Warship surface equipment base and design method thereof

Abstract

The invention provides a ship surface equipment base and a design method thereof. According to the ship surface equipment base, a base body comprises a panel, a web plate and a toggle plate, the web plate and the toggle plate are located below the panel and connected with the panel, the toggle plate is located in the web plate, and when the base body is in a floor type, the included angle formed by the web plate and a ship body ranges from 95 degrees to 99 degrees; when the base body is in a wall-mounted type, the included angle formed by the side surface and the bottom surface of the panel is 95-99 degrees; when the base body is in a cantilever type, the included angle formed by the panel and the toggle plate deviating from the side of the ship body is 80-85 degrees, and the included angle formed by the web plates on the two sides of the panel and the horizontal plane is 95-99 degrees. According to the ship surface equipment base provided by the invention, the shape RCS of a typical small base on a ship surface is reduced and optimized, and based on the optimized shape of the ship surface base, the RCS value of a large number of small reflection sources, namely the ship surface small equipment mounting base, can be effectively reduced, and the improvement of the radar wave stealth capability of the whole ship is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of ship RCS design, and in particular to a ship deck equipment base and a design method thereof. Background Art

[0002] As a common structure on ships, the base is a special structure designed to firmly install equipment on the ship structure. At present, the research on ship base design is mostly focused on high-strength design, high vibration impedance design and high impact resistance design, while the research on the stealth design of the base is relatively small. In view of the special deck environment where the deck base is located, its design concept is different from that of the traditional base. The deck equipment base has special requirements for the stealth performance, versatility, environmental adaptability and maintainability of the base.

[0003] At present, the bases of large-scale ship deck equipment have been designed to be stealthy from radar waves, but in order to maintain structural strength and facilitate construction, the bases of small-scale ship deck equipment are mostly designed to be vertical, ignoring the impact of RCS to a certain extent. At the same time, in order to facilitate the maintenance and installation of equipment, some ship deck bases have large operating holes in their belly plates, forming a cavity structure, which affects the stealth performance of the ship.

[0004] As the navy's requirements for ship radar wave stealth performance increase, the installation bases of small ship deck equipment are important small reflection sources, and their number is large. Their impact on the overall radar wave stealth of the ship is becoming more and more prominent. Therefore, it is very necessary to consider the impact of RCS and its reduction in the design process of small ship deck bases. Summary of the invention

[0005] The main purpose of the present invention is to provide a ship deck equipment base and a design method thereof, aiming to improve its radar wave stealth capability.

[0006] To achieve the above-mentioned purpose, the present invention provides a deck equipment base, the base body includes a panel, a web and a bracket located below the panel and connected thereto, the bracket is located inside the web, wherein: When the base body is a floor-standing type, the angle formed by the web and the hull is 95°~99°; When the base body is wall-mounted, the angle formed by the side and bottom of the panel is 95°~99°; When the base body is cantilevered, the angle between the panel and the bracket on the side away from the hull is 80°~85°, and the angle between the web plates on both sides of the panel and the horizontal plane is 95°~99°.

[0007] Preferably, when the base body is wall-mounted, the side of the hull used for connecting with one side of the web is a hull side plate, and the panel is arranged opposite to the hull side plate, and the panel is arranged parallel to the hull side plate.

[0008] Preferably, the angle formed by the outer side of the web and the horizontal plane is 95°~99°.

[0009] Preferably, when the base body is floor-standing, the distance between the connection between the web and the panel and the edge of the panel is 5 mm to 10 mm.

[0010] Preferably, the area of ​​the panel is smaller than the projected area of ​​the outer contour of the device above the panel.

[0011] Preferably, when a cavity is provided on the base body, the opening of the cavity faces the inside of the base body or the midship side.

[0012] Preferably, when the base body is a floor-standing type, the web forms a pyramidal polyhedron structure.

[0013] Preferably, the exterior of the base body is coated with a wave absorbing material.

[0014] Preferably, when a water hole or a hand hole is provided on the web, the hand hole or the hand hole is opened on the midship side.

[0015] The present invention further proposes a design method for the above-mentioned ship deck equipment base, comprising the following steps: The bracket is set inside the web to form an inward-retracted structure, and the exposed part of the base body avoids sharp angles, and the panel of the base body does not exceed the outer contour of the equipment; According to the structural type of the foundation body, the connection structure between the face plate, web plate and bracket of the foundation body is determined; When the base body is a floor-standing type, the angle formed by the web and the hull is 95°~99°; When the base body is wall-mounted, the angle formed by the side and bottom of the panel is 95°~99°; When the base body is cantilevered, the angle formed by the panel and the web on the side away from the hull is 80°~85°, and the angle formed by the webs on both sides of the panel and the horizontal plane is 95°~99°.

