Method and device for determining total impact energy of ship, electronic equipment and storage medium

Abstract

The invention provides a method and device for determining total impact energy of a ship, electronic equipment and a storage medium, and belongs to the technical field of coast engineering.The method comprises the steps that the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the ship full-load draught, the average draught corresponding to the ship loading degree and the ship width are obtained; based on the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the ship full-load draft, the average draft corresponding to the ship loading degree and the ship width, the total impact energy of the ship is determined. According to the method, the purpose of calculating the total impact energy of the ship is achieved by comprehensively considering the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full-load draft of the ship, the average draft corresponding to the loading degree of the ship, the ship width and other related factors.

Description

Technical Field

[0001] The present invention relates to the technical field of coastal engineering, and in particular to a method, device, electronic equipment and storage medium for determining the total impact energy of a ship. Background Art

[0002] During coastal engineering operations, ships may collide. If the total energy of the ship collision is too large, there may be a risk of capsizing and sinking. In order to avoid the capsizing and sinking of ships due to collisions, the total energy of the ship collision needs to be calculated. Then, the factors affecting the total energy of the ship collision involve various aspects, and there is currently a lack of calculation methods for the collision energy of oil tankers of various tonnages. Summary of the invention

[0003] In view of this, it is necessary to provide a method, device, electronic device and storage medium for determining the total impact energy of a ship, so as to achieve the purpose of calculating the total impact energy of the ship.

[0004] In order to solve the above problems, the present invention provides a method for determining the total impact energy of a ship, comprising: Obtain the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width; The total impact energy of the ship is determined based on the ship's current displacement, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width.

[0005] In a possible implementation, the total impact energy of the ship is calculated as follows:

[0006] in, E represents the total impact energy of the ship, H Using characteristic wave height parameters, T is the average wave period, L is the wavelength corresponding to the average period of the wave, W is the displacement corresponding to the full load of the ship, D The ship's fully loaded draft, D 0 is the average draft corresponding to the degree of loading of the ship, B For the width of the ship, K E and β E Set parameters for different settings.

[0007] In a possible implementation, when the ship is an oil tanker and has a full load of 150,000-300,000 tons, K E= 0.108; when the ship is an oil tanker with a full load of 10,000-50,000 tons, K E = 0.052.

[0008] In a possible implementation, when the ship is an LNG ship, K E = 0.195.

[0009] In a possible implementation, when the ship is a bulk carrier, K E = 0.13.

[0010] In a possible implementation, when the ship is a barge with a full load of 12,000 tons, K E = 0.517 。

[0011] In a possible implementation, when the ship is an oil tanker, an LNG ship or a bulk carrier, β E =2.964; when the ship is a barge with a full load of 12,000 tons, β E =2.593.

[0012] On the other hand, the present invention also provides a device for determining the total impact energy of a ship, comprising: The acquisition module is used to obtain the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the loading degree of the ship, and the ship width; The impact energy calculation module is used to determine the total impact energy of the ship based on the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the fully loaded draft of the ship, the average draft corresponding to the loading degree of the ship, and the ship width.

[0013] On the other hand, the present invention also provides an electronic device, including a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps of the method for determining the total impact energy of a ship as described in any one of the above.

[0014] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the method for determining the total impact energy of a ship as described in any one of the above items are implemented.

[0015] The beneficial effect of adopting the above-mentioned implementation method is as follows: the method, device, electronic device and storage medium for determining the total impact energy of a ship provided by the present invention comprehensively consider relevant factors such as the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the ship's loading degree, and the ship's width; based on the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the ship's loading degree, and the ship's width, the total impact energy of the ship is determined, thereby achieving the purpose of calculating the total impact energy of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A flow chart of an embodiment of a method for determining the total impact energy of a ship provided by the present invention; Figure 2 A principle block diagram of an embodiment of a device for determining the total impact energy of a ship provided by the present invention; Figure 3 A schematic structural diagram of an embodiment of an electronic device provided by the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] In the description of the embodiments of the present application, unless otherwise specified, “plurality” means two or more than two.

