Method and device for determining material and diameter of cable, electronic equipment and storage medium

Abstract

The invention provides a cable material and diameter determination method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining a target transverse movement amount range, a target mooring force range, an incident wave average period, a rolling inherent period when a ship is fully loaded, and a transverse movement amount, a mooring force and a rigidity coefficient under a standard diameter cable; based on the target transverse movement amount range, the incident wave average period, the rolling inherent period when the ship is fully loaded and the transverse movement amount and the rigidity coefficient under the standard diameter cable, the cable rigidity range meeting the target transverse movement amount range is determined; based on the target mooring force range, the incident wave average period, the rolling inherent period when the ship is fully loaded and the mooring force and the rigidity coefficient under the standard diameter mooring rope, the mooring rope rigidity range meeting the target mooring force range is determined; and determining the material and diameter required by the target cable based on the cable rigidity range. According to the invention, the purpose of selecting a more suitable mooring rope in ship mooring movement can be achieved.

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 material and diameter of a cable. Background Art

[0002] In coastal engineering, cables of different materials and diameters will directly affect the movement of moored ships. There is currently a lack of research on how to select cables of appropriate materials and diameters based on the movement of moored ships. 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 material and diameter of a cable, so as to achieve the purpose of selecting a more suitable cable during the movement of a moored ship.

[0004] In order to solve the above problems, on the one hand, the present invention provides a method for determining the material and diameter of a cable, comprising: Obtain the target lateral motion range, target mooring force range, incident wave average period, natural rolling period of the ship when fully loaded, and lateral motion, mooring force and stiffness coefficient under standard diameter cables; Based on the target transverse motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the transverse motion and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target transverse motion range is determined; Based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target mooring force range is determined; The required material and diameter of the target cable are determined based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

[0005] In one possible implementation, the cable stiffness range that satisfies the target lateral motion range is determined based on the following formula:

[0006] in, S 横移 Indicates the lateral motion within the target lateral motion range. K 1 represents the cable stiffness within the cable stiffness range that satisfies the target lateral motion range, K d75 represents the cable force under standard diameter cable, S d75 Indicates the lateral displacement under standard diameter cable, T represents the average period of the incident wave, T0 represents the natural rolling period of the ship when fully loaded, and the standard diameter is 75mm.

[0007] In one possible implementation, the cable stiffness range that meets the target mooring force range is determined based on the following formula:

[0008] in, F represents the cable stiffness within the range of cable stiffness for the target mooring force range, K 2 represents the cable stiffness within the range of cable stiffness that meets the target mooring force range, K d75 represents the cable force under standard diameter cable, F d75 represents the mooring force under standard diameter cable, T represents the average period of the incident wave, T 0 represents the natural rolling period of the ship when it is fully loaded.

[0009] In one possible implementation, the material and diameter required for the target cable are determined based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range, including: The target cable stiffness is obtained by taking the intersection of the cable stiffness range that satisfies the target lateral motion range and the cable stiffness range that satisfies the target mooring force range; Based on the target cable stiffness, determine the material and diameter required for the target cable.

[0010] In a possible implementation, based on the target cable stiffness, the required material and diameter of the target cable are determined, including: The required material and diameter of the target cable are determined based on the target cable stiffness, ship type and ship load.

[0011] In a possible implementation, the material and diameter of the target cable are determined based on the target cable stiffness, the ship type, and the ship load, including: Compare the target cable stiffness, ship type and ship load with the preset cable stiffness correspondence table to determine the material and diameter required for the target cable; The cable stiffness correspondence table includes the correspondence between different types of ships and different loads, and the cable materials and diameters.

[0012] In a possible implementation, the method for determining the cable material and diameter further includes: Obtain the standard wave height range for mooring corresponding to the current wave cycle, and determine the target mooring force range based on the standard wave height for mooring.