[0016] The ship deck equipment base proposed in the present invention can effectively reduce the RCS value of a large number of small reflection sources such as the ship deck small equipment installation bases by optimizing the RCS reduction of the typical small bases on the ship deck based on the optimized ship deck base appearance, thereby helping to improve the overall radar wave stealth capability of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1a It is a schematic diagram of the main structure of a floor-standing deck equipment base in the prior art; Figure 1b for Figure 1a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 1c It is a schematic diagram of the main structure of the first embodiment of the ship deck equipment base of the present invention; Figure 1d It is a schematic diagram of the top view of the structure of the first embodiment of the ship deck equipment base of the present invention; Figure 2a It is a schematic diagram of the main structure of another floor-standing ship deck equipment base in the prior art; Figure 2b for Figure 2a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 2c It is a schematic diagram of the main structure of the second embodiment of the ship deck equipment base of the present invention; Figure 3a It is a schematic diagram of the main structure of another ground-type ship deck equipment base in the prior art; Figure 3b for Figure 3a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 3c It is a schematic diagram of the main structure of the third embodiment of the ship deck equipment base of the present invention; Figure 3d It is a top view of the structure of the third embodiment of the ship deck equipment base of the present invention; Figure 4a It is a schematic diagram of the main structure of another ground-type deck equipment base in the prior art; Figure 4b for Figure 4a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 4c It is a schematic diagram of the main structure of the fourth embodiment of the ship deck equipment base of the present invention; Figure 4d It is a top view structural schematic diagram of a fourth embodiment of a ship deck equipment base of the present invention; Figure 5a It is a schematic diagram of the main structure of a wall-mounted deck equipment base in the prior art; Figure 5b for Figure 5a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 5c It is a schematic diagram of the main structure of the fifth embodiment of the ship deck equipment base of the present invention; Figure 5d It is a side structural schematic diagram of a fifth embodiment of the ship deck equipment base of the present invention; Figure 6a It is a schematic diagram of the main structure of another wall-mounted deck equipment base in the prior art; Figure 6b for Figure 6a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 6cIt is a schematic diagram of the main structure of the sixth embodiment of the ship deck equipment base of the present invention; Figure 6d It is a side structural schematic diagram of a sixth embodiment of the ship deck equipment base of the present invention; Figure 7a It is a schematic diagram of the main structure of another wall-mounted deck equipment base in the prior art; Figure 7b for Figure 7a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 7c It is a schematic diagram of the main structure of the seventh embodiment of the ship deck equipment base of the present invention; Figure 7d It is a side structural schematic diagram of the seventh embodiment of the ship deck equipment base of the present invention; Figure 8a It is a schematic diagram of the main structure of a cantilevered deck equipment base in the prior art; Figure 8b for Figure 8a A schematic diagram of the top view of the ship deck equipment base is shown; Figure 8c It is a schematic diagram of the main structure of the eighth embodiment of the ship deck equipment base of the present invention; Figure 8d It is a top view of the structure of the eighth embodiment of the ship deck equipment base of the present invention; Figure 8e It is a side structural schematic diagram of the eighth embodiment of the ship deck equipment base of the present invention.

[0018] In the figure, 1- panel, 2- web, 3- elbow plate, 4- equipment bolt hole.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0021] It should be noted that in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] The ship deck equipment base proposed in the present invention is designed in an appearance design mode, that is, the appearance of the base is shaped to avoid specular scattering, avoid cavities, reduce coupling with surrounding equipment or structures, and achieve the purpose of reducing the RCS value of the entire ship. The overall design principles are as follows: (1) The base shape should be reasonably designed to be inward or outward inclined. Except for special circumstances, any exposed face plate 1, web 2 and bracket 3 of the base should not be perpendicular to the horizontal plane, and straight wall structure should be avoided; (2) The area of ​​panel 1 is smaller than the projected area of ​​the equipment outline above it (i.e. panel 1 generally does not exceed the equipment installation outline). The overall shape of the base should integrate the equipment and the hull structure as much as possible to reduce coupling with surrounding equipment or structures; (3) The base web 2 and bracket 3 should be pushed outward to the edge of the panel 1 as far as possible (i.e. the distance between the connection between the web 2 and the panel 1 and the edge of the panel 1 should be 5 mm to 10 mm), and sharp angles should be avoided in the exposed parts to eliminate angular reflection as much as possible; (4) The connecting cables of the equipment should be passed through the inside of the base as much as possible to reduce the length of the exposed cables; (5) Under the condition of satisfying the use and installation, the base web 2 shall have as few water holes or hand holes as possible or as few as possible. When there are special requirements, the hand holes or hand holes shall be opened on the side close to the center of the ship; (6) It is not recommended to use round tubes for the base; (7) The bracket 3 of the base should be concealed as much as possible. The bottom of the floor-standing base can be changed to a quadrangular pyramid or a pyramid polyhedron, and the pyramid surface is designed to be inclined outward. If the equipment installation allows, the equipment bolt hole 4 should also be concealed; (8) The foundation shall not form a cavity structure in the horizontal direction. For ground-type foundations, if the face plate 1, bracket 3 and web 2 inevitably form a cavity structure, the cavity opening is to face the inside of the foundation or towards the side close to the center of the ship; (9) For bases that cannot adopt the above-mentioned forms, shielding or coating with absorbing materials should be adopted to reduce radar wave reflection.

