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Buckle type model skin

A buckle-type, model-based technology, applied in aircraft component testing, fuselage bulkheads, etc., can solve problems such as long cycle time, complex processing technology, skin disassembly, and difficult installation, achieving low design and processing difficulty and high simulation accuracy , the effect of easy installation

Pending Publication Date: 2019-11-19
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design scheme of the above-mentioned model skin has problems such as low accuracy of aerodynamic shape simulation, complex processing technology, long cycle, difficult skin disassembly and installation, and inability to realize partial or overall variable stiffness design, etc.

Method used

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  • Buckle type model skin
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Embodiment Construction

[0026] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

The invention belongs to the field of flutter model design and particularly relates to a buckle type model skin. The buckle type model skin comprises a model skeleton (1) and a variable skin (3). Themodel skeleton (1) is provided with buckle grooves (2). The inner walls of the buckle grooves (2) are provided with notches. The edge of the variable skin (3) is provided with buckles (4). The cross section of each buckle (4) is in a U shape. The buckles (4) are clamped to the corresponding buckle grooves (2) through elastic restoring force of the buckles (4) when mounted into the buckle grooves (2). The notches on the inner walls of the buckle grooves (2) can prevent the buckles (4) from coming out. The buckle type model skin provided by the invention has the advantages of being high in aerodynamic shape simulation precision, small in design and processing difficulty, short in cycle, convenient to disassemble and assemble, capable of realizing local or integral variable stiffness design and the like.

Description

technical field [0001] The application belongs to the field of flutter model design, in particular to a snap-on model skin. Background technique [0002] The flutter model wind tunnel test is an important means to predict and verify the flutter characteristics of the aircraft. The flutter model needs to simulate the aerodynamic shape, stiffness and weight distribution of the real aircraft, and it should also have the function of variable parameter test verification. [0003] The flutter model currently widely used in engineering simulates the aerodynamic shape by pasting a paper film on the three-dimensional frame as the skin of the model or using composite materials to make the model skin and bonding it to the internal skeleton and filling of the model. The design of the above-mentioned model skin has problems such as low accuracy of aerodynamic shape simulation, complex processing technology, long cycle, difficult skin disassembly and installation, and inability to realize...

Claims

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Application Information

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IPC IPC(8): B64F5/60B64C1/12
CPCB64F5/60B64C1/12
Inventor 胡家亮脱朝智张辉柏楠
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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