[0013] On the other hand, the present invention also provides a device for determining the material and diameter of a cable, comprising: The acquisition module is used to obtain the target transverse motion range, the target mooring force range, the average period of incident waves, the natural period of rolling when the ship is fully loaded, and the transverse motion, mooring force and stiffness coefficient under the standard diameter cable; A first stiffness calculation module is used to determine a cable stiffness range that meets the target lateral motion range based on the target lateral motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the lateral motion and stiffness coefficient under the standard diameter cable; The second stiffness calculation module is used to determine the cable stiffness range that meets the target mooring force range based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable; The material and diameter determination module is used to determine the material and diameter required for the target cable based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

[0014] 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 material and diameter of the cable as described in any one of the above.

[0015] On the other hand, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method for determining the material and diameter of the cable as described in any one of the above items are implemented.

[0016] The beneficial effects of adopting the above implementation mode are as follows: the method, device, electronic device and storage medium for determining the cable material and diameter provided by the present invention, the present invention finds through experiments that different cable materials and diameters correspond to the motion of the moored ship and the mooring force of the moored ship. Therefore, the present invention determines the cable stiffness range that meets the target lateral motion range through the target lateral motion range, the average period of incident waves, the natural period of roll when the ship is fully loaded, and the lateral motion and stiffness coefficient under the standard diameter cable; based on the target mooring force range, the average period of incident waves, the natural period of roll when the ship is fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target mooring force range is determined; based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range, the material and diameter required for the target cable are determined, so as to achieve the purpose of selecting a more suitable cable in the motion of the moored ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 A flow chart of an embodiment of a method for determining the material and diameter of a cable provided by the present invention; Figure 2 The principle block diagram of the device for determining the material and diameter of the cable 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

[0019] 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.

[0020] In the description of the embodiments of the present application, unless otherwise specified, “plurality” means two or more than two.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The present invention provides a method, device, electronic device and storage medium for determining the material and diameter of a cable, which are described below respectively.

[0025] like Figure 1 As shown, the present invention provides a method for determining the material and diameter of a cable, comprising: S101, obtaining a target lateral motion range, a target mooring force range, an incident wave average period, a natural rolling period of a fully loaded ship, and a lateral motion, mooring force and stiffness coefficient under a standard diameter cable; S102, determining a cable stiffness range that meets the target lateral motion range based on the target lateral motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the lateral motion and stiffness coefficient of the standard diameter cable; S103, determining a cable stiffness range that meets the target mooring force range based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable; The required material and diameter of the target cable are determined based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

[0026] It is understandable that the target cable can be made of nylon cable or steel cable.

[0027] Comparison of test results of nylon cable and steel cable under the action of transverse waves on bulk carriers: In order to further compare the motion of moored ships under the conditions of nylon cable and steel cable, on the basis of using nylon cable with a diameter of 75 mm, experiments were carried out on 300,000-ton and 150,000-ton bulk carriers under the same mooring method and the action of transverse waves using steel cables with diameters of 40 mm and 38 mm respectively.

[0028] (1) Comparison of the amount of movement between nylon cable and steel cable Among the movements, rotation, lateral movement and longitudinal movement are greatly affected by the cable material. Due to the greater rigidity of steel cables, rotation, lateral movement and longitudinal movement are smaller when steel cables are used. However, other movements, roll, pitch and heave are less affected by the cable material. When the wave is acting, the difference in longitudinal movement when using nylon cables and steel cables is basically the same, and the steel cable is about 75% smaller than the nylon cable. The changes in rotation and lateral movement increase with the increase of movement, and the change rate of both can be expressed by the following formula: (S 尼 -S 钢 ) / S 尼 =(0.241n(S 尼 )+0.45) 100% Among them, S 尼 Indicates the rotation or lateral movement of nylon cable, S 钢 Indicates the rotation or lateral movement of the wire rope.

