Anti-collision bulkhead and ship

Abstract

The invention relates to the field of ship manufacturing, in particular to an anti-collision bulkhead and a ship. A step structure is arranged on the upstream face of the anti-collision bulkhead and comprises at least one step. The transverse surface of at least one layer of step is a wave-shaped surface; in the direction parallel to the vertical face of the step, the outline of the wavy face is in a periodic waveform shape. According to the anti-collision bulkhead, the step structure is arranged on the anti-collision bulkhead, the transverse face of the step is arranged to be the wavy face, the principle of the Bragg resonance phenomenon in fluid mechanics is utilized, the wavy transverse face can interact with ocean waves to generate reflected waves, wave energy generated when the bulkhead is broken is effectively reduced, and therefore the anti-collision bulkhead can be used for preventing collision. Therefore, the impact force of ocean waves on the anti-collision bulkhead is weakened and relieved, and the ship can be better kept to continuously and stably sail.

Description

Technical Field

[0001] The present application relates to the field of shipbuilding, and in particular to an anti-collision bulkhead and a ship. Background Art

[0002] According to the specifications of ship design, all hulls need to be equipped with at least one collision bulkhead. The collision bulkhead is also called the forepeak bulkhead, which is generally located at the rear end of the forepeak bulkhead. The collision bulkhead has a higher strength requirement than other watertight bulkheads, so that after the bow is damaged, the rest of the ship will not be damaged and flooded. In harsh environments, the existing collision bulkheads are not able to resist the impact of seawater, which reduces the impact resistance and stability of the hull. Summary of the invention

[0003] The purpose of the present application is to provide a collision bulkhead and a ship, which can effectively reduce the wave energy when the bulkhead is breached, thereby reducing and alleviating the impact force of ocean waves on the collision bulkhead and improving the impact resistance and stability of the hull.

[0004] The present application provides a collision bulkhead, wherein a water-facing surface of the collision bulkhead is provided with a step structure, and the step structure includes at least one layer of steps;

[0005] The transverse surface of at least one layer of the steps is a wavy surface; in a direction parallel to the vertical surface of the steps, the contour of the wavy surface is a periodic waveform.

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

[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, further, the step structure includes multiple layers of steps, and the transverse surface of each layer of the steps is a wavy surface.

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

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

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

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

[0013] In the above technical solution, further, the inflection point of the periodic waveform transitions in an arc shape.

[0014] In the above technical solution, further, the periodic waveform is a sinusoidal waveform.

[0015] The present application also provides a ship, comprising the anti-collision bulkhead described in the above solution.

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

[0017] The collision bulkhead provided by the present application is provided with a step structure on the collision bulkhead, and the lateral surface of the step is set as a wavy surface. The principle of the Bragg resonance phenomenon in fluid mechanics is utilized to enable the wavy lateral surface to interact with the ocean waves to generate reflected waves, thereby effectively reducing the wave energy when the bulkhead is breached, thereby reducing and alleviating the impact force of the ocean waves on the collision bulkhead, and thus better maintaining the continued stable navigation of the ship.

[0018] The present application also provides a ship, comprising the anti-collision bulkhead described in the above solution. Based on the above analysis, it can be seen that the ship also has the above beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0021] Figure 2 A second structural schematic diagram of the collision bulkhead provided in this application;

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

[0023] Figure 4 A second structural schematic diagram of a trapezoidal waveform provided by the present application;

[0024] Figure 5 This is a schematic diagram of the structure of the sinusoidal waveform provided in this application.

[0025] In the figure: 101 - horizontal surface; 102 - vertical surface; 103 - periodic waveform; 104 - trapezoidal waveform; 105 - sinusoidal waveform. DETAILED DESCRIPTION

[0026] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Embodiment 1

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

[0031] Specifically, firstly, the present application sets the collision bulkhead in the form of steps, which has the following advantages:

[0032] 1. Adapt to the requirements of ship design and structure:

[0033] 1. Space optimization: In ship design, in order to optimize space utilization, a step structure is set on the collision bulkhead. In this way, relatively more space can be freed up on the back of the collision bulkhead for other equipment or cabins inside the ship without sacrificing structural strength.

[0034] 2. Equipment layout: Some ships need to arrange specific equipment or pipelines near the collision bulkhead. By setting up a step structure, these equipment can be installed and maintained in the space enclosed by the steps, while avoiding damage to the structural integrity of the collision bulkhead.

[0035] 2. Improve ship safety and stability:

[0036] 1. Improve local strength: By setting a step structure on the collision bulkhead, additional reinforcement structures can be added in local areas, such as increasing the plate thickness, setting stiffeners, etc. These reinforcement structures can improve the local strength of the collision bulkhead, so that it can maintain its integrity when subjected to concentrated impact, prevent local damage from expanding, and improve the overall safety of the ship.

[0037] 2. Improve water flow distribution: The stepped design of the collision bulkhead can improve water flow distribution, reduce the resistance or impact of water flow on the ship, and thus improve the stability and navigation efficiency of the ship. Although the collision bulkhead is mainly located inside the hull, its position and shape may affect the overall streamline of the hull exterior, especially in the bow part. By optimizing the design of the collision bulkhead, it can be ensured that the hull has a good streamline while maintaining structural strength, which helps to improve water flow distribution.

