RU2481229C1 - Method of increasing submarine survivorship - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to method of damage control in case of hull breach. Method of increasing survivorship of submarine vessel comprising hull to house service equipment including engine unit with propulsor. Note here said hull comprises structural inner shell and outer skin to make inner space communicated with outer medium and divided by bulkheads into compartments. Note here that said method consists in arranging the device for recovery of the hull serviceability. Device to recovery of submarine null functionality is arranged in interhull compartments and composed of one, preferably, two-three layers of elastic strap with one edge locked at interhull space structural element to allow displacement of strap free edge in normal to hull surface and, at least, along said surface in one direction.

EFFECT: simplified process, faster recovery.

3 cl, 6 dwg

Description

The invention relates to the field of shipbuilding and can be used to ensure buoyancy, increase invulnerability, survivability of an underwater object in the event of a hole in the hull of an underwater vessel.

The disadvantages of the known hulls of submarines include a decrease in buoyancy, up to the loss of survivability of the vessel, in the event of a breakdown due to the complexity of its elimination: significant external pressure at large depths of immersion; limited access to the place of the hole, including emergency and rescue equipment; availability of the necessary preparation time; the need for direct participation of staff.

A device for sealing a hole in the housing, containing reservoirs with foaming material, a piping system for supplying liquid components from the reservoirs into the internal cavity of an inflatable elastic balloon, which is introduced into the hole. The liquid components are separately fed into the internal cavity of the container, mixed to form a foam, the balloon inflates and closes the hole (US Pat. No. 6,467,421, IPC B63B 3/13, B63B 3/16, B63B 3/20, publ. 10/22/2002).

The disadvantages of this device and its method of application of the method is the significant complexity of its application, the need for tanks and pipelines for storage and supply of liquid components, participation in the sealing of holes for maintenance personnel.

A known method for temporarily sealing holes in a ship’s hull and a device for its implementation, comprising one or more inflatable elements mounted on one end of a hollow mast. The mast is introduced into the hole, the gaseous product is fed through the mast into the inflatable elements, which form at least one rigid circular torus when inflated. The outer diameter of the largest filled torus exceeds the diameter of the hole. When inflating, the torus pulls a patch of elastic material that seals the hole (England patent No. 2374047, IPC B63B 3/13, B63B 3/16, B63B, publ. 09.10.2002).

The disadvantages of this method is the significant complexity of its application, the need to use tanks, pipelines and masts for storing and supplying a gaseous product, participation in the sealing of a hole in the staff.

There is a method of increasing the resistance of an underwater vehicle to shock wave loads, mainly a submarine, the hull of which is made of at least two shells with connections between them, while the outer shell is made in communication with the external aqueous medium, and the space between the shells is filled with flexible shells, the inner cavity which is under the influence of gas under pressure (RF patent No. 2132285, IPC B63B 3/13, B63B 3/16, B63B 3/20 - prototype).

Protection is provided as follows.

When a shock wave acts on the surface of a submarine, the wave is partially perceived by the outer shell and, together with the liquid, acts on the flexible shells between the shell shells. Flexible shells are deformed and absorb most of the energy of the shock wave.

The outer and inner shells of the body form a three-dimensional power structure together with force bonds, and the outer shell helps maintain the shape of the inner shell, and the load is shifted in time, and the backward wave factor will act, which will create internal pressure on the outer shell of the shell, which will reduce the total load, and the bonds will experience tension.

The main disadvantages of this technical solution is the need to create and change the pressure between the shells in accordance with the depth, to have a significant distance between the shell shells to compensate for the pressure change and the sufficient thickness of the air layer to compensate for the shock load.

The objective of the proposed invention is to remedy these shortcomings and create a way to increase the survivability of an underwater vessel, the use of which will ensure in the underwater position the restoration of hull functionality when breaking through in the shortest possible time and without the participation of maintenance personnel.

The solution of this problem is achieved by the fact that in the proposed method of increasing the survivability of a submarine, the hull of which includes a power inner shell, an outer skin, forming an interframe communicating with the external environment and separated by structural elements into compartments, according to the invention, a device for restoring the functionality of the hull of the submarine, which is performed in the form of one, preferably two or three layers of sheet lining of elastic material, for fixed by one edge on the structural elements of the interstitial space with the possibility of moving the loose part of the layer / s of the lining normal to the surface of the bearing body and at least in one, preferably in two directions along the surface of the power shell of the bearing case.