[0029] When using nylon cable and steel cable, the longitudinal displacement difference is basically the same, and the steel cable is about 70% smaller than the nylon cable. The changes in rotation and transverse displacement also increase with the increase in the amount of movement. The change rates of rotation and transverse displacement of a 150,000-ton ship can be expressed by the following formulas: Horizontal movement: (S 尼 -S 钢 ) / S 尼 =(0.161n(S 尼 )+0.25) 100% Rotation: (S 尼 -S 钢 ) / S 尼 =(0.161n(S 尼 )+0.56) 100% Among them, S 尼 Indicates the rotation or lateral movement of nylon cable, S 钢 Indicates the rotation or lateral movement of the wire rope.

[0030] The maximum calculation formula of the movement of 300,000-ton and 150,000-ton bulk carriers under transverse waves when using steel cables is used. According to the bulk carrier operation standards, the standard operating wave heights corresponding to different periods under different loading and unloading processes of bulk carriers are obtained as shown in Tables 1 and 2. The trend of the standard operating wave height with the period is consistent when using nylon cables and steel cables, but when using steel cables, the standard operating wave height is larger than that of nylon cables due to the increase in cable stiffness.

[0031] Table 1: When the cables of 300,000-ton bulk carriers are steel cables (40 mm diameter), the standard wave heights H4% (m) corresponding to different periods according to the standard of loading and unloading operation movement

[0032] Table 2: When the cables of 150,000-ton bulk carriers are steel cables (38mm diameter), the standard wave heights H4% (m) corresponding to different periods according to the standard of loading and unloading operation movement

[0033] (2) Comparison of cable tension between nylon cable and steel cable Due to the greater rigidity of steel cables, the tension of the cable when using steel cables is significantly greater than that when using nylon cables.

[0034] The outer envelope values ​​of all cable tensions in each working condition are fitted to obtain the maximum calculation formula for the cable tension of 300,000-ton and 150,000-ton bulk carriers using steel cables: (Steel Cable)

[0035] In the formula, H Using characteristic wave height parameters H 4%, T is the average period of the waves, L 0 is the deep water wavelength corresponding to the average period, W is the displacement corresponding to the full load of the ship, B The width of the ship.

[0036] For 40mm and 30mm diameter steel cables, their breaking forces are 1100kN and 1000kN respectively, and the control values ​​are 55% of them, namely 605kN and 550kN respectively. Based on this, it can be obtained that when 300,000-ton and 150,000-ton bulk carriers use steel cables, the mooring force corresponds to the cable tension control values ​​of 605kN and 550kN respectively, and the corresponding wave height changes with the period, as shown in Table 3 and Table 4 respectively. By comparison, it can be seen that the wave height decreases with the increase of the period. Although the control value of the steel cable is larger, the cable force generated by the ship is larger, so the wave height controlled by it is smaller than the wave height of the nylon cable.

[0037] Table 3: Standard wave heights for mooring of a 300,000-ton bulk carrier at different periods when the mooring force corresponds to the cable tension control value of 605kN (steel cable) and 440kN (nylon cable) under transverse wave action

[0038] Table 4: Standard wave heights for mooring of a 150,000-ton bulk carrier at different periods when the mooring force corresponds to the cable tension control value of 550kN (steel cable) and 440kN (nylon cable) under the action of transverse waves

[0039] Numerical simulation analysis of the influence of cable diameter and cable material on the motion of moored ships: In order to further study the influence of cable materials (nylon cables and steel cables) on the motion of moored ships, as a supplement to the project research, a mooring numerical analysis model was established for 177,000 cubic meters LNG (liquefied natural gas) ships and 150,000-ton oil tankers (as representative ship types) based on the MIKE21 mooring simulation software, and the influence of cable materials on the motion of moored ships under the action of irregular waves of different periods was studied.

[0040] (1) Introduction to numerical calculation methods The control equation of the moored ship motion in the time domain can be expressed as follows:

[0041] in M ij is the inertial recovery matrix, C ij is the hydrostatic recovery matrix, K ij is the impulse response function, m ij is the additional mass of the ship, F ej is the force due to the mooring system, F wj is the exciting force caused by the wave, x j is the six degrees of freedom component of the ship.

[0042] Wave excitation force F wj for:

[0043] in, is the velocity potential of the incident wave, ρ is the fluid density, S b For wet surfaces of ships, For its normal direction.

