Protective liquid tank structure with pre-deformation defensive longitudinal wall

Abstract

The invention relates to a protective liquid tank structure with a pre-deformation defensive longitudinal wall. The protective liquid tank structure with the pre-deformation defensive longitudinal wall comprises a liquid tank front wall, an absorbing liquid and a defensive longitudinal wall; a protective liquid tank is formed between the liquid tank front wall and the defensive longitudinal wall;the absorbing liquid is loaded in the protective liquid tank; the defensive longitudinal wall adopts a plate structure with pre-deformation. According to the protective liquid tank structure with thepre-deformation defensive longitudinal wall, as the defensive longitudinal wall adopts the plate structure with pre-deformation, the force bearing process of the defensive longitudinal wall under impact load can be changed on the one hand to skip the bending deformation process and directly enter a film stretching deformation stage; and the contact area between the defensive longitudinal wall andthe liquid can be increased on the other hand so that the defensive longitudinal wall can generate larger-scale film stretching deformation to absorb energy. Therefore, stress concentration at the boundary of the defensive longitudinal wall can be reduced, the possibility that the boundary is torn and damaged is reduced, the impact kinetic energy in the liquid is absorbed on the basis of keeping the structural integrity of the defensive longitudinal wall, and the damage of the impact load is defensed.

Description

technical field [0001] The present invention relates to the technical field of ship structures, in particular to a pre-deformed anti-corrosion device for resisting the combined damage of shock waves, high-speed fragments and quasi-static pressure produced by underwater weapons such as fish and mines under the underwater contact explosion of the side of the ship. Protective tank structure for defensive longitudinal walls. Background technique [0002] When underwater weapons such as fish and mines explode on the side of the ship, the shock waves and high-speed fragments generated by the explosion pose a huge threat to the ship's hull structure and important internal compartments (such as ammunition compartments, power compartments, etc.) . In order to effectively resist the destructive effect of underwater weapon contact explosion, a multi-compartment protective structure consisting of a series of empty tanks and liquid tanks is installed on the underwater side of a large sh...

AI Technical Summary

Problems solved by technology

All of these will make the protective liquid tank bear more serious damage load, and the deformation of the defensive longitudinal wall will be more serious

The current technical solution is to set the defensive longitudinal wall as a thick plate to withstand various impact loads. This structural form not only has too large overall mass, but also increases the weight of the hull, and is prone to relatively heavy damage at the boundary connection during the bending deformation process. Large stress and strain, resulting in tear failure

This will seriously threaten the structural vitality of the ship

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