Collision bulkhead and ship

Abstract

The application relates to the field of ship manufacturing, in particular to a collision-proof bulkhead and a ship. The water-approaching surface of the collision-proof bulkhead is provided with a step structure, and the step structure comprises at least one layer of steps; the horizontal surface of the at least one layer of steps is a wave-shaped surface; and the contour of the wave-shaped surface is a periodic wave in the direction parallel to the vertical surface of the steps. The collision-proof bulkhead provided by the application can effectively reduce the wave energy when the bulkhead is broken by arranging the step structure on the collision-proof bulkhead and arranging the horizontal surface of the steps as a wave-shaped surface, and can weaken and relieve the impact of the ocean waves on the collision-proof bulkhead by utilizing the principle of the Bragg resonance phenomenon in fluid mechanics, so that the wave-shaped horizontal surface can interact with the ocean waves to generate reflected waves, and the ship can continue to sail stably.

Description

Technical Field

[0001] This application relates to the field of shipbuilding, and in particular to a collision bulkhead and a ship. Background Technology

[0002] According to ship design specifications, all hulls must be equipped with at least one collision bulkhead. Collision bulkheads, also known as forecastle bulkheads, are generally located aft of the forecastle. Collision bulkheads have higher strength requirements than other watertight bulkheads to ensure that if the bow is damaged, the rest of the ship will not be damaged and flooded. In harsh environments, existing collision bulkheads are insufficient to resist the impact of seawater, reducing the hull's shock resistance and stability. Summary of the Invention

[0003] The purpose of this application is to provide a collision bulkhead and a ship that can effectively reduce wave energy during a breach, thereby reducing and mitigating the impact of ocean waves on the collision bulkhead and improving the ship's impact resistance and stability.

[0004] This application provides a crash barrier, wherein the water-facing surface of the crash barrier is provided with a stepped structure, and the stepped structure includes at least one step.

[0005] At least one of the steps has a wavy surface in its transverse direction; and in the direction parallel to the vertical surface of the step, the outline of the wavy surface is a periodic waveform.

[0006] In the above technical solution, the propagation direction of the periodic waveform is the length direction of the transverse plane, and the length direction of the transverse plane is parallel to the vertical plane;

[0007] Along the propagation direction of the periodic waveform, the wavelength and amplitude of the periodic waveform are constant.

[0008] In the above technical solution, the step structure further includes multiple steps, and the transverse surface of each step is a wavy surface.

[0009] In the above technical solution, the width direction of the horizontal surface is perpendicular to the vertical surface; from the bottom to the top of the step structure, the width of the horizontal surface of each step decreases sequentially.

[0010] In the above technical solution, the height of each step is the same.

[0011] In the above technical solution, the periodic waveform is further defined as a trapezoidal waveform.

[0012] In the above technical solution, the periodic waveform is further described as a triangular waveform.

[0013] In the above technical solution, the inflection point of the periodic waveform is further characterized by a circular arc transition.

[0014] In the above technical solution, the periodic waveform is further defined as a sine waveform.

[0015] This application also provides a vessel including the anti-collision bulkhead described above.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] The anti-collision bulkhead provided in this application, by setting a stepped structure in the anti-collision bulkhead and setting the transverse surface of the steps as a wave-shaped surface, utilizes the principle of Bragg resonance in fluid mechanics to enable the wave-shaped transverse surface to interact with ocean waves to generate reflected waves, effectively reducing the wave energy when the bulkhead is breached, thereby weakening and mitigating the impact force of ocean waves on the anti-collision bulkhead, and thus better maintaining the ship's continued stable navigation.

[0018] This application also provides a vessel, including the anti-collision bulkhead described in the above scheme. Based on the above analysis, it is clear that the vessel also possesses the aforementioned beneficial effects, which will not be elaborated upon further here. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A first structural schematic diagram of the anti-collision bulkhead provided in this application;

[0021] Figure 2 This is a schematic diagram of the second structure of the anti-collision bulkhead provided in this application;

[0022] Figure 3 This is a first structural schematic diagram of the trapezoidal waveform provided in this application;

[0023] Figure 4 This is a schematic diagram of the second structure of the trapezoidal waveform provided in this application;

[0024] Figure 5 A schematic diagram of the sine waveform provided in this application.