[0044] The expression of wave excitation force in the frequency domain is:

[0045] In the formula, is the incident pressure acting on the wet surface of the hull, n j is the normal vector of the six-degree-of-freedom motion component of the ship.

[0046] The integral equation of the ship surface is established by the boundary element method, and the ship wet boundary is discretized into control points and transformed into the following linear equations:

[0047] in, N is the number of grids divided on the ship surface, and the source intensity σ(x) is the source distribution density per unit surface area. The integral equation calculates the radiation pulse response function and uses the source distribution to solve the source intensity σ(x). T ik Expressed in integral form:

[0048] in, G(x i ;x k ) is the Green's function at the free water surface, x i and x k Represents field points and source points.

[0049] Radiation potential in the waters outside the ship The source intensity on the ship surface Reverse deduction, that is:

[0050] (2) Effect of cable diameter and material on the motion of moored vessels The effective wave height of the numerical test wave is 1.0m, and the wave spectrum still uses the JONSWAP spectrum. Based on the 75mm nylon cable of the physical model experiment, for the 177,000 cubic meter LNG ship, nylon cables with diameters of 64mm, 80mm, 88mm and 100mm are used for calculation to study the influence of cable diameter on ship motion. Based on the calculation results of the LNG ship, considering the change of nylon cable diameter, the change of cable stiffness is not significant, so only the change of cable material is studied. In terms of cable material, in addition to nylon cable and pure steel cable, a mixed material of steel cable and nylon tail cable is also used. According to OCIMF regulations, the breaking force of nylon tail cable is 25% greater than that of steel cable, so 100mm nylon cable (breaking force 1400kN) is used as the tail cable of 40mm steel cable (breaking force 1100kN). According to relevant specifications, the length of the tail cable is set to 5m and 11m respectively.

[0051] Among the six components of the moored ship's motion, the heave is mainly related to the incident wave period and wave height, and is less affected by the cable stiffness. Therefore, when the cable diameter and material are changed, the heave does not change much; the pitching motion itself is small, and the change with the cable change is not obvious; the change of cable stiffness has little effect on the roll. Therefore, only the change law of the ship's transverse, longitudinal and rotational motion is analyzed.

[0052] The transverse displacement of the 177,000-cubic-meter LNG ship decreases with the increase of the cable diameter, but the stiffness of the cable does not increase much due to the increase of the nylon cable diameter, so the reduction is not large. The transverse displacement of the 150,000-ton oil tanker and the 170,000-cubic-meter LNG ship changes significantly with the change of cable material. The transverse displacement decreases significantly after the steel cable is used. As the incident wave period increases, the reduction increases, and the maximum reduction can be about 70%. After the nylon tail cable is added to the steel cable, the transverse displacement increases due to the weakening of the cable stiffness.

[0053] The longitudinal displacement shows an overall downward trend with the increase of cable diameter, but it is not a completely monotonous change. This is mainly because the motion response of the longitudinal displacement is relatively weak when the wave is incident laterally, so the regularity of the change with the cable diameter is not strong. The change law of the longitudinal displacement with the change of cable material is basically the same as that of the transverse displacement. The longitudinal displacement has a very obvious decrease after the use of steel cable.

[0054] The change of rotation with the cable diameter is similar to the longitudinal displacement, with no particularly obvious regularity, but an overall downward trend. After the steel cable is used, the restriction effect of the bow and stern cables is enhanced, and the rotation value is significantly reduced.

[0055] By comparing the effects of changing the cable diameter and material on the amount of movement, it can be found that changing the cable material has a greater impact on the cable stiffness and a more obvious effect, especially under the action of longer period waves. Changing the cable diameter of a nylon cable has limited effect on the amount of movement, which can only be reduced by about 20% at most. However, changing the cable material, that is, changing to a steel cable, can reduce the amount of movement by about 70% at most.