[0020] The terms "including" and "having" and any variations thereof in the embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules not clearly listed or inherent to these processes, methods, products or equipment.

[0021] The naming or numbering of the steps in the embodiments of the present invention does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0022] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The present invention provides a method, device, electronic device and storage medium for determining the total impact energy of a ship, which are described below respectively.

[0024] like Figure 1 As shown, the present invention provides a method for determining the total impact energy of a ship, comprising: S101, obtaining the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the loading degree of the ship, and the ship width; S102, determining the total impact energy of the ship based on the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the fully loaded draft of the ship, the average draft corresponding to the loading degree of the ship, and the width of the ship.

[0025] It is understandable that in order to establish a calculation method for the impact energy of oil tankers of various tonnages, the test results of the total impact energy of the ship were analyzed. The results showed that the total impact energy of the ship increases with the increase of wave height and period. Generally speaking, the impact energy of the ship is related to wave elements, ship draft, ship relative width, etc. In some embodiments, the total impact energy of the ship is calculated as follows:

[0026] in, E represents the total impact energy of the ship, H Using characteristic wave height parameters,T is the average wave period, L is the wavelength corresponding to the average period of the wave, W is the displacement corresponding to the full load of the ship, D The ship's fully loaded draft, D 0 is the average draft corresponding to the degree of loading of the ship, B For the width of the ship, K E and β E Set parameters for different settings.

[0027] In some embodiments, when the vessel is a tanker and has a full load of 150,000-300,000 tons, K E = 0.108; when the ship is an oil tanker with a full load of 10,000-50,000 tons, K E = 0.052.

[0028] In some embodiments, when the vessel is an LNG vessel, K E = 0.195.

[0029] When the vessel is a bulk carrier, K E = 0.13.

[0030] When the vessel is a barge with a full load of 12,000 tons, K E = 0.517 。

[0031] When the vessel is an oil tanker, LNG carrier or bulk carrier, β E =2.964; when the ship is a barge with a full load of 12,000 tons, β E =2.593.

[0032] In some embodiments, under the mooring conditions considered, the total impact energy of the ship can be considered to satisfy the following relationship:

[0033] In the formula, H Using the characteristic wave height parameter H4%, T is the average period of the waves, L is the wavelength corresponding to the average period, W is the displacement corresponding to the full load of the ship, Dand D 0 are the full load draft and the average draft corresponding to the ship's loading degree, B For the width of the ship, K and β is the parameter to be determined. The wavelength is solved by the wave dispersion equation, that is:

[0034] Since the ship generally moves away from the dock when the wave is following it, the impact of the ship on the dock is very small, so only the impact energy of the ship when the wave is crossing is analyzed.

[0035] Results of total impact energy test on oil tanker: Dimensionless total energy Enon under different working conditions of oil tanker mooring test under transverse waves The correlation with the change of relative ship width L / B is relatively good, and the relationship can be fitted in the form of a power exponential function, thereby analyzing and obtaining the calculation formula for the total impact energy of 300,000-ton, 150,000-ton, 50,000-ton and 10,000-ton oil tankers, namely:

[0036]

[0037]

[0038]

[0039] In the formula, H Using characteristic wave height parameters H 4 %, T is the average period of the waves, L is the wavelength corresponding to the average period, W is the displacement corresponding to the full load of the ship, D and D 0 are the full load draft and the average draft corresponding to the ship's loading degree, B For the width of the ship, K and β It can be seen that for oil tankers of different tonnages and different combinations, the trend of the impact energy of ships with the relative ship width is basically the same.

[0040] In some embodiments, the total impact energy calculation formula for 266,000 cubic meters, 170,000 cubic meters and 80,000 cubic meters LNG ships is given, namely:

[0041]

[0042]

[0043] In the formula, H Using characteristic wave height parameters H 4%, T is the average period of the waves, L is the wavelength corresponding to the average period, W is the displacement corresponding to the full load of the ship, D and D 0 are the full load draft and the average draft corresponding to the ship's loading degree, B For the width of the ship, K and β It can also be seen that the change trend of ship impact energy with relative ship width is basically the same for ships of different sizes and different combinations.

