moving airfoil and a fixed airfoil of an airfoil as claimed in claim 2, wherein: the sliding surface (2) is fixed on the fixed airfoil surface (1) and covers a movement profile area of the support arm (3) in the movement process of the follow-up airfoil surface (4).

4. A method of maintaining a moving airfoil and a fixed airfoil movement gap according to any one of claims 1 to 3, wherein: after the movable wing surface (4) generates upward deflection under the action of aerodynamic load, the support arm (3) is in contact with the sliding surface (2) and can slide on the sliding surface.

5. The method of maintaining a moving airfoil and fixed airfoil clearance gap of an airfoil as claimed in claim 4, wherein: the contact mode between the support arm (3) and the sliding surface (2) is sliding contact or rolling contact.

Technical Field

The invention belongs to the technical field of airplane structure design and repair, and particularly relates to a method for maintaining a movement gap between a movable wing surface and a fixed wing surface of a wing.

Background

The movable wing surface is positioned in the fixed wing surface, two ends of the movable wing surface are suspended on the fixed wing surface through guide rails, under the driving of the control system, the track of the guide rails of the movable wing surface rotates, the middle part generates larger disturbance degree under the action of aerodynamic force in flight, the disturbance degree is larger than the movement clearance between the initially designed movable wing surface and the fixed wing surface, and the unsmooth retraction and release conditions such as interference, friction and the like are generated between the guide actuating wing surface and the fixed wing surface. Because of the restriction of overall layout, aerodynamic design etc, the movable wing face span is big, and the wing section height is low, and structural design need pay more weight and just can guarantee its intensity and rigidity, and structural efficiency is low.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a method for maintaining a moving gap between a movable wing surface and a fixed wing surface of a wing, by which a moving gap between the movable wing surface and the fixed wing surface can be effectively maintained during the moving process of the movable wing surface due to disturbance caused by aerodynamic action, thereby ensuring smooth retraction of the movable wing surface. The specific technical scheme is as follows:

a method for maintaining the moving gap between the moving wing surface and the fixed wing surface of the wing comprises the following steps: a support arm is additionally arranged at the position with the maximum disturbance degree under the action of the aerodynamic force of the movable wing surface; correspondingly, a sliding surface in sliding fit with the support arm is additionally arranged at the fixed airfoil surface; through the interaction of the support arm and the sliding surface in sliding contact, the deflection of the movable wing surface is restrained by means of the structural rigidity of the fixed wing surface, and meanwhile, the movement gap between the movable wing surface and the fixed wing surface is maintained.

Furthermore, the support arm is fixedly connected to the movable wing surface and moves along with the movable wing surface, and the motion profile surface of the support arm is higher than the highest motion profile surface of the movable wing surface.

Further, the sliding surface is fixed on the fixed airfoil surface and covers a movement contour area of the support arm in the process of following the movement of the movable airfoil surface.

Further, after the moving wing surface is subjected to the action of the pneumatic load to generate an upward deflection, the support arm is in contact with the sliding surface and can slide on the sliding surface.

Furthermore, the contact mode between the support arm and the sliding surface is sliding contact or rolling contact.

The invention has the beneficial effects that:

the invention can effectively maintain the movement clearance between the movable wing surface and the fixed wing surface under the disturbance caused by the aerodynamic action in the moving process of the movable wing surface, and ensure the smooth retraction of the movable wing surface; after the support arm is contacted with the sliding surface, the abundant strength and rigidity of the fixed wing surface structure are utilized to share the aerodynamic force borne by the movable wing surface (namely, the aerodynamic force is compensated by the strength and rigidity of the fixed wing surface structure) through the interaction force of the support arm and the sliding surface, so that the comprehensive utilization of the structure is realized, and the comprehensive efficiency of the structure is improved; meanwhile, the structural strength and rigidity of the movable wing surface are not required to be enhanced and improved, the disturbance degree of the movable wing surface is restrained through the interaction of the support arm and the sliding surface, and the situation that the structural utilization rate is reduced due to the increase of weight caused by the enhancement and improvement of the movable wing surface in structure can be avoided.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of the present invention (with the rotor wing in a lowered position or during deployment and deployment);

FIG. 2 is a schematic view of the rotor blade face in the stowed position

Shown in the figure: 1-fixed wing surface, 2-sliding surface, 3-supporting arm and 4-movable wing surface.

Detailed Description

The principles and features of this invention are described below in conjunction with the accompanying drawings and examples, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.