[0025] In the diagram: 101 - horizontal plane; 102 - vertical plane; 103 - periodic waveform; 104 - trapezoidal waveform; 105 - sine waveform. Detailed Implementation

[0026] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example 1

[0030] See Figures 1 to 5 As shown, the anti-collision bulkhead provided in this application has a stepped structure on its water-facing surface, and the stepped structure includes at least one step. The transverse surface 101 of the at least one step is a wavy surface; in the direction parallel to the vertical surface 102 of the step (see... Figure 2 As shown), the outline of the wavy surface is a periodic waveform 103.

[0031] Specifically, firstly, this application sets the crash barrier in a stepped form, which has the following advantages:

[0032] I. Adapting to ship design and structural requirements:

[0033] 1. Space optimization: In order to optimize space utilization in ship design, stepped structures are set on the collision bulkhead. This allows for relatively more space for other equipment or compartments inside the ship on the back of the collision bulkhead without sacrificing structural strength.

[0034] 2. Equipment Layout: Some ships require specific equipment or pipelines to be placed near the collision bulkhead. By setting up a stepped structure, these devices can be installed and maintained within the space enclosed by the steps, while avoiding damage to the structural integrity of the collision bulkhead.

[0035] II. Improve ship safety and stability:

[0036] 1. Enhanced Local Strength: By incorporating stepped structures into the collision bulkhead, additional reinforcements can be added to localized areas, such as increasing plate thickness or installing reinforcing ribs. These reinforcements enhance the local strength of the collision bulkhead, enabling it to maintain its integrity under concentrated impacts, preventing the expansion of localized damage, and improving the overall safety of the ship.

[0037] 2. Improved Water Flow Distribution: A stepped design for collision bulkheads can improve water flow distribution, reducing resistance and impact on the ship, thereby enhancing stability and navigation efficiency. Although collision bulkheads are primarily located inside the hull, their position and shape can affect the overall streamlined shape of the hull, especially at the bow. Optimizing the design of collision bulkheads ensures that the hull maintains structural strength while also possessing good streamlinedness, thus contributing to improved water flow distribution.

[0038] Furthermore, this application sets the transverse surface 101 of the step as a wave-shaped surface. After the hull is breached, water flows into the hull from the breach and impacts the crash barrier. Based on the principle of Bragg resonance in fluid mechanics, the wave-shaped transverse surface 101 can interact with ocean waves to generate reflected waves, effectively reducing the wave energy during breach, thereby weakening and mitigating the impact of ocean waves on the crash barrier, and thus better maintaining the ship's continued stable navigation.

[0039] In the optional solutions of this embodiment, such as Figure 2 As shown, the length direction of the transverse surface 101 is the width direction of the hull. Figure 2 As shown in direction A), the length of the transverse surface 101 needs to be set according to the width of different positions on the hull. The propagation direction of the periodic waveform 103 is the length direction of the transverse surface 101, and the length direction of the transverse surface 101 is parallel to the vertical surface 102. When seawater impacts the anti-collision bulkhead, the transverse surface 101 is more likely to resonate with the ocean waves.

[0040] Furthermore, along the propagation direction of the periodic waveform 103, the wavelength and amplitude of the periodic waveform 103 are constant, so that the effect of the transverse surface 101 on the interaction with ocean waves is more balanced, thereby improving the uniformity of shock resistance at various points.

[0041] Specifically, depending on the height of the crash barrier, a stepped structure with one or more steps can be installed.

[0042] In an optional embodiment, the step structure includes multiple steps, and the transverse surface 101 of each step is a wavy surface.

[0043] Optionally, each step has the same height.

[0044] In this embodiment, specifically as follows: Figure 1 and Figure 2 As shown in the figure, the step structure includes two steps, and the transverse surface 101 of both steps is a wave-shaped surface. The transverse surface 101 of the lower step can resist the impact of seawater on the lower part of the hull, and the transverse surface 101 of the lower step can resist the impact of seawater on the upper part of the hull, thereby better maintaining the stable navigation of the ship.

[0045] Furthermore, since the transverse surface 101 of the lower step is closer to the bow, and the hull width at the bow is narrower, the length of the transverse surface 101 of the corresponding lower step is ( Figure 2 The C in the middle is shorter; the transverse surface 101 of the upper step is closer to the middle of the hull, where the hull width ( Figure 2 D) is slightly wider than the hull width at the bow, and the length of the transverse surface 101 of the corresponding upper step is longer (i.e., D > C).

[0046] In this embodiment, the width direction of the transverse surface 101 is perpendicular to the vertical surface 102; from the bottom to the top of the step structure, the width of the transverse surface 101 of each step decreases sequentially.

