Titanium alloy fixed embedded hangar structure for ships

Abstract

This invention relates to hangar structures for surface ships, and discloses a fixed, embedded titanium alloy hangar structure for naval use. The hangar structure is designed in layers, employing various welding techniques to achieve an embedded installation of the titanium alloy hangar structure within the superstructure of the ship's deck. Furthermore, since the ship's deck and superstructure decks are made of steel, and the hangar structure is made of titanium alloy, a titanium-steel composite joint is used as an intermediary between the contact surfaces of the hangar structure and various parts of the hull. This titanium-steel composite joint consists of two layers: one layer of steel and the other of titanium alloy. One side of the titanium-steel composite joint is welded to the deck or steel sill, while the other side is welded to the hangar structure, thus achieving effective fixation of the hangar to the hull.

Description

Technical Field

[0001] This invention relates to hangar structures for surface ships, specifically to fixed, embedded titanium alloy hangar structures for ships. Background Technology

[0002] Helicopter hangars on surface ships are used for parking helicopters and for related support operations. The hangar is typically located aft of the superstructure, forward of the helicopter landing platform. The hangar structure is generally made of steel, the same material as the superstructure. In the overall ship design, the hangar structure is designed for a specific helicopter model. To accommodate the deployment of new shipborne helicopters, the hangar also needs adjustment. To achieve the deployment of new helicopters within limited overall resources and minimize risks, this invention proposes an embedded, fixed titanium alloy hangar structure that allows for the parking of new helicopters while maintaining controllable risks and minimal weight. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, a fixed, embedded titanium alloy hangar structure for ships is provided. This structure allows the titanium alloy hangar to be embedded into the superstructure of the ship's deck, ensuring the stability of the hangar structure's connection to the superstructure.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0005] A shipboard fixed embedded titanium alloy hangar structure is characterized in that: the bottom of the hangar structure is installed on the ship's deck through a steel sill; an open first through hole is provided on the first deck of the superstructure; and an open or closed second through hole is provided on the second deck; the hangar structure is embedded into the ship's superstructure through the through hole.

[0006] The hangar structure is divided into three layers: upper, middle, and lower. The bottom of the lower layer of the hangar structure and the steel sills of the hull deck are fixed using a first type of titanium-steel composite joint structure. Part of the top of the lower layer of the hangar structure is located within the area of ​​the first through-hole, and another part is located below the first deck and connected to the first deck using the first type of titanium-steel composite joint structure. Part of the bottom of the middle layer of the hangar structure is located within the area of ​​the first through-hole and is directly welded to the top of the lower layer of the hangar structure. Another part of the bottom of the middle layer of the hangar structure is located above the first deck and connected to the first deck using the first type of titanium-steel composite joint structure. Part of the top of the middle layer of the hangar structure is located within the area of ​​the second through-hole, and another part is located below the second deck and connected to the second deck using the first type of titanium-steel composite joint structure. The bottom of the upper layer of the hangar structure is located within the area of ​​the second through-hole and is directly welded to the top of the middle layer of the hangar structure.

[0007] The hangar structure has horizontal gaps between the first and second through holes and the first or second deck, and the height of the direct welded connection is higher than the height of the through hole; a horizontally arranged titanium plate is fixed at the direct welded connection, the length of the titanium plate is greater than the horizontal gap, and a second type of titanium-steel composite joint structure is used between the titanium plate and the first or second deck.

[0008] Both the first and second types of titanium-steel composite joint structures use titanium-steel composite joints. The titanium-steel composite joint consists of two layers, each made of the same material as the component it contacts.

[0009] According to the above technical solution, the hangar structure is composed of titanium plates of different sizes, titanium stiffeners, and titanium composite T-shaped profiles, adopting a transverse or longitudinal frame structure with a longitudinal spacing of S1 and a transverse spacing of S2, matching the superstructure structure; the first and second decks of the superstructure are composed of steel plates, steel stiffeners, and steel composite T-shaped profiles; the connection between the hangar structure and the hull is divided into connections at ordinary stiffener components and connections at T-shaped profile components.

