Shipboard equipment pedestal and method of designing same

Abstract

The application provides a ship surface equipment base and a design method thereof. The base body of the ship surface equipment base comprises a panel, a web plate and an elbow plate which are connected below the panel and inside the web plate. When the base body is floor type, the included angle between the web plate and the ship body is 95-99 degrees. When the base body is wall type, the included angle between the side surface and the bottom surface of the panel is 95-99 degrees. When the base body is cantilever type, the included angle between the panel and the elbow plate on the side away from the ship body is 80-85 degrees, and the included angle between the web plate on both sides of the panel and the horizontal plane is 95-99 degrees. The ship surface equipment base can effectively reduce the RCS value of the ship surface small equipment installation base which is a large number of small reflection sources by reducing and optimizing the shape of the typical small base on the ship surface based on the optimized ship surface base shape, and can help to improve the radar wave stealth capability of the ship.

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] Pedestals, a common structure on ships, are specialized structures designed to securely mount equipment to the hull structure. Currently, research on ship pedestal design focuses primarily on high-strength, high-vibration-resistance, and high-impact design, while relatively little research has focused on pedestal stealth. Given the unique deck environment in which they operate, the design approach differs from traditional pedestals. These pedestals place special demands on stealth, versatility, environmental adaptability, and maintainability.

[0003] Currently, the bases of large shipboard equipment often have radar stealth design requirements. However, to maintain structural strength and ease of construction, the bases of smaller equipment on the ship's deck are often designed with a vertical datum plane, somewhat ignoring the impact of RCS. Furthermore, to facilitate equipment maintenance and installation, some bases have large access holes in the belly plate, forming a cavity structure that affects the ship's stealth performance.

[0004] As the navy's requirements for ship radar wave stealth performance increase, the installation bases of small ship deck equipment, as important small reflection sources, are numerous and have an increasingly prominent impact on the overall radar wave stealth of the ship. 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 ship deck equipment base, wherein the base body includes a panel, a web and a bracket located below and connected to the panel, wherein the bracket is located inside the web, wherein:

[0007] When the base body is a floor-standing type, the angle formed by the web and the hull is 95°~99°;

[0008] When the base body is wall-mounted, the angle formed by the side and bottom surfaces of the panel is 95°~99°;

[0009] When the base body is cantilevered, the angle formed between the panel and the bracket on the side away from the hull is 80°~85°, and the angle formed between the webs on both sides of the panel and the horizontal plane is 95°~99°.

[0010] 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.

[0011] Preferably, the angle formed between the outer side of the web and the horizontal plane is 95° to 99°.

[0012] 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.

[0013] Preferably, the area of ​​the panel is smaller than the projected area of ​​the outer contour of the device above the panel.

[0014] Preferably, when a cavity is provided on the base body, the opening of the cavity faces the interior of the base body or the midship side.

[0015] Preferably, when the base body is a floor-standing type, the web forms a pyramidal polyhedron structure.

[0016] Preferably, the exterior of the base body is coated with a wave-absorbing material.

[0017] 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.

[0018] The present invention further proposes a design method for the above-mentioned ship deck equipment base, comprising the following steps:

[0019] The bracket is set inside the web to form an inward-retracting structure. 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.

[0020] Determine the connection structure between the face plate, web plate and bracket plate of the foundation body according to the structural type of the foundation body;

[0021] When the base body is a floor-standing type, the angle formed by the web and the hull is 95°~99°;

[0022] When the base body is wall-mounted, the angle formed by the side and bottom surfaces of the panel is 95°~99°;

[0023] When the base body is cantilevered, the angle formed between the panel and the web on the side away from the hull is 80°~85°, and the angle formed between the webs on both sides of the panel and the horizontal plane is 95°~99°.

[0024] The ship deck equipment base proposed in the present invention, by optimizing the RCS reduction of the appearance of typical small bases on the ship deck, can effectively reduce the RCS value of the numerous small reflection sources such as the installation bases of small ship deck equipment based on the optimized appearance of the ship deck base, thereby helping to improve the overall radar wave stealth capability of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1a This is a schematic diagram of the main structure of a floor-standing ship deck equipment base in the prior art;

[0026] Figure 1b for Figure 1a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0027] Figure 1c This is a schematic diagram of the main structure of the first embodiment of the ship deck equipment base of the present invention;

[0028] Figure 1d This is a schematic top view of the structure of the first embodiment of the ship deck equipment base of the present invention;

[0029] Figure 2a This is a schematic diagram of the main structure of another floor-standing ship deck equipment base in the prior art;

[0030] Figure 2b for Figure 2a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0031] Figure 2c This is a schematic diagram of the main structure of the second embodiment of the ship deck equipment base of the present invention;

[0032] Figure 3a This is a schematic diagram of the main structure of another floor-standing ship deck equipment base in the prior art;

[0033] Figure 3b for Figure 3a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0034] Figure 3c This is a schematic diagram of the main structure of the third embodiment of the ship deck equipment base of the present invention;

[0035] Figure 3d This is a schematic top view of the structure of the third embodiment of the ship deck equipment base of the present invention;