[0023] The following eight embodiments are used for detailed description.

[0024] The present invention proposes a first embodiment of a ship deck equipment base. In this embodiment, based on the prior art Figure 1a and Figure 1b Improvements to the base shown, see Figure 1c and Figure 1d The base body includes a panel 1 and a web 2 and a bracket 3 located below and connected to the panel 1. The bracket 3 is located inside the web 2 (that is, the external design of the prior art is changed to an inward design, which can greatly reduce the RCS value). The angle formed by the web 2 and the hull is 95°~99°.

[0025] The web 2 forms a truncated cone structure, the panel 1 is a circular plate-like structure, the toggle plate 3 forms a circular sleeve structure at the bottom end of the panel 1 , and the opening formed by the toggle plate 3 is located inside the panel 1 .

[0026] The present invention proposes a second embodiment of a ship deck equipment base. In this embodiment, based on Figure 2a and Figure 2b Improvements to the mid-base, see Figure 2c The base body is a floor-standing type. The difference between this embodiment and the first embodiment is that in this embodiment, a hollow cavity is opened in the middle of the panel 1, and the middle of the hollow cavity is a cylindrical cavity. The side wall of the cylindrical cavity is the bracket 3. The angle formed by the web 2 and the hull is 95°~99°.

[0027] The present invention proposes a third embodiment of a ship deck equipment base. In this embodiment, based on Figure 3a and Figure 3b Improvements to the mid-base, see Figure 3c and Figure 3d The base body is a floor-standing type. The difference between this embodiment and the first embodiment is that in this embodiment, the cross section of the panel 1 is in the shape of a square frame, and the four webs 2 form a quadrangular pyramid structure. A hollow cavity is opened in the middle of the panel 1, and the hollow cavity is a square cavity. The side wall of the square cavity is the bracket 3. The angle formed by the web 2 and the hull is 95°~99°.

[0028] The present invention proposes a fourth embodiment of a ship deck equipment base. In this embodiment, based on Figure 4a and Figure 4b Improvements to the mid-base, see Figure 4c and Figure 4d The base body is floor-standing and has a split structure. In this embodiment, the cross-section of the panel 1 is square, and the opposite side of the two split bases is a bracket 3. The other three sides supporting the panel 1 are all webs 2. The angle formed by the web 2 and the hull is 95°~99° (97° is used as an example in the figure for schematic illustration).

[0029] The present invention proposes a fifth embodiment of a ship deck equipment base. In this embodiment, based on Figure 5a and Figure 5b Improvements to the mid-base, see Figure 5c and Figure 5dThe base body is wall-mounted and has a split structure. In this embodiment, the panel 1 is a flat plate with a waist-shaped hole in the middle and an isosceles trapezoidal shape as a whole. The side of the hull used to connect with one side of the web 2 is the hull side plate, and the panel 1 is arranged opposite to the hull side plate. The panel 1 is arranged parallel to the hull side plate. The angle formed by the side and bottom of the panel 1 is 95°~99° (97° is used as an example in the figure). The web 2 on the side of the panel 1 is arranged parallel to the side of the panel 1, that is, the angle formed by the outer side of the web 2 and the horizontal plane is 95°~99°. The toggle plate 3 forms a waist-shaped cavity structure inside the panel 1.

[0030] The present invention proposes a sixth embodiment of a ship deck equipment base. In this embodiment, based on Figure 6a and Figure 6b Improvements to the mid-base, see Figure 6c and Figure 6d The base body is wall-mounted and has an upper and lower split structure. In this embodiment, the angle formed between the outer sides of the two webs 2 located on both sides of the panel 1 and the horizontal plane is 95° to 99°. A toggle plate 3 is arranged inside the web 2.

[0031] The present invention proposes a seventh embodiment of a ship deck equipment base. In this embodiment, based on Figure 7a and Figure 7b Improvements to the mid-base, see Figure 7c and Figure 7d The base body is wall-mounted and has a left and right split structure, and the two split structures are symmetrically arranged. In this embodiment, the angle between the side web 2 and the horizontal plane is 95°~99° (97° is used as an example in the figure). A toggle plate 3 is arranged inside the web 2. The angle formed by the side and bottom of the panel 1 is 95°~99°. The cross section of the panel 1 is a parallelogram.