[0010] According to the above technical solution, the first titanium-steel composite joint structure adopts a horizontally arranged titanium-steel composite joint, which is placed between the hangar structure and the steel sill, or between the hangar structure and the first or second deck. The titanium-steel composite joint is perpendicular to the side wall of the hangar structure or the steel sill, and the upper and lower parts of the titanium-steel composite joint are welded to the contact surface respectively.

[0011] According to the above technical solution, in the area where the T-shaped profile of the hangar structure is located, a second titanium-steel composite joint needs to be added at the protruding web of the T-shaped profile.

[0012] According to the above technical solution, the second type of titanium-steel composite joint structure is divided into two types based on the structure of the deck: one is a horizontal lap welding form, and the other is a titanium-steel composite joint with vertical arrangement added on the basis of the horizontal lap welding form.

[0013] According to the above technical solution, when connecting the titanium plate and the stiffeners of the first or second deck, the second welding structure adopts a horizontally arranged titanium-steel composite joint. The titanium-steel composite joint is located between the titanium plate and the upper surface of the first or second deck, and the three are welded together in a horizontal lap joint manner, presenting a stepped structure.

[0014] According to the above technical solution, when connecting the titanium plate to the T-section of the first or second deck, the deck includes a horizontal deck and a protruding deck web located below the deck; the second welding structure also includes a vertically arranged titanium web and a titanium-steel composite joint, as well as an injection filler; the horizontal deck is connected to the outer half of the bottom surface of the titanium web through the horizontally arranged titanium-steel composite joint; the titanium web is located at the bottom of the titanium plate, the top of the titanium web is directly welded to the titanium plate, and one side of the titanium web is directly welded to the outer wall of the hangar structure; the vertically arranged titanium-steel composite joint is welded between the deck web and the titanium web, and the width of the titanium web is adjusted according to the thickness of the vertically arranged titanium-steel composite joint.

[0015] According to the above technical solution, the through-hole of the second deck adopts a closed structure; the opening is located on the rear wall structure side of the hangar, and a door-shaped passage is provided on the rear wall structure.

[0016] According to the above technical solution, the inner wall of the first half of the first through hole extends into the hangar and passes through the inner wall of the hangar structure, forming an inner platform of the hangar.

[0017] The present invention has the following beneficial effects:

[0018] The hangar structure consists of three layers: upper, middle, and lower. After the steel sills at the bottom of the lower layer and the hull deck are fixed using the first type of titanium-steel composite joint structure, the areas of the upper, middle, and lower layers within the through holes are directly welded together to form a box-like structure. The lower and middle layers, located outside the through holes, are respectively fixed between the hull deck and the first deck, and between the first deck and the second deck, using the first type of titanium-steel composite joint structure. This achieves the initial fixation of the hangar structure between the hull deck and the superstructure. In addition, a horizontal gap is left between the side walls of the hangar and the first and second decks, and titanium plates are installed. The titanium plates are welded to the first and second decks using the second type of titanium-steel composite joint structure, which laterally reinforces the hangar structure and the superstructure decks, further improving the stability of the hangar structure.

[0019] Based on the above measures, the hangar structure is designed in layers and various welding structures are adopted, so as to realize the installation of the titanium alloy hangar structure in the superstructure of the ship's deck in an embedded manner.