[0036] Figure 4a This is a schematic diagram of the main structure of another ground-type ship deck equipment base in the prior art;

[0037] Figure 4b for Figure 4a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0038] Figure 4c This is a schematic diagram of the main structure of the fourth embodiment of the ship deck equipment base of the present invention;

[0039] Figure 4d This is a schematic top view of the structure of a fourth embodiment of a ship deck equipment base according to the present invention;

[0040] Figure 5a This is a schematic diagram of the main structure of a wall-mounted ship deck equipment base in the prior art;

[0041] Figure 5b for Figure 5a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0042] Figure 5c This is a schematic diagram of the main structure of the fifth embodiment of the ship deck equipment base of the present invention;

[0043] Figure 5d This is a side structural diagram of a fifth embodiment of the ship deck equipment base of the present invention;

[0044] Figure 6a This is a schematic diagram of the main structure of another wall-mounted ship deck equipment base in the prior art;

[0045] Figure 6b for Figure 6a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0046] Figure 6c This is a schematic diagram of the main structure of the sixth embodiment of the ship deck equipment base of the present invention;

[0047] Figure 6d This is a side structural diagram of a sixth embodiment of a ship deck equipment base according to the present invention;

[0048] Figure 7a This is a schematic diagram of the main structure of another wall-mounted ship deck equipment base in the prior art;

[0049] Figure 7b for Figure 7a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0050] Figure 7c This is a schematic diagram of the main structure of the seventh embodiment of the ship deck equipment base of the present invention;

[0051] Figure 7d This is a side structural diagram of a seventh embodiment of the ship deck equipment base of the present invention;

[0052] Figure 8a This is a schematic diagram of the main structure of a cantilevered ship deck equipment base in the prior art;

[0053] Figure 8b for Figure 8a A schematic diagram of the top view of the ship's deck equipment base is shown;

[0054] Figure 8c This is a schematic diagram of the main structure of the eighth embodiment of the ship deck equipment base of the present invention;

[0055] Figure 8dThis is a schematic top view of the structure of an eighth embodiment of the ship deck equipment base of the present invention;

[0056] Figure 8e It is a side structural schematic diagram of the eighth embodiment of the ship deck equipment base of the present invention.

[0057] In the figure, 1- panel, 2- web, 3- elbow plate, 4- equipment bolt hole.

[0058] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] 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," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] The ship deck equipment base proposed in this invention is designed in an external shape, that is, the base shape is reshaped to avoid specular scattering, avoid cavities, and reduce coupling with surrounding equipment or structures, thereby achieving the purpose of reducing the RCS value of the entire ship. Its overall design principles are as follows:

[0062] (1) The base shape should be reasonably designed to be inward or outward inclined. Except for special circumstances, any exposed panel 1, web 2 and bracket 3 of the base should not be perpendicular to the horizontal plane, and straight wall structure should be avoided;

[0063] (2) The area of ​​panel 1 is smaller than the projected area of ​​the outer contour of the equipment above it (i.e., panel 1 generally does not exceed the outer contour of the equipment installation). 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;

[0064] (3) The base web 2 and bracket 3 should be pushed outward to the edge of the panel 1 as much 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). Avoid sharp angles in the exposed parts and try to eliminate angular reflections;

[0065] (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;

[0066] (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;

[0067] (6) It is not recommended to use round tubes for the base;

[0068] (7) The bracket 3 of the base should be as recessed as possible. The bottom of the floor-standing base can be changed to a quadrangular pyramid or a pyramidal polyhedron, with the pyramidal surface designed to be inclined outward. If the equipment installation allows, the equipment bolt hole 4 should also be recessed;

[0069] (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 shall be towards the inside of the foundation or towards the side close to the center of the ship;

[0070] (9) For bases that cannot adopt the above-mentioned forms, shielding or coating with absorbing materials should be adopted to reduce radar wave reflection.

[0071] The following eight embodiments are used to illustrate the present invention in detail.

[0072] 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, 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 existing technology 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°.

[0073] The web 2 forms a truncated cone structure, the panel 1 is a circular plate 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.

[0074] The present invention proposes a second embodiment of a ship deck equipment base. In this embodiment, it is based on Figure 2a and Figure 2b Improvements to the mid-base, see Figure 2c The base body is floor-standing. This embodiment differs from the first embodiment in that a hollow cavity is defined in the center of the panel 1. The central portion of this cavity is cylindrical. The sidewalls of this cylindrical cavity serve as brackets 3. The angle formed between the web 2 and the hull is between 95° and 99°.

[0075] The present invention proposes a third embodiment of a ship deck equipment base. In this embodiment, it is based on Figure 3a and Figure 3bImprovements to the mid-base, see Figure 3c and Figure 3d The base body is floor-standing. This embodiment differs from the first embodiment in that the panel 1 has a square cross-section, with four webs 2 forming a quadrangular pyramid structure. A square hollow cavity is defined in the center of the panel 1. The side walls of the square cavity serve as brackets 3. The angle between the webs 2 and the hull is between 95° and 99°.