[0038] Furthermore, the present application sets the transverse surface 101 of the step as a wavy surface. After the cabin is damaged, water flows into the cabin from the damaged part and impacts the anti-collision bulkhead. Based on the principle of the Bragg resonance phenomenon in fluid mechanics, the wavy transverse surface 101 can interact with the ocean waves to generate reflected waves, effectively reducing the wave energy when the cabin is damaged, thereby reducing and alleviating the impact force of the ocean waves on the anti-collision bulkhead, and thus better maintaining the ship's continued stable navigation.

[0039] In the optional solution of this embodiment, Figure 2 As shown, the length direction of the transverse surface 101 is the width direction of the hull ( Figure 2 The length of the transverse surface 101 needs to be set according to the width of the hull at different positions. 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 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 interaction with ocean waves at various locations on the transverse surface 101 is more balanced, thereby improving the uniformity of impact resistance at various locations.

[0041] Specifically, a step structure having one step or multiple steps may be provided according to the height of the collision bulkhead.

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

[0043] Optionally, the height of each step is the same.

[0044] In this embodiment, specifically Figure 1 and Figure 2 As shown, the step structure in the figure includes two steps, and the transverse surfaces 101 of the two steps are both wavy surfaces. The transverse surface 101 of the lower step can resist the impact of seawater at the lower part of the hull, and the transverse surface 101 of the upper step can resist the impact of seawater at the upper part of the hull, thereby better maintaining the stable navigation of the ship.

[0045] In addition, 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 ( Figure 2 C) 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) in the figure is slightly wider than the hull width at the bow, and the length of the corresponding transverse surface 101 of the upper step is longer (ie D>C).

[0046] In an optional solution of 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 successively.

[0047] In this embodiment, if Figure 1 As shown, for the two steps shown in the figure, the width of the lateral surface 101 of the upper step ( Figure 1 The width of the lateral surface 101 of the lower step is set to ( Figure 1 The F in the structure and F<E) is relatively narrow so that the collision bulkhead is not easily deformed when impacted.

[0048] Embodiment 2

[0049] The anti-collision bulkhead in the second embodiment is an improvement on the above embodiment, and the technical contents disclosed in the above embodiment will not be described repeatedly, and the contents disclosed in the above embodiment also belong to the contents disclosed in the second embodiment.

[0050] In the optional solution of this embodiment, see Figure 3 As shown, the periodic waveform 103 is a trapezoidal waveform 104. The trapezoidal waveform 104 is in a wave-like undulating state as a whole, and can interact with ocean waves to generate reflected waves to reduce wave energy when the cabin is damaged, and the processing and manufacturing difficulty is low.

[0051] In an optional solution of this embodiment, the periodic waveform 103 is a triangular waveform, and the overall triangular waveform is in a wave-like undulating state, which can interact with ocean waves to generate reflected waves to reduce wave energy when the cabin is damaged, and the processing and manufacturing difficulty is low.

[0052] In the optional solution of this embodiment, further, see Figure 4 As shown, setting the inflection point arc transition of the trapezoidal waveform 104 can avoid the formation of sharp corners on the lateral surface 101 of the step, so as to make the overall surface smoother. When the lateral surface 101 interacts with the ocean waves, a relatively good resonance effect can be achieved, thereby better reducing the wave energy when the cabin is damaged.

[0053] Similarly, setting the inflection point of the triangular waveform as an arc transition can avoid the formation of sharp-angle structures on the lateral surface 101 of the step, so as to make the overall surface smoother. When the lateral surface 101 interacts with the ocean waves, a relatively good resonance effect can be achieved, thereby better reducing the wave energy when the cabin is damaged.

[0054] In an optional solution of this embodiment, the periodic waveform 103 is a sinusoidal waveform 105. Figure 5 As shown, a rectangular coordinate system is established on a plane parallel to the vertical surface 102 of the step, x is the value of the collision bulkhead changing along the ship width (i.e., the vertical change in the length direction of the transverse surface 101), and y is the height value of the waveform corresponding to the width. The function corresponding to the sine waveform 105 is Here, L is the wavelength of the sinusoidal waveform 105 , and H is the amplitude of the sinusoidal waveform 105 .

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

[0056] Embodiment 3

[0057] Embodiment 3 of the present application provides a ship, comprising the collision bulkhead of any of the above embodiments, and thus has all the beneficial technical effects of the collision bulkhead of any of the above embodiments, which will not be elaborated herein.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In addition, a person skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present application and forming different embodiments.

Claims

1. A collision bulkhead, characterized in that: The water-facing surface of the collision bulkhead is provided with a step structure, and the step structure includes at least one step; The transverse surface of at least one layer of the steps is a wavy surface; in a direction parallel to the vertical surface of the steps, the contour of the wavy surface is a periodic waveform.

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

3. The collision bulkhead according to claim 1, characterized in that: The step structure comprises multiple layers of steps, and the transverse surface of each layer of the steps is a wavy surface.

4. The collision bulkhead according to claim 3, characterized in that: The width direction of the transverse surface is perpendicular to the vertical surface; from the bottom to the top of the step structure, the width of the transverse surface of each step decreases successively.

5. The collision bulkhead according to claim 3, characterized in that: The height of each layer of the steps is the same.

6. The collision bulkhead according to claim 1, characterized in that: The periodic waveform is a trapezoidal waveform.

7. The collision bulkhead according to claim 1, characterized in that: The periodic waveform is a triangular waveform.

8. The collision bulkhead according to claim 6 or 7, characterized in that: The inflection point of the periodic waveform is a circular arc transition.

9. The collision bulkhead according to claim 1, characterized in that: The periodic waveform is a sinusoidal waveform.

10. A ship, characterized in that: Comprising a collision bulkhead as claimed in any one of claims 1 to 9.

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