[0056] (3) Effect of cable diameter and material on mooring force of moored vessels The largest mooring force among all cables is analyzed. The maximum mooring force generally occurs at the short transverse cable position. After the steel cable is used, the mooring force also increases significantly due to the significant increase in cable stiffness, up to 6 times. The use of nylon tail cable reduces the mooring force while increasing the elasticity of the cable, which can effectively prevent the cable from breaking.

[0057] In some embodiments, the cable stiffness range that meets the target lateral motion range is determined based on the following formula:

[0058] in, S 横移 Indicates the lateral motion within the target lateral motion range. K 1 represents the cable stiffness within the cable stiffness range that satisfies the target lateral motion range, K d75 represents the cable force under standard diameter cable, S d75 Indicates the lateral displacement under standard diameter cable, Trepresents the average period of the incident wave, T 0 represents the natural rolling period of the ship when fully loaded, and the standard diameter is 75mm.

[0059] In some embodiments, the cable stiffness range that meets the target mooring force range is determined based on the following formula:

[0060] in, F represents the cable stiffness within the range of cable stiffness for the target mooring force range, K 2 represents the cable stiffness within the range of cable stiffness that meets the target mooring force range, K d75 represents the cable force under standard diameter cable, F d75 represents the mooring force under standard diameter cable, T represents the average period of the incident wave, T 0 represents the natural rolling period of the ship when it is fully loaded.

[0061] In some embodiments, based on a cable stiffness range that satisfies a target lateral motion range and a cable stiffness range that satisfies a target mooring force range, determining a required material and diameter of a target cable comprises: The target cable stiffness is obtained by taking the intersection of the cable stiffness range that satisfies the target lateral motion range and the cable stiffness range that satisfies the target mooring force range; Based on the target cable stiffness, determine the material and diameter required for the target cable.

[0062] In some embodiments, based on the target cable stiffness, determining the material and diameter of the target cable includes: The required material and diameter of the target cable are determined based on the target cable stiffness, ship type and ship load.

[0063] In some embodiments, based on the target cable stiffness, the ship type, and the ship load, determining the material and diameter of the target cable includes: Compare the target cable stiffness, ship type and ship load with the preset cable stiffness correspondence table to determine the material and diameter required for the target cable; The cable stiffness correspondence table includes the correspondence between different types of ships and different loads, and the cable materials and diameters.

[0064] In some embodiments, the method for determining the material and diameter of the cable further includes: Obtain the standard wave height range for mooring corresponding to the current wave cycle, and determine the target mooring force range based on the standard wave height for mooring.

[0065] It can be understood that the relationship between the transverse movement of the moored vessel and the mooring force and the cable stiffness is: In essence, changing the cable diameter and material will affect the motion of the moored ship by changing the cable stiffness, so the two can be analyzed uniformly to obtain the corresponding rules. A fitting analysis was conducted based on the calculation results of the 170,000-cubic-meter LNG ship and the 150,000-ton oil tanker mentioned above.

[0066] In order to unify the standard, the slope corresponding to the point where each cable reaches the corresponding breaking force in the stress-deformation curve is taken, that is, the stiffness coefficient at this time is used as an indicator to measure the stiffness of the cable. For the steel cable using nylon stern cable, it is analogous to the spring series principle, and its composite stiffness coefficient is calculated using the series formula. The stiffness coefficients of various cable materials are shown in Table 5 (where NL represents nylon cable, ST represents steel cable, (5) and (11) represent additional 5m and 11m nylon tail cables). It can be seen from Table 5 that the defined stiffness coefficient increases with the increase of the diameter of the nylon cable. For the steel cable, the longer the nylon stern cable, the smaller the stiffness coefficient, and the stiffness coefficient of the pure steel cable is the largest.

[0067] Table 5: Defined cable stiffness coefficient table (KN / m)

[0068] Furthermore, the 75mm nylon cable results in the physical model experiment of this study were used as basic parameters to non-dimensionalize the transverse displacement and mooring force under different periods and different cable conditions. Considering that the transverse displacement is the main motion of the ship under the action of transverse waves, the relationship between the relative values ​​of the transverse displacement and mooring force and the dimensionless stiffness coefficient was mainly studied. The dimensionless transverse displacement decreases with the increase of the dimensionless cable stiffness coefficient, while the dimensionless mooring force increases with the increase of the dimensionless cable stiffness coefficient. This change is related to the wave period.

