Attachment layer reinforced grid ribbed cylindrical shell structure

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...

AI Technical Summary

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. The various structural defects and material damage will significantly reduce the ultimate bearing capacity, and the degree of decline will become more serious as the diameter of the shell increases.

Images