Vein type multistage curved rib reinforced high-rigidity special-shaped storage tank end socket structure

Abstract

The invention discloses a vein type multistage curved rib reinforced high-rigidity special-shaped storage tank end socket structure. The outline shape of the vein type multistage curved rib reinforcedhigh-rigidity special-shaped storage tank end socket structure is a non-regular-concave polygon such as a quasi-triangular polygon or a quasi-quadrilateral polygon. Primary middle vein curved ribs are perpendicular to an end socket wall plate, diverge and extend outwards along a straight line by taking the center of the end socket wall plate 1 as a source, and extend to the corner points of a storage tank end socket. Primary side vein ribs are straight ribs or curved ribs perpendicular to the end socket wall plate and extend out of the two sides of each primary middle vein rib. Secondary lattice ribs are uniformly distributed on the surface of the end socket wall plate in a plurality of long and narrow areas separated by the primary side vein ribs, and are intersected with the primary middle vein ribs, the primary side vein ribs, a sealing boss and sealing bolt tables. The sealing boss is used for positioning and butting the storage tank end socket and a storage tank body. Under the condition that the structural mass is not increased or even the weight is reduced, the rigidity performance of the end socket structure is enhanced, the deformation and the stress level of the end socket structure under the working load are reduced, and therefore the sealing performance and the bearing capacity of the structure are effectively improved.

Description

technical field [0001] The invention belongs to a head structure of an integrated special-shaped storage tank for aerospace vehicles, and relates to a high-rigidity special-shaped storage tank head structure reinforced by a leaf-vein-type multi-stage curved rib. The invention can enhance the structural rigidity performance of the head under the condition that the structural quality is not increased or even the weight is reduced, and the deformation amount and stress level under the working load can be slowed down, thereby effectively improving the structural sealing performance and bearing capacity. Background technique [0002] For aerospace vehicles, due to the integrated design feature of structure and function, the fuel tank not only needs to store fuel, but also has the requirement of dimension-shaped design of aerodynamic shape, so its structural form presents an irregular special-shaped fusion tank At the same time, the tank head also appears as an irregularly shaped ...

AI Technical Summary

Problems solved by technology

However, this design method is unfavorable to the lightweight design of the structure on the one hand, and on the other hand, the improvement efficiency is low, and the effect of improving the structural performance is not obvious

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