In an application of the method in an overlay made of two or more layers, adjacent layers are overlapped, overlapping each other, and fixed to opposite edges to opposite elements of the inter-compartment compartments.

In an application of the method, the overlay layer closest to the power shell is made of a sheet whose size in the direction perpendicular to the fixed edge is larger than the size of the compartment in this direction, while the opposite edge of the sheet is interacting with the structural element of the inter-compartment compartment to form a deflection of the sheet and pressing sheets of other layers of the lining to the outer skin.

The technical result achieved by the claimed invention is the creation of a method of increasing the survivability of an underwater vessel, the use of which will ensure in the underwater position the restoration of hull functionality when breaking through in the shortest possible time and without the participation of maintenance personnel.

The technical result is achieved due to the fact that in the hull of the submarine vessel containing the power shell, the outer skin, forming the hull, communicating with the external environment and divided into compartments, preferably of rectangular shape, structural elements, place a pad of elastic material, preferably consisting of two or more layers overlapped each other, installed in the compartments of the inter-space. In this case, one edge of the sheets is fixed on structural elements, and opposite edges are fixed on adjacent layers. Under the influence of the pressure drop, the non-fixed part of the sheet moves to the surface of the power shell, while simultaneously moving along its surface. Thus, the hole of the hole in the patch is displaced relative to the hole in the power shell. The overlay covers the hole in the power shell and due to the elasticity of the overlay material, the hole is sealed.

The invention is illustrated by drawings, where figure 1 shows a structural diagram of the installation of the sheet lining of a single layer of elastic material in the housing; figure 2 shows a structural diagram of the installation of the sheet lining of two layers of elastic material in the housing; figure 3 shows the position of the structural elements at the time of occurrence of the holes when installing the sheet lining of one layer of elastic material in the housing; figure 4 shows the position of the structural elements at the time of occurrence of the holes when installing the sheet lining of two layers of elastic material in the housing; figure 5 shows the position of the structural elements after sealing the holes when installing the sheet overlay of one layer of elastic material in the housing, figure 6 shows the position of the structural elements after sealing the holes when installing the sheet overlay of two layers of elastic material in the housing.

The proposed method can be implemented in the hull of a submarine containing a power shell 1, an outer skin 2, forming an interstitial space 3, communicating with the external environment and divided into compartments, preferably of rectangular shape, by structural elements 4. Inside the interstratal space 3 an overlay 5 of elastic material, consisting of one, preferably of two or more layers 6 of the specified material, overlapped each other. One edge of the layers 6 is fixed on the structural elements 4, and opposite edges are fixed on adjacent layers.

The proposed method for increasing the survivability of a submarine is implemented as follows.

When there is a hole (not arbitrarily marked) in the power shell 1 through the hole formed, a pressure drop occurs in the volume between the sheets 5 and the power shell 1. Under the influence of the pressure drop, the non-fixed part of the layer 6 of the lining 5 moves to the surface of the power shell 1, while moving along it surface.

Thus, the hole of the hole in the patch 5 is displaced relative to the hole in the power shell 1. The patch overlaps the hole in the power shell 1 and due to the elasticity of the material of the patch 5, the seal is sealed.

Using the proposed technical solution will allow you to create a way to increase the survivability of the submarine, providing sealing in the underwater position when it is broken through in the shortest possible time, in a wide range of immersion depths, without the participation of maintenance personnel.

Claims (3)

1. A method of increasing the survivability of a submarine containing a hull in which technical equipment is located that ensures the functioning and survivability of a submarine, and including a propulsion system with a propulsion device, the hull comprising a power inner shell, an outer skin forming interbody space communicating with the external environment and divided by structural elements into compartments, characterized in that a device for restoring functionality is located in the compartments of the housing the hull of a submarine, which is made in the form of one, preferably two to three, layers of a sheet lining of elastic material fixed at one edge on the structural elements of the hull with the possibility of moving the loose part of the layer / s of the lining along the normal to the surface of the bearing hull and, at least in one, preferably in two, directions along the surface of the power shell of the bearing housing. 2. The method according to claim 1, characterized in that in the overlay made of two or more layers, adjacent layers are overlapped, overlapping each other, and fixed to opposite edges to opposite elements of the inter-compartment. 3. The method according to claim 1 or 2, characterized in that the lining layer closest to the power shell is made of a sheet whose size in the direction perpendicular to the fixed edge is larger than the compartment size in this direction, while the opposite edge of the sheet is interacting with an element of the design of the compartment housing with the formation of deflection of the sheet and pressing the sheets of other layers of the lining to the outer skin.

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