Attachment layer reinforced grid ribbed cylindrical shell structure

A ribbed shell and adhesion layer technology, which is applied to projectiles, self-propelled bombs, and offensive equipment, can solve problems such as the decline in ultimate bearing capacity, serious decline, and poor defect resistance of the bare shell structure, achieving improved The effect of bending stiffness

Inactive Publication Date: 2016-12-07
DALIAN UNIV OF TECH
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Problems solved by technology

However, the axial pressure critical instability load obtained by theoretical calculation or numerical simulation of the ideal model for this structure is higher than the actual experimental results.

Method used

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  • Attachment layer reinforced grid ribbed cylindrical shell structure
  • Attachment layer reinforced grid ribbed cylindrical shell structure
  • Attachment layer reinforced grid ribbed cylindrical shell structure

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[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-3 As shown, the present invention is a new type of adhesion layer reinforced grid ribbed shell structure, adding a soft material adhesion layer 2 on the surface of a single rib plate 1 of the traditional grid ribbed structure, thereby improving the bending stiffness of the cross section of the rib plate. The density of the soft material adhesion layer 2 is smaller than that of the rib 1 material, and the height of the soft material adhesion layer 2 is the same as that of the rib 1 .

[0021] Wherein, the grid size, rib width, rib height, and attached soft layer 2 width of the grid ribbing 1 can be determined by analytical analysis or numerical optimization methods according to engineering indicators such as structural size, structural weight, and bearing capacity.

[0022] Wherein, the soft material of the adhesion layer refers ...

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Abstract

The invention discloses an attachment layer reinforced grid ribbed cylindrical shell structure; a soft material attachment layer is added on a rib plate surface of a ribbed structure; and a ribbed form includes but not limited to a rectangular, hexagonal or triangular form. The soft attachment layer is a soft material with lower density compared with a rib plate; and the soft layer is as high as the rib plate. As the bending resistance of the section of the rib plate is improved, the axial load limit bearing capacity of the grid ribbed cylindrical shell structure is effectively increased, or even the structure lightness is realized on this basis; and the grid ribbed form includes but not limited to a rectangular grid, a hexagonal grid and a triangular grid. The grid size in grid ribbing, the width of the rib plate, the height of the rib plate and the width of the soft attachment layer are analytically analyzed according to such engineering indexes as structural size, structural weight and bearing capacity, or are determined by a numerical value optimizing method. A machining process is simple, is convenient for modification of a traditional manufacturing process, and is suitable for large-scale volume production.

Description

technical field [0001] The invention belongs to the technical field of manufacturing main load-bearing components of missile structures, relates to the axial compressive ultimate bearing capacity and lightweight structure of a grid-ribbed cylindrical shell structure, and particularly relates to an adhesion layer-reinforced grid-ribbed cylindrical shell structure. The invention can Effectively increase the axial compressive ultimate bearing capacity of the grid-ribbed cylindrical shell structure, and even realize light weight of the structure on this basis. Background technique [0002] Ballistic missiles, especially heavy intercontinental ballistic missiles, are an important means of national defense and an important part of strategic nuclear forces. With the continuous improvement of the requirements for the effective range of missiles, the diameter of the missile body structure has increased generation by generation, and the requirements for the structure of the missile bo...

Claims

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Application Information

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IPC IPC(8): F42B15/00
CPCF42B15/00
Inventor 王博石云峰郝鹏陈友伟吴会强
Owner DALIAN UNIV OF TECH
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