[0044] In general, similar to the results for oil tankers, when waves of different periods act, the results calculated by the fitting formula are also greater than those calculated by the standard formula. At the same time, regardless of the results calculated by the fitting formula or the standard formula, the impact energy of LNG ships under different working conditions is also quite different.

[0045] Results of the total energy test on bulk carriers and barges: Under the action of transverse waves, using the same method, the dimensionless total energy of bulk carriers and barges under different working conditions is The correlation with the change of relative ship width L / B is relatively good, and the relationship can also be fitted in the form of a power exponential function. The calculation formula for the total impact energy of 300,000-ton, 150,000-ton, 50,000-ton, 10,000-ton bulk carriers and 12,000-ton barges is as follows:

[0046]

[0047] In the formula, H Using characteristic wave height parameters H 4%, T is the average period of the waves, L is the wavelength corresponding to the average period, W is the displacement corresponding to the full load of the ship, D and D 0 are the full load draft and the average draft corresponding to the ship's loading degree, B For the width of the ship, K and β is the parameter that needs to be determined. Similar to the above-mentioned ship type results, for bulk carriers of different tonnages and different combinations, the trend of the impact energy of the ship with the relative ship width is basically the same.

[0048] Calculation method of total ship impact energy: Based on the test results, the calculation formulas for the ship impact energy under different working conditions of each ship type were obtained. The results show that the parameters affecting the ship impact energy are consistent, and the formula forms satisfied are consistent. For ease of reference, the formula is rewritten in the following form, namely:

[0049] In the formula, H Using characteristic wave height parameters H 4%, T is the average period of the waves, L is the wavelength corresponding to the average period, W is the displacement corresponding to the full load of the ship, D and D 0 are the full load draft and the average draft corresponding to the ship's loading degree, B is the ship width, coefficient K E and index β E as a parameter.

[0050] In order to obtain a unified impact energy calculation formula for each ship type, the coefficients in the ship impact energy calculation formula for different ship types and different working conditions are examined. K E and index β E， It can be seen that the results of different ship types are somewhat different, but the results of the same ship type and different working conditions are basically the same. K E， The coefficients for the two types of larger tonnage oil tankers, namely 300,000-ton and 150,000-ton oil tankers, are K E The coefficients of the two smaller tonnage ships, namely the 50,000-ton and 10,000-ton oil tankers, are K E Basically the same; coefficients of three types of LNG ships K E Basically the same; unlike oil tankers, the coefficients of the four tonnage bulk carriers are K E Although there is a certain degree of discreteness, the fitting index of the three ship types with different tonnages is β E The results are consistent, and their average value can be taken as the final unified result, thus obtaining a calculation formula for calculating the ship impact energy. K E and index β EThe values ​​are taken according to Table 1. It should be noted that for the 12,000-ton barge, since the test only considered two working conditions, the average value is taken as the parameter value of the ship.

[0051] Table 1: Coefficients in the formula for calculating different ship impact energies K E and index β E Value

[0052] like Figure 2 As shown, the present invention also provides a device 200 for determining the total impact energy of a ship, comprising: The acquisition module 201 is used to acquire the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the loading degree of the ship, and the ship width; The impact energy calculation module 202 is used to determine the total impact energy of the ship based on the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the ship's loading degree, and the ship's width.

[0053] The device for determining the total impact energy of a ship provided in the above embodiment can implement the technical solution described in the above embodiment of the method for determining the total impact energy of a ship. The specific implementation principles of the above modules or units can refer to the corresponding contents in the above embodiment of the method for determining the total impact energy of a ship, which will not be repeated here.

[0054] like Figure 3 As shown, the present invention also provides an electronic device 300. The electronic device 300 includes a processor 301, a memory 302 and a display 303. Figure 3 Only some components of the electronic device 300 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0055] In some embodiments, the memory 302 may be an internal storage unit of the electronic device 300, such as a hard disk or memory of the electronic device 300. In other embodiments, the memory 302 may also be an external storage device of the electronic device 300, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the electronic device 300.