[0032] The present invention proposes an eighth embodiment of a ship deck equipment base. In this embodiment, based on Figure 8a and Figure 8b Improvements to the mid-base, see Figure 8c and Figure 8e The base body is cantilevered, the angle between the panel 1 and the web 2 on the side away from the hull is 80°~85° (83° is used as an example in the figure), and the angle between the web 2 on both sides of the panel 1 and the horizontal plane is 95°~99° (97° is used as an example in the figure). The cross section of the panel 1 is an isosceles trapezoid.

[0033] The ship deck equipment base proposed in the present invention can effectively reduce the RCS value of a large number of small reflection sources such as the ship deck small equipment installation bases by optimizing the RCS reduction of the typical small bases on the ship deck based on the optimized ship deck base appearance, thereby helping to improve the overall radar wave stealth capability of the ship.

[0034] The present invention further proposes a design method for a ship deck equipment base.

[0035] In this preferred embodiment, a design method for a ship deck equipment base includes the following steps: The toggle plate 3 is arranged inside the web 2 to form an inward-retracted structure, and the exposed part of the base body avoids sharp angles, and the panel 1 of the base body does not exceed the outer contour of the equipment; According to the structural type of the base body, the connection structure between the face plate 1, the web 2 and the bracket 3 of the base body is determined; When the base body is a floor-standing type, the angle formed by the web 2 and the hull is 95° to 99°; When the base body is wall-mounted, the angle formed by the side and bottom surfaces of the panel 1 is 95° to 99°; When the base body is cantilevered, the angle between the panel 1 and the web 2 on the side away from the hull is 80°~85°, and the angle between the webs 2 on both sides of the panel 1 and the horizontal plane is 95°~99°.

[0036] The design method proposed in the present invention designs different angles according to different types of bases, thereby effectively reducing the RCS value of a large number of small reflection sources such as the bases for installing small equipment on the ship's deck, which helps to improve the overall radar wave stealth capability of the ship.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ship deck equipment base, characterized in that: The base body includes a panel, a web and a bracket located below the panel and connected to the web, wherein the bracket is located inside the web, When the base body is a floor-standing type, the angle formed by the web and the hull is 95°~99°; When the base body is wall-mounted, the angle formed by the side and bottom of the panel is 95°~99°; When the base body is cantilevered, the angle between the panel and the bracket on the side away from the hull is 80°~85°, and the angle between the web plates on both sides of the panel and the horizontal plane is 95°~99°.

2. The deck equipment base according to claim 1, characterized in that: When the base body is wall-mounted, the side of the hull used for connecting with one side of the web is the hull side plate, and the panel is arranged opposite to the hull side plate, and the panel is arranged parallel to the hull side plate.

3. The deck equipment base according to claim 2, characterized in that: The angle formed between the outer side of the web and the horizontal plane is 95°~99°.

4. The deck equipment base according to claim 1, characterized in that: When the base body is floor-standing, the distance between the connection between the web and the panel and the edge of the panel is 5 mm to 10 mm.

5. The deck equipment base according to claim 1, characterized in that: The area of ​​the panel is smaller than the projected area of ​​the outer contour of the device above the panel.

6. The deck equipment base according to claim 1, characterized in that: When a cavity is provided on the base body, the opening of the cavity faces the inside of the base body or the midship side.

7. The deck equipment base according to claim 1, characterized in that: When the base body is a floor-standing type, the web forms a pyramidal polyhedron structure.

8. The ship deck equipment base according to claim 1, characterized in that: The outside of the base body is coated with a wave absorbing material.

9. The ship deck equipment base according to any one of claims 1 to 8, characterized in that: When a water hole or a hand hole is provided on the belly plate, the hand hole or the hand hole is opened on the midship side.

10. A design method for a ship deck equipment base according to any one of claims 1 to 9, characterized in that: The following steps are involved: The bracket is set inside the web to form an inward-retracted structure, and the exposed part of the base body avoids sharp angles, and the panel of the base body does not exceed the outer contour of the equipment; According to the structural type of the foundation body, the connection structure between the face plate, web plate and bracket of the foundation body is determined; When the base body is a floor-standing type, the angle formed by the web and the hull is 95°~99°; When the base body is wall-mounted, the angle formed by the side and bottom of the panel is 95°~99°; When the base body is cantilevered, the angle formed by the panel and the web on the side away from the hull is 80°~85°, and the angle formed by the webs on both sides of the panel and the horizontal plane is 95°~99°.

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