[0020] In addition, since the decks of the hull and superstructure are made of steel, and the hangar structure is made of titanium alloy, titanium-steel composite joints are installed as intermediate components between the contact surfaces of the hangar structure and various parts of the hull. The titanium-steel composite joint consists of two layers: one layer of steel material and the other layer of titanium alloy material. The steel material side of the titanium-steel composite joint is welded to the deck or steel sill, and the titanium alloy material side is welded to the hangar structure, thereby achieving effective fixation of the hangar on the hull. Attached Figure Description

[0021] Figure 1 This is a longitudinal sectional view of the hangar structure provided in an embodiment of the present invention;

[0022] Figure 2 This is a top view of the hangar structure provided in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the first deck in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the second deck according to an embodiment of the present invention;

[0025] Figure 5 This is a side view of the hangar structure provided in an embodiment of the present invention;

[0026] Figure 6 This is a rear view of an embodiment provided by the present invention;

[0027] Figure 7 This is a front view of an embodiment provided by the present invention;

[0028] Figure 8 This is a front sectional view of an embodiment of the present invention, located not at the platform inside the hangar, but at the T-shaped section of the hangar structure;

[0029] Figure 9 This is a front sectional view of the platform inside the hangar and located at the T-shaped section of the hangar structure, according to an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the hangar structure and deck using the first type of titanium-steel composite joint structure provided in the embodiments of the present invention;

[0031] Figure 11 This is a schematic diagram of the hangar structure T-section and steel sill provided in an embodiment of the present invention, using the first titanium-steel composite joint structure. Figure 1 (correspond Figure 9 (Middle IV)

[0032] Figure 12 yes Figure 11 A-direction view;

[0033] Figure 13 This is a schematic diagram of the hangar structure T-section and steel sill provided in an embodiment of the present invention, using the first titanium-steel composite joint structure. Figure 2 (correspond Figure 8 (Middle II)

[0034] Figure 14 yes Figure 13 View from direction B;

[0035] Figure 15This is a schematic diagram of the second type of welding used at the non-T-shaped section of the titanium plate and deck located on the side wall of the hangar structure, according to an embodiment of the present invention.

[0036] Figure 16 This is a schematic diagram of the second type of welding used at the titanium plate and the T-shaped profile of the deck located on the side wall of the hangar structure, according to an embodiment of the present invention. Figure 1 (correspond Figure 8 Middle I);

[0037] Figure 17 yes Figure 16 C-direction view;

[0038] Figure 18 This is a schematic diagram of the second type of welding used at the titanium plate and the T-shaped profile of the deck located on the side wall of the hangar structure, according to an embodiment of the present invention. Figure 2 (correspond Figure 9 (Middle III)

[0039] Figure 19 yes Figure 18 View from D direction;

[0040] In the diagram: 1. Steel sill; 2. Hull deck; 3. First deck; 4. First through-hole; 5. Second deck; 6. Second through-hole; 7. Lower layer of hangar structure; 8. First type of welding; 9. Middle layer of hangar structure; 10. Upper layer of hangar structure; 11. Horizontal gap; 12. Titanium plate; 13. Second type of titanium-steel composite joint structure; 14. Titanium-steel composite joint; 14-1. Steel plate layer; 14-2. Titanium plate layer; 14A. Horizontally arranged titanium-steel composite joint; 14B. Second titanium-steel composite joint; 14C. Titanium-steel composite joint; 15. T-shaped profile of hangar structure; 16. Titanium web; 17. Injection filler; 18. Platform inside hangar; 19. Deck; 20. Deck web. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Reference Figures 1-19 As shown, the present invention provides a shipboard fixed embedded titanium alloy hangar structure.

[0043] Example 1

[0044] like Figure 1-7 As shown, the bottom of the hangar structure is installed on the ship's deck 2 via a steel sill 1. The first deck 3 of the superstructure has an open first through hole 4, and the second deck 5 has an open or closed second through hole 6. The hangar structure is embedded into the ship's superstructure through the through holes. Since the ship's deck is loaded at an angle, a steel sill is installed on the pile deck, and the steel sill matches the horizontal bottom surface of the hangar structure.

