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Assembling method for airfoil total composite transonic flutter model

A technology of flutter model and assembly method, which is applied in the field of assembly of airfoil full-composite transonic flutter model, can solve problems such as difficulty in ensuring accuracy, high cost, and difficulty in ensuring surface quality, so as to shorten the manufacturing cycle and ensure design performance, simulated accurate effects

Inactive Publication Date: 2016-03-30
AVIC CHENGDU AIRCRAFT DESIGN & RES INST
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Problems solved by technology

[0007] In order to solve the problems of difficulty in ensuring the accuracy, high cost and surface quality of the previous all-composite transonic flutter model in the process of assembly and bonding, an assembly method for the full-composite transonic flutter model of the airfoil was proposed.

Method used

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  • Assembling method for airfoil total composite transonic flutter model
  • Assembling method for airfoil total composite transonic flutter model
  • Assembling method for airfoil total composite transonic flutter model

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] In the first step, each component of the model is pre-assembled after being solidified and molded individually according to the design requirements, and the components are placed on the metal skin mold (2) with a single-sided composite skin (8) using the laser-assisted positioning system (1). Projection to complete the precise positioning of the assembly position of each component;

[0022] The second step, such as figure 2 As shown, after the positioning is completed, lay an adhesive film on the assembly surface of the composite component to be assembled, and then use aluminum alloy or composite connecting angle piece to fix the connection position of each component. During the whole pre-assembly process, the positioning position must be compared. After the pre-connection of each component is completed, the model skeleton (4) is formed, and the metal limit ...

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Abstract

The invention relates to an assembling method for an airfoil total composite transonic flutter model. An auxiliary laser structural piece positioning system and a simple limiting block assembly are utilized, accurate positioning assembling of composite components of the total composite model is achieved, the deformation of the model in the hot press forming process is effectively controlled, the manufacturing period is shortened, the product quality is guaranteed, and the manufacturing cost is reduced. By means of a skin metal die overall pressing technology, a skin metal die is utilized, and the surface quality of products in the forming process is effectively guaranteed. The technology problem that in the original model manufacturing process, the surface quality is hard to guarantee in the composite skin hot press tank secondary glue joint forming technology is solved.

Description

technical field [0001] The invention belongs to the field of flutter model design and manufacture in the field of aviation technology, and relates to an assembly method of an airfoil full-composite transonic flutter model. Background technique [0002] The flutter characteristics of aircraft components and the whole machine depend on factors such as their geometric shape and natural vibration characteristics. In order to accurately simulate and study the flutter characteristics of aircraft components and even the whole aircraft in wind tunnel tests, it is first necessary to design and manufacture a test model that can accurately simulate its inherent vibration characteristics. [0003] Compared with the low-speed flutter test model, the transonic flutter wind tunnel test model has the characteristics and difficulties of large load, high frequency and high strength. Therefore, in order to reduce the overweight ratio of the model, and even design and manufacture a test model t...

Claims

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Application Information

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IPC IPC(8): B29C65/54B29C33/00
CPCB29C65/544B29C33/00
Inventor 冉玉国程勇李秋彦罗辑魏洋天吴波
Owner AVIC CHENGDU AIRCRAFT DESIGN & RES INST
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