Method for preventing installation curved surface of organic glass observation window of airplane from cracking

A technology of plexiglass and observation windows, which is applied to aircraft parts, ground equipment, transportation and packaging, etc., can solve the problems of weak fatigue strength and easy explosion, and achieve the effects of increased fatigue strength, easy operation, and simple reinforcement types

Inactive Publication Date: 2014-08-27
XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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  • Abstract
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Problems solved by technology

[0005] In order to solve the problems existing in the prior art, this application proposes a method for preventing cracks on the curved surface of the spherical plexiglass observation window, so as to solve the problem of weak fatigue strength in the R zone of the second navigator glass and prone to blasting

Method used

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  • Method for preventing installation curved surface of organic glass observation window of airplane from cracking
  • Method for preventing installation curved surface of organic glass observation window of airplane from cracking

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Embodiment Construction

[0014] See attached picture, figure 1 The second navigator's plexiglass viewing window structure of the provided aircraft is the best example of implementing the content of the present invention, and this plexiglass viewing window is made up of hemispherical viewing area 1 and the installation area 2 of the outer flange and the observation area 2 and the installation area 3 between the curved surface transition area 2, before the observation window is installed, the curved surface transition area 2 and the installation area 3 of the observation window must be strengthened, the processing method is inside and outside the curved surface transition area 2 and the installation area 3 The glass is strengthened with acrylic resin 5 pasted with polyester tape 4 on the surface, and the polyester tape is a textile material composed of warp and weft.

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Abstract

Disclosed is a method for preventing the installation curved surface of an organic glass observation window of an airplane from cracking. The organic glass observation window is composed of a hemispherical observation area, a flanging installation area and a curved surface transition area between the observation area and the installation area. Acrylate adhesive polyester filaments are arranged on the inner surface and the outer surface of the curved surface transition area and the inner surface and the outer surface of the installation area respectively so as to reinforce the organic glass observation window.

Description

technical field [0001] The invention relates to the technology in the field of aircraft design, in particular to a method for preventing cracks on the installation curved surface of an aircraft plexiglass observation window. Background technique [0002] The second navigator glass of a certain type of aircraft is a spherical structure with flanges, which can be specifically described as consisting of a hemispherical observation area, an installation area of ​​the outer flange, and a curved transition area between the observation area and the transition area. It is used in the outfield The main faults in the glass are defects such as silver streaks, cracks, scratches, etc. on the surface of the glass, and air blasting may occur in severe cases. [0003] Analyzing the cause of the failure, the blasting parts are all in the transition area of ​​the curved surface, indicating that the transition area of ​​the curved surface is the weak link in the structural fatigue strength of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/00
Inventor 李君强李子轩郑永罡刘秋娥韩徐方
Owner XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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