[0045] The hangar structure is divided into three layers: upper, middle, and lower. The bottom of the lower layer 7 is fixed to the steel sill of the hull deck using a first type of welding structure 8. Part of the top of the lower layer is located within the area of ​​the first through-hole, and another part is located below the first deck and connected to the first deck using a first type of titanium-steel composite joint structure. Part of the bottom of the middle layer 9 is located within the area of ​​the first through-hole and is directly welded to the top of the lower layer. Another part of the bottom of the middle layer is located above the first deck and connected to the first deck using a first type of titanium-steel composite joint structure. Part of the top of the middle layer is located within the area of ​​the second through-hole, and another part is located below the second deck and connected to the second deck using a first type of titanium-steel composite joint structure. The bottom of the upper layer 10 is located within the area of ​​the second through-hole and is directly welded to the top of the middle layer.

[0046] The hangar structure has a horizontal gap 11 between the first and second through holes and the first or second deck, and the height of the direct welded connection is higher than the height of the through hole; a horizontally arranged titanium plate 12 is fixed at the direct welded connection, the length of the titanium plate is greater than the horizontal gap, and a second type of titanium-steel composite joint structure 13 is used between the titanium plate and the first or second deck.

[0047] Both the first and second types of titanium-steel composite joint structures utilize titanium-steel composite joint 14. This joint consists of two layers (steel plate layer 14-1 and titanium plate layer 14-2), each made of the same material as the component it contacts. The titanium-steel composite joint is a composite structure formed by explosively joining the titanium and steel plates together.

[0048] In this embodiment, the hangar structure is divided into three layers: upper, middle, and lower. After the steel sills at the bottom of the lower layer and the hull deck are fixed using the first type of titanium-steel composite joint structure, the areas of the upper, middle, and lower layers of the hangar structure located within the through holes are directly welded together to form a box-like structure. The lower and middle layers are fixed to the areas outside the through holes between the hull deck and the first deck, and between the first deck and the second deck, respectively, using the first type of titanium-steel composite joint structure. This achieves the initial fixation of the hangar structure between the hull deck and the superstructure. In addition, a horizontal gap is left between the side wall of the hangar and the first and second decks, and titanium plates are installed. The titanium plates are welded to the first and second decks using the second type of titanium-steel composite joint structure, which laterally reinforces the hangar structure and the decks of the superstructure, further improving the stability of the hangar structure.

[0049] Based on the above measures, the hangar structure is designed in layers and various welding structures are adopted, so as to realize the installation of the titanium alloy hangar structure in the superstructure of the ship's deck in an embedded manner.

[0050] In addition, since the decks of the hull and superstructure are made of steel, and the hangar structure is made of titanium alloy, titanium-steel composite joints are installed as intermediate components between the contact surfaces of the hangar structure and various parts of the hull. The titanium-steel composite joint consists of two layers: one layer of steel material and the other layer of titanium alloy material. The steel material side of the titanium-steel composite joint is welded to the deck or steel sill, and the titanium alloy material side is welded to the hangar structure, thereby achieving effective fixation of the hangar on the hull.

[0051] In Embodiment 1 above, the hangar structure is composed of titanium plates of different sizes, titanium stiffeners, and titanium composite T-shaped profiles, employing a transverse or longitudinal frame structure with a longitudinal frame spacing of S1 and a transverse frame spacing of S2, matching the superstructure structure. The first and second decks of the superstructure are composed of steel plates, steel stiffeners, and steel composite T-shaped profiles. The connection between the hangar structure and the hull is divided into connections using ordinary stiffeners and connections using T-shaped profiles. The length, width, and height dimensions of the titanium alloy hangar structure meet the parking requirements of specific helicopter models.

[0052] Example 2

[0053] The structure and principle of Example 2 are similar to those of Example 1, except that: Figure 8-14 As shown, a preferred implementation of the first titanium-steel composite joint structure is presented. The first titanium-steel composite joint structure adopts a horizontally arranged titanium-steel composite joint 14A, which is placed between the hangar structure and the steel sill, or between the hangar structure and the first deck or the second deck. The titanium-steel composite joint is perpendicular to the side wall of the hangar structure or the steel sill, and the upper and lower parts of the titanium-steel composite joint are welded to the contact surface, respectively.