[0047] In this embodiment, such as Figure 1 As shown in the figure, for the two layers of steps, the width of the transverse surface 101 of the upper step ( Figure 1 The E in the designation is relatively wide, meaning the area of ​​the wave-shaped surface is larger, resulting in better wave dissipation. Considering the overall strength requirements of the crash barrier, the width of the transverse surface 101 of the lower step is set to ( Figure 1 The F in the design, and F < E), is relatively narrow to make the crash barrier less prone to deformation when subjected to impact.

[0048] Example 2

[0049] The anti-collision bulkhead in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0050] In the optional schemes of this embodiment, see [link to relevant documentation]. Figure 3 As shown, the periodic waveform 103 is a trapezoidal waveform 104. The trapezoidal waveform 104 has an overall wave-like undulating state, which can interact with ocean waves to generate reflected waves to reduce the wave energy when the hull is damaged, and it is easy to process and manufacture.

[0051] In this embodiment, the periodic waveform 103 is a triangular waveform. The triangular waveform has an overall wave-like undulating state, which can interact with ocean waves to generate reflected waves to reduce the wave energy when the hull is damaged, and it is easy to process and manufacture.

[0052] In an optional embodiment, further see... Figure 4 As shown, setting the inflection point of the trapezoidal waveform 104 with a rounded transition can avoid the formation of sharp corner structures on the transverse surface 101 of the step, making the overall surface smoother. When the transverse surface 101 interacts with ocean waves, it can achieve a relatively good resonance effect and better reduce the wave energy during the breach.

[0053] Similarly, setting the inflection point of the triangular waveform with a rounded transition can avoid the formation of sharp corner structures on the transverse surface 101 of the step, making the overall surface smoother. When the transverse surface 101 interacts with ocean waves, it can achieve a relatively good resonance effect and better reduce the wave energy during the breach.

[0054] In this embodiment, the periodic waveform 103 is a sine wave 105. For example... Figure 5 As shown, a rectangular coordinate system is established on the plane parallel to the vertical plane 102 of the step. x represents the value of the collision bulkhead varying along the ship's width (i.e., the length direction of the transverse plane 101 varies vertically), and y represents the height value of the waveform along the corresponding width. The function corresponding to the sine waveform 105 is... Where L is the wavelength of the sine wave 105, and H is the amplitude of the sine wave 105.

[0055] Compared to the trapezoidal waveform 104 and the triangular waveform of the transverse surface 101, the transverse surface 101 with a sinusoidal waveform 105 is relatively more difficult to manufacture. However, the transverse surface 101 is a smooth sinusoidal surface, which can achieve a better resonance effect when the transverse surface 101 interacts with ocean waves. The reflected waves generated can more effectively reduce the wave energy when the hull is damaged, thereby weakening and mitigating the impact of ocean waves on the collision bulkhead, and thus better maintaining the ship's continued stable navigation.

[0056] Example 3

[0057] Embodiment 3 of this application provides a ship that includes the anti-collision bulkhead of any of the above embodiments, and thus has all the beneficial technical effects of the anti-collision bulkhead of any of the above embodiments, which will not be repeated here.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A collision protection bulkhead, characterized in that, The water-facing surface of the anti-collision bulkhead is provided with a stepped structure, and the stepped structure includes at least one step. At least one of the steps has a wavy surface in its transverse direction; in the direction parallel to the vertical surface of the step, the outline of the wavy surface is a periodic waveform. The step structure includes multiple steps, and the transverse surface of each step is a wavy surface; The width direction of the horizontal surface is perpendicular to the vertical surface; from the bottom to the top of the stepped structure, the width of the horizontal surface of each step decreases sequentially.

2. The anti-collision bulkhead according to claim 1, characterized in that, The propagation direction of the periodic waveform is the length direction of the transverse plane, and the length direction of the transverse plane is parallel to the vertical plane; Along the propagation direction of the periodic waveform, the wavelength and amplitude of the periodic waveform are constant.

3. The anti-collision bulkhead according to claim 1, characterized in that, The height of each step is the same.

4. The anti-collision bulkhead according to claim 1, characterized in that, The periodic waveform is a trapezoidal waveform.

5. The anti-collision bulkhead according to claim 1, characterized in that, The periodic waveform is a triangular waveform.

6. The anti-collision bulkhead according to claim 4 or 5, characterized in that, The inflection point of the periodic waveform is a circular arc transition.

7. The anti-collision bulkhead according to claim 1, characterized in that, The periodic waveform is a sine wave.

8. A ship, characterized in that, Includes the anti-collision bulkhead as described in any one of claims 1 to 7.

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