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Integral hollow composite material firing box cover

A composite material, the overall hollow technology, applied in the direction of the launcher and other directions, can solve the problems of difficult quality stability control, many layers of woven fabrics, and a large separation area, so as to improve the combat response capability, the production process is simple, and the Actionable effect

Active Publication Date: 2014-07-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of film cover has more layers of woven fabric, the film cover is thicker, and it is cumbersome to use, and the separation area is relatively large, which is easy to form internal defects, resulting in a decline in overall performance and difficult to control quality stability.
Therefore, there are certain limitations in the actual application of this type of launching box cover

Method used

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  • Integral hollow composite material firing box cover
  • Integral hollow composite material firing box cover
  • Integral hollow composite material firing box cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, an integral hollow composite material launch box cover is mainly designed and manufactured with glass fiber cloth, integral hollow fabric and epoxy resin glue as the main materials. Specifically, the integral hollow composite launch case cover of the present invention mainly includes: 1. a frame, the frame is square, with rounded transitions around; 2. a separation area, the separation area is located between the frame and the throwing The joint of the body is the glued part of the double V-shaped chamfering area; 3. The throwing body, the throwing body forms a square with rounded transitions with the frame, and the overall hollow fabric is used as the sandwich layer.

[0026] The cross-sectional structure of the integral hollow composite launch box cover is as follows: figure 2 As shown, the overall hollow fabric (4) is located in the center of the throwing body, and the upper and lower sides are laminated with a composite material layer (t...

Embodiment 2

[0028] Such as Figure 4 As shown, an integral hollow composite launch box cover is mainly designed and manufactured with glass fiber cloth, integral hollow fabric and epoxy resin as the main materials. Specifically, the integral hollow composite launch case cover of the present invention mainly includes: 1. frame, the frame is circular; V-shaped chamfering area bonding part; 3. Throwing body, the throwing body is formed into a circle with the frame, and the whole hollow fabric is used as the sandwich layer. Its layering method, sandwich structure and separation zone structure form are the same as those in Example 1. This embodiment is equipped with the launch box cover of this shape according to the circular missile launch box. This structure has uniform force, and does not need to consider the prominent stress concentration phenomenon that occurs at the corner. Therefore, the integral hollow composite launch box cover has better performance stability.

Embodiment 3

[0030] Such as Figure 5 As shown, an integral hollow composite launch box cover is mainly designed and manufactured with glass fiber cloth, integral hollow fabric and epoxy resin as the main materials. Specifically, the integral hollow composite launch box cover of the present invention mainly includes: 1. a frame, the frame is hexagonal, with rounded transitions around; 2. a separation area, the separation area is located between the frame and the throw The connecting part of the exit body is the glued part of the double V-shaped chamfering area; 3. The throwing body, the throwing body forms a hexagonal shape with rounded corners along with the frame, and the overall hollow fabric is used as the sandwich layer. Its layering method, sandwich structure and separation zone structure form are the same as those in Example 1. This embodiment is used in a hexagonal launching box structure, and also has better sealing performance, stability and pressure bearing capacity.

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Abstract

The invention relates to an integral hollow composite material firing box cover, and belongs to the technical field of missile firing. The integral hollow composite material firing box cover comprises a framework (1) and an ejection body (3), wherein the joint of the framework (1) and the ejection body (3) is called separation region (2). The integral hollow composite material firing box cover is characterized in that the ejection body (3) is molded by curing a middle interlayer and glass fiber cloth layers on both sides through an epoxy resin adhesive serving as a substrate; a V-shaped chamfer angle is formed on both sides of the edge of the ejection body (3) respectively, thereby forming a double V-shaped chamfer region (6); the double V-shaped chamfer region (6) is glued with the edge of the framework (1) after being filled with an AB adhesive; the edge of the ejection body (3) and the edge of the framework (1) are attached with glass fiber cloth strips (5) on the inner side through the epoxy resin adhesive, and are sealed through an epoxy resin adhesive layer (7) on the outer side. The integral hollow composite material firing box cover has the advantages of simple structure, high bearing capacity, light structural weight and high stability.

Description

technical field [0001] The invention relates to an integral hollow composite material launch case cover, which belongs to the technical field of missile launch. Background technique [0002] The design of the missile launching box cover is one of the important factors affecting the rapid response ability of the missile. Therefore, when developing the missile storage launching box, the design of the box cover is very important. The box cover is mainly able to withstand a certain pressure difference, has good sealing performance, and can be opened quickly when launching a missile. In order to meet the above requirements, the cover of the missile launching box used to use a mechanical cover, an explosive bolt opening cover, etc. (see US Pat. If the mechanical opening cover needs to be opened by a hydraulic system, the mechanism is complicated, which not only increases the weight of the launch box and delays time, the opening response of the explosive cover is faster than that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41F7/00
Inventor 周光明蔡登安王新峰曹然黄翔
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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