[0054] As shown in the figure, in the area where the T-shaped profile 15 of the hangar structure is located, a second titanium-steel composite joint 14B needs to be added at the protruding web of the T-shaped profile.

[0055] Example 3

[0056] The structure and principle of Example 3 are similar to those of Example 1, except that: Figure 8-9 As shown in Figures 15-19, based on the differences in the connection between the deck and hangar structures, the second type of titanium-steel composite joint structure is divided into two types according to the deck structure: one is a horizontal lap welding form, and the other is a horizontal lap welding form with the addition of vertically arranged titanium-steel composite joints. (In the figures, the first horizontally arranged titanium-steel composite joint in both the first and second types of titanium-steel composite joint structures is labeled 14A.)

[0057] The first form specifically refers to the second welding structure using horizontally arranged titanium-steel composite joints when connecting the titanium plate and the stiffeners of the first or second deck. The titanium-steel composite joints are located between the titanium plate and the upper surface of the first or second deck, and the three are welded together in a horizontal lap joint manner, presenting a stepped structure.

[0058] The second form specifically involves connecting the titanium plate to the T-section of the first or second deck. The deck includes a horizontal deck 19 and a protruding deck web 20 located below the deck. The second welding structure also includes a vertically arranged titanium web 16 and a titanium-steel composite joint 14C, as well as an adhesive filler 17. The horizontal deck is connected to the outer half of the bottom surface of the titanium web through the horizontally arranged titanium-steel composite joint. The titanium web is located at the bottom of the titanium plate, and the top of the titanium web is directly welded to the titanium plate. One side of the titanium web is directly welded to the outer wall of the hangar structure. The vertically arranged titanium-steel composite joint is welded between the deck web and the titanium web, and the width of the titanium web is adjusted according to the thickness of the vertically arranged titanium-steel composite joint. The adhesive filler fills the gaps formed by the titanium plate, the horizontally arranged titanium-steel composite joint, the deck, the deck web, the vertically arranged titanium-steel composite joint, and the titanium web.

[0059] In embodiments 1-3, as shown in the figure, in order to further improve the fixed stability of the hangar on the upper structure, the through-hole of the second deck adopts a closed structure; the opening is located on the rear wall structure side of the hangar, and a door-shaped passage is provided on the rear wall structure.

[0060] In Examples 1-3, as Figure 8-9 As shown, the inner wall of the first half of the first through hole extends into the hangar and passes through the inner wall of the hangar structure, forming the hangar platform 18.

[0061] The above are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent changes made in accordance with the claims of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A shipboard fixed embedded titanium alloy hangar structure, characterized in that: The bottom of the hangar structure is installed on the ship's deck via a steel sill. An open first through-hole is provided on the first deck of the superstructure, and an open or closed second through-hole is provided on the second deck. The hangar structure is embedded into the ship's superstructure through the through-hole. The hangar structure is divided into three layers: upper, middle, and lower. The bottom of the lower layer of the hangar structure and the steel sills of the hull deck are fixed using a first type of titanium-steel composite joint structure. Part of the top of the lower layer of the hangar structure is located within the area of ​​the first through-hole, and another part is located below the first deck and connected to the first deck using the first type of titanium-steel composite joint structure. Part of the bottom of the middle layer of the hangar structure is located within the area of ​​the first through-hole and is directly welded to the top of the lower layer of the hangar structure. Another part of the bottom of the middle layer of the hangar structure is located above the first deck and connected to the first deck using the first type of titanium-steel composite joint structure. Part of the top of the middle layer of the hangar structure is located within the area of ​​the second through-hole, and another part is located below the second deck and connected to the second deck using the first type of titanium-steel composite joint structure. The bottom of the upper layer of the hangar structure is located within the area of ​​the second through-hole and is directly welded to the top of the middle layer of the hangar structure. The hangar structure has horizontal gaps between the first and second through holes and the first or second deck, and the height of the direct welded connection is higher than the height of the through hole; a horizontally arranged titanium plate is fixed at the direct welded connection, the length of the titanium plate is greater than the horizontal gap, and a second type of titanium-steel composite joint structure is used between the titanium plate and the first or second deck. Both the first and second types of titanium-steel composite joint structures use titanium-steel composite joints. The titanium-steel composite joint consists of two layers, each made of the same material as the component it contacts.