[0069] The following formulas are obtained by fitting the lateral displacement and mooring force respectively using the dimensionless wave period and cable stiffness coefficient as independent variables:

[0070] in, S 横移 is the lateral motion, F is the mooring force, K is the cable stiffness coefficient, S d75 , F d75 , K d75 They are the lateral displacement, mooring force and stiffness coefficient under 75mm nylon cable. T is the average period of the incident wave, T0 is the natural rolling period of the ship when fully loaded. It should be noted that the result after considering exceeding the breaking force of the cable is different from the actual situation, so the cable tension fitting only uses the simulation results less than the breaking force of the cable.

[0071] Comparison of bulk carrier transverse displacement and mooring force test values ​​and formula calculation values: In order to verify the established relationship between the transverse movement and mooring force of the moored ship and the stiffness of the cable, the transverse movement and cable tension test data of the 300,000-ton and 150,000-ton ships based on the 75mm diameter nylon cable of the above-mentioned bulk carrier are used. The calculated values ​​based on 40mm and 38mm steel cables can be obtained by formula calculation, and then compared with the corresponding test values, which can illustrate the effectiveness of the above formula. That is, in actual application, when the transverse movement and cable force of the ship under the condition of a certain cable material or diameter are known, the above formula can be used to estimate the changes in the transverse movement and cable force of the ship under the condition of changing the material or diameter of the cable. Of course, the above formula can also be used to select the appropriate cable material and corresponding diameter in combination with the target transverse movement range and the target mooring force range to prevent the cable from breaking.

[0072] like Figure 2 As shown, the present invention also provides a device 200 for determining the material and diameter of a cable, comprising: The acquisition module 201 is used to acquire the target lateral motion range, the target mooring force range, the average period of incident waves, the natural period of rolling when the ship is fully loaded, and the lateral motion, mooring force and stiffness coefficient under the standard diameter cable; The first stiffness calculation module 202 is used to determine the cable stiffness range that meets the target lateral motion range based on the target lateral motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the lateral motion and stiffness coefficient under the standard diameter cable; The second stiffness calculation module 203 is used to determine the cable stiffness range that meets the target mooring force range based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable; The material and diameter determination module is used to determine the material and diameter required for the target cable based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

[0073] The device for determining the cable material and diameter provided in the above embodiment can implement the technical solution described in the above embodiment of the method for determining the cable material and diameter. 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 cable material and diameter, which will not be repeated here.

[0074] like Figure 3As 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.

[0075] 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.

[0076] 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.

[0077] In some embodiments, the processor 301 may be a central processing unit (CPU), a microprocessor or other data processing chip, which is used to run the program code or process data stored in the memory 302, such as the method for determining the cable material and diameter in the present invention.

[0078] 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.

[0079] In some embodiments of the present invention, when the processor 301 executes the cable material and diameter determination program in the memory 302, the following steps may be implemented: Obtain the target lateral motion range, target mooring force range, incident wave average period, natural rolling period of the ship when fully loaded, and lateral motion, mooring force and stiffness coefficient under standard diameter cables; Based on the target transverse motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the transverse motion and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target transverse motion range is determined; Based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target mooring force range is determined; The required material and diameter of the target cable are determined based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

[0080] It should be understood that: when the processor 301 executes the cable material and diameter determination program in the memory 302, in addition to the above functions, other functions can also be implemented. For details, please refer to the description of the corresponding method embodiment above.

[0081] 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).

[0082] 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 perform the method for determining the material and diameter of the cable provided by the above methods, the method comprising: Obtain the target lateral motion range, target mooring force range, incident wave average period, natural rolling period of the ship when fully loaded, and lateral motion, mooring force and stiffness coefficient under standard diameter cables; Based on the target transverse motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the transverse motion and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target transverse motion range is determined; Based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target mooring force range is determined; The required material and diameter of the target cable are determined based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

[0083] 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.