[0076] The present invention proposes a fourth embodiment of a ship deck equipment base. In this embodiment, it is 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. The opposite side of the two split bases is the bracket 3, and 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).

[0077] The present invention proposes a fifth embodiment of a ship deck equipment base. In this embodiment, it is based on Figure 5a and Figure 5b Improvements to the mid-base, see Figure 5c and Figure 5d The base body is wall-mounted and has a split structure. In this embodiment, panel 1 is a flat plate with a waist-shaped hole in the middle and an overall isosceles trapezoidal shape. The side of the hull that connects to one side of the web 2 is the hull side plate. Panel 1 is positioned opposite the hull side plate and is arranged parallel to the hull side plate. The angle formed by the side and bottom surfaces of panel 1 is 95° to 99° (97° is used as an example in the figure). The web 2 on the side of panel 1 is arranged parallel to the side of panel 1. In other words, the angle formed by the outer surface of web 2 with the horizontal plane is 95° to 99°. The bracket 3 forms a waist-shaped cavity structure within panel 1.

[0078] The present invention proposes a sixth embodiment of a ship deck equipment base. In this embodiment, it is 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 on both sides of the panel 1 and the horizontal plane is 95° to 99°. A toggle plate 3 is provided inside the web 2.

[0079] The present invention proposes a seventh embodiment of a ship deck equipment base. In this embodiment, it is based on Figure 7a and Figure 7b Improvements to the mid-base, see Figure 7c and Figure 7dThe base body is wall-mounted and consists of two symmetrically arranged left and right parts. In this embodiment, the angle between the side web 2 and the horizontal plane is 95° to 99° (97° is used as an example in the figure). A toggle plate 3 is installed inside the web 2. The angle between the side and bottom surfaces of the panel 1 is 95° to 99°. The cross-section of the panel 1 is a parallelogram.

[0080] The present invention proposes an eighth embodiment of a ship deck equipment base. In this embodiment, it is based on Figure 8a and Figure 8b Improvements to the mid-base, see Figure 8c and Figure 8e The base is cantilevered. The angle between the faceplate 1 and the web 2 facing away from the hull is 80° to 85° (83° is used as an example in the figure). The webs 2 on either side of the faceplate 1 form angles with the horizontal plane of 95° to 99° (97° is used as an example in the figure). The cross-section of the faceplate 1 is an isosceles trapezoid.

[0081] The ship deck equipment base proposed in the present invention, by optimizing the RCS reduction of the appearance of typical small bases on the ship deck, can effectively reduce the RCS value of the numerous small reflection sources such as the installation bases of small ship deck equipment based on the optimized appearance of the ship deck base, thereby helping to improve the overall radar wave stealth capability of the ship.

[0082] The present invention further proposes a design method for a ship deck equipment base.

[0083] In this preferred embodiment, a method for designing a ship deck equipment base includes the following steps:

[0084] The bracket 3 is arranged inside the web 2 to form an inward-retracting 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;

[0085] According to the structural type of the base body, the connection structure between the face plate 1, web 2 and bracket 3 of the base body is determined;

[0086] When the base body is a floor-standing type, the angle formed by the web 2 and the hull is 95°~99°;

[0087] When the base body is wall-mounted, the angle formed by the side and bottom surfaces of the panel 1 is 95°~99°;

[0088] When the base body is cantilevered, the angle formed between the panel 1 and the web 2 on the side away from the hull is 80°~85°, and the angle formed between the webs 2 on both sides of the panel 1 and the horizontal plane is 95°~99°.

[0089] The design method proposed in the present invention designs different angles according to different types of bases, thereby effectively reducing the RCS value of the numerous 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.

[0090] 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 description and drawings, or directly or indirectly applied to 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 and connected to the panel, 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° to 99°, and the distance between the connection between the web and the panel and the edge of the panel is 5 mm to 10 mm; When the base body is wall-mounted, the angle formed between the side surface and the bottom surface of the panel is 95°~99°, the side surface 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. The panel is arranged parallel to the hull side plate, and the angle formed between the outer side of the web and the horizontal plane is 95°~99°; When the base body is cantilevered, the angle between the panel and the bracket on the side facing away from the hull is 80°~85°, and the angle between the webs on both sides of the panel and the horizontal plane is 95°~99°; When the base body is provided with a cavity, the opening of the cavity faces the interior of the base body or the midship side.

2. The ship 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.

3. The ship 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.

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

5. The ship deck equipment base according to any one of claims 1 to 4, characterized in that: 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.

6. A design method for a ship deck equipment base according to any one of claims 1 to 5, characterized in that: The following steps are involved: The bracket is set inside the web to form an inward-retracting structure. 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. Determine the connection structure between the face plate, web plate and bracket plate of the foundation body according to the structural type of the foundation body; 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 surfaces of the panel is 95°~99°; When the base body is cantilevered, the angle formed between the panel and the web on the side away from the hull is 80°~85°, and the angle formed between the webs on both sides of the panel and the horizontal plane is 95°~99°.

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