2. The shipborne fixed embedded titanium alloy hangar structure according to claim 1, characterized in that: The hangar structure is composed of titanium plates of different sizes, titanium reinforcing materials and titanium composite T-shaped profiles. It adopts a horizontal or vertical frame structure with a longitudinal frame spacing of S1 and a horizontal frame spacing of S2, which matches the superstructure. The first and second decks of the superstructure are composed of steel plates, steel stiffeners, and steel composite T-sections; the connection between the hangar structure and the hull is divided into connections at ordinary stiffener components and connections at T-sections.

3. The shipborne fixed embedded titanium alloy hangar structure according to claim 2, characterized in that: The first type of titanium-steel composite joint structure adopts a horizontally arranged titanium-steel composite joint, which is placed between the hangar structure and the steel sill, or between the hangar structure and the first or second deck. The titanium-steel composite joint is perpendicular to the side wall of the hangar structure or the steel sill, and the upper and lower parts of the titanium-steel composite joint are welded to the contact surface respectively.

4. The shipborne fixed embedded titanium alloy hangar structure according to claim 3, characterized in that: In the area where the T-shaped profile of the hangar structure is located, a second titanium-steel composite joint needs to be added at the protruding web of the T-shaped profile.

5. The shipborne fixed embedded titanium alloy hangar structure according to claim 2, characterized in that: The second type of titanium-steel composite joint structure is divided into two types according to the structure of the deck: one is a horizontal lap welding form, and the other is a titanium-steel composite joint with vertical arrangement added on the basis of the horizontal lap welding form.

6. The shipborne fixed embedded titanium alloy hangar structure according to claim 5, characterized in that: When connecting the titanium plate to the stiffeners of the first or second deck, the second welding structure adopts a horizontally arranged titanium-steel composite joint. The titanium-steel composite joint is located between the titanium plate and the upper surface of the first or second deck. The three are welded together in a horizontal lap joint manner, presenting a stepped structure.

7. The shipborne fixed embedded titanium alloy hangar structure according to claim 6, characterized in that: When connecting the titanium plate to the T-section of the first or second deck, the deck includes a horizontal deck and a protruding deck web located below the deck; the second welded structure also includes vertically arranged titanium webs and titanium-steel composite joints, as well as adhesive filler; the horizontal deck is connected to the outer half of the bottom surface of the titanium web through the horizontally arranged titanium-steel composite joints; the titanium web is located at the bottom of the titanium plate, the top of the titanium web is directly welded to the titanium plate, and one side of the titanium web is directly welded to the outer wall of the hangar structure; the vertically arranged titanium-steel composite joints are welded between the deck web and the titanium web, and the width of the titanium web is adjusted according to the thickness of the vertically arranged titanium-steel composite joints.

8. The shipborne fixed embedded titanium alloy hangar structure according to claim 1, characterized in that: The second deck has a closed-type through-hole structure; the opening is located on the rear wall structure of the hangar, and a door-shaped passage is provided on the rear wall structure.

9. The shipborne fixed embedded titanium alloy hangar structure according to claim 1, characterized in that: The inner wall of the first half of the first through hole extends into the hangar and passes through the inner wall of the hangar structure, forming an inner platform of the hangar.

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