[0056] Furthermore, the memory 302 may include both an internal storage unit of the electronic device 300 and an external storage device. The memory 302 is used to store application software installed in the electronic device 300 and various data.

[0057] In some embodiments, the processor 301 may be a central processing unit (CPU), a microprocessor or other data processing chip, used to run program codes or process data stored in the memory 302, such as the method for determining the total impact energy of a ship in the present invention.

[0058] In some embodiments, the display 303 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 303 is used to display information on the electronic device 300 and to display a visual user interface. The components 301-303 of the electronic device 300 communicate with each other via a system bus.

[0059] In some embodiments of the present invention, when the processor 301 executes the ship impact total energy determination program in the memory 302, the following steps may be implemented: Obtain the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width; The total impact energy of the ship is determined based on the ship's current displacement, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width.

[0060] It should be understood that: when the processor 301 executes the ship's total impact energy determination program in the memory 302, in addition to the above functions, other functions may also be implemented. For details, please refer to the description of the corresponding method embodiment above.

[0061] Furthermore, the embodiment of the present invention does not specifically limit the type of the electronic device 300 mentioned, and the electronic device 300 may be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of portable electronic devices include but are not limited to portable electronic devices equipped with IOS, Android, Microsoft or other operating systems. The above-mentioned portable electronic device may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 300 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0062] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the method for determining the total impact energy of a ship provided by the above methods, the method comprising: Obtain the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width; The total impact energy of the ship is determined based on the ship's current displacement, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width.

[0063] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0064] The above is a detailed introduction to the method, device, electronic device and storage medium for determining the total impact energy of a ship provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for determining the total impact energy of a ship, characterized in that: include: Obtain the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width; The total impact energy of the ship is determined based on the ship's current displacement, the average wave period, the wavelength corresponding to the average wave period, the ship's fully loaded draft, the average draft corresponding to the ship's loading degree, and the ship's width.

2. The method for determining the total impact energy of a ship according to claim 1, characterized in that: The calculation formula for the total impact energy of a ship is: in, E represents the total impact energy of the ship, H Using characteristic wave height parameters, T is the average wave period, L is the wavelength corresponding to the average period of the wave, W is the displacement corresponding to the full load of the ship, D The ship's fully loaded draft, D 0 is the average draft corresponding to the degree of loading of the ship, B For the width of the ship, K E and β E For different setting parameters.

3. The method for determining the total impact energy of a ship according to claim 2, characterized in that: When the ship is an oil tanker with a full load of 150,000-300,000 tons, K E = 0.108; when the ship is an oil tanker with a full load of 10,000-50,000 tons, K E = 0.

052.

4. The method for determining the total impact energy of a ship according to claim 2, characterized in that: When the ship is an LNG carrier, K E = 0.

195.

5. The method for determining the total impact energy of a ship according to claim 2, characterized in that: When the vessel is a bulk carrier, K E = 0.

13.

6. The method for determining the total impact energy of a ship according to claim 2, characterized in that: When the vessel is a barge with a full load of 12,000 tons, K E = 0.

517.

7. The method for determining the total impact energy of a ship according to claim 2, characterized in that: When the vessel is an oil tanker, LNG carrier or bulk carrier, β E =2.964; When the vessel is a barge with a full load of 12,000 tons, β E =2.

593.

8. A device for determining the total impact energy of a ship, characterized in that: include: The acquisition module is used to obtain the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the full load draft of the ship, the average draft corresponding to the loading degree of the ship, and the ship width; The impact energy calculation module is used to determine the total impact energy of the ship based on the current displacement of the ship, the average wave period, the wavelength corresponding to the average wave period, the fully loaded draft of the ship, the average draft corresponding to the loading degree of the ship, and the ship width.

9. An electronic device, characterized in that: comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps of the method for determining the total impact energy of a ship as described in any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for determining the total impact energy of a ship according to any one of claims 1 to 7 are implemented.

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