[0084] The above is a detailed introduction to the method, device, electronic device and storage medium for determining the cable material and diameter provided by the present invention. Specific examples are used in this article 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 method 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 material and diameter of a cable, characterized in that: include: Obtain the target lateral motion range, target mooring force range, incident wave average period, natural rolling period of the ship when fully loaded, and lateral motion, mooring force and stiffness coefficient under standard diameter cables; Based on the target transverse motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the transverse motion and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target transverse motion range is determined; Based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable, the cable stiffness range that meets the target mooring force range is determined; The required material and diameter of the target cable are determined based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

2. The method for determining the cable material and diameter according to claim 1, characterized in that: The cable stiffness range that meets the target lateral motion range is determined based on the following formula: in, S 横移 Indicates the lateral motion within the target lateral motion range. K 1 represents the cable stiffness within the cable stiffness range that satisfies the target lateral motion range, K d75 represents the cable force under standard diameter cable, S d75 Indicates the lateral displacement under standard diameter cable, T represents the average period of the incident wave, T 0 represents the natural rolling period of the ship when fully loaded, and the standard diameter is 75mm.

3. The method for determining the cable material and diameter according to claim 1, characterized in that: The cable stiffness range that meets the target mooring force range is determined based on the following formula: in, F represents the cable stiffness within the range of cable stiffness for the target mooring force range, K 2 represents the cable stiffness within the range of cable stiffness that meets the target mooring force range, K d75 represents the cable force under standard diameter cable, F d75 represents the mooring force under standard diameter cable, T represents the average period of the incident wave, T 0 represents the natural rolling period of the ship when it is fully loaded.

4. The method for determining the cable material and diameter according to claim 1, characterized in that: Based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range, determine the material and diameter required for the target cable, including: The target cable stiffness is obtained by taking the intersection of the cable stiffness range that satisfies the target lateral motion range and the cable stiffness range that satisfies the target mooring force range; Based on the target cable stiffness, determine the material and diameter required for the target cable.

5. The method for determining the cable material and diameter according to claim 4, characterized in that: Based on the target cable stiffness, determine the material and diameter of the target cable, including: The required material and diameter of the target cable are determined based on the target cable stiffness, ship type and ship load.

6. The method for determining the cable material and diameter according to claim 5, characterized in that: Based on the target cable stiffness, ship type and ship load, determine the material and diameter of the target cable, including: Compare the target cable stiffness, ship type and ship load with the preset cable stiffness correspondence table to determine the material and diameter required for the target cable; The cable stiffness correspondence table includes the correspondence between different types of ships and different loads, and the cable materials and diameters.

7. The method for determining the material and diameter of a cable according to any one of claims 1 to 6, characterized in that: Also includes: Obtain the standard wave height range for mooring corresponding to the current wave cycle, and determine the target mooring force range based on the standard wave height for mooring.

8. A device for determining the material and diameter of a cable, characterized in that: include: The acquisition module is used to obtain the target transverse motion range, the target mooring force range, the average period of incident waves, the natural period of rolling when the ship is fully loaded, and the transverse motion, mooring force and stiffness coefficient under the standard diameter cable; A first stiffness calculation module is used to determine a cable stiffness range that meets the target lateral motion range based on the target lateral motion range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the lateral motion and stiffness coefficient under the standard diameter cable; The second stiffness calculation module is used to determine the cable stiffness range that meets the target mooring force range based on the target mooring force range, the average period of incident waves, the natural rolling period of the ship when fully loaded, and the mooring force and stiffness coefficient under the standard diameter cable; The material and diameter determination module is used to determine the material and diameter required for the target cable based on the cable stiffness range that meets the target lateral motion range and the cable stiffness range that meets the target mooring force range.

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 material and diameter of the cable 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 material and diameter of a cable according to any one of claims 1 to 7 are implemented.

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