Method and device for determining a watercraft hull plating vibration field based on simulation and testing

Abstract

This application discloses a method and equipment for determining the vibration field of a surface ship's hull plating based on simulation and experiment, relating to the field of shipbuilding technology. The method includes: dividing the hull plating into n grids representing the vibration field distribution based on the distribution of the ribs and deck of the surface ship; obtaining the number m of mechanical equipment activated under the current operating conditions and the installation position of each piece of equipment; simulating and calculating the vibration transmission matrix from each installation position to each grid under a unit excitation force; conducting vibration tests on the test object to obtain the vibration acceleration matrix corresponding to the test object; and calculating the vibration field of the hull plating based on the vibration transmission matrix and the vibration acceleration matrix. This application addresses the problems of low efficiency, long processing time, and poor accuracy in the prior art for calculating the vibration field of surface ship hull plating, achieving a rapid and accurate determination of the vibration field of the hull plating.

Description

Technical Field

[0001] This application relates to the field of ship technology, and in particular to a method and equipment for determining the vibration field of the hull plate of a surface ship based on simulation and experiment. Background Technology

[0002] Underwater radiated noise from surface ships directly affects their acoustic stealth performance and survivability. It also impacts aquatic life, raising environmental and ecological concerns. The sources of underwater radiated noise from surface ships are mainly twofold: propulsion system noise and structural noise caused by the transmission of mechanical vibrations to the hull plating. Among these, the vibration field of the hull plating is a direct factor contributing to structural noise, and its calculation and assessment are crucial aspects of surface ship vibration and noise design.

[0003] Vibration fields of hull plates on surface vessels are typically obtained using two methods. One method involves full numerical simulation, which requires accurate vibration data at the installation location under actual operating conditions of the machinery. However, after installation, obtaining vibration data at the installation location of machinery on surface vessels is difficult due to control layout constraints, leading to increased computational complexity in vibration field calculations. The other method involves conducting vibration tests on all hull plates. This method is limited by the number of test points, as it cannot completely cover the entire hull plate area, resulting in lower accuracy of the vibration field. Summary of the Invention

[0004] To address the aforementioned problems and technical requirements, the applicant proposes a method and equipment for determining the vibration field of a surface ship's outer plating based on simulation and experimentation. This method aims to solve the problems of low efficiency, long processing time, and poor accuracy in the calculation of the vibration field of a surface ship's outer plating in existing technologies, thereby enabling the rapid and accurate acquisition of the vibration field of the surface ship's outer plating.

[0005] This application provides a method for determining the vibration field of a surface ship's hull plate based on simulation and experiment. The method includes:

[0006] Based on the distribution of the ribs and deck of a surface ship, the outer plate of the surface ship is divided into n plates representing the distribution of the vibration field, where n is an integer greater than or equal to 2.

[0007] Obtain the number m of mechanical equipment activated under the current working conditions and the installation position of each mechanical equipment;

[0008] For each of the installation locations, the vibration transmission matrix from the installation location to each of the plate grids under a unit excitation force is calculated through simulation.

[0009] A vibration test is conducted on the test object to obtain the vibration acceleration matrix corresponding to the test object. The test object is obtained by extracting s target grids from w grids, where s is based on m and w is based on n.

[0010] Based on the vibration transmission matrix and the vibration acceleration matrix, the vibration field of the hull plate on the water surface is calculated.

[0011] According to an embodiment of this application, a method for determining the vibration field of a surface hull plate based on simulation and experiment is used to calculate the vibration field of the surface hull plate based on the vibration transfer matrix and the vibration acceleration matrix, including:

[0012] The vibration transmission matrix and the vibration acceleration matrix are input into a preset vibration field calculation formula to obtain the vibration field of the hull plate on the water surface, which is output by the vibration field calculation formula.

[0013] The vibration field calculation formula includes:

[0014]

[0015] Among them, A n T represents the vibration field of the hull plating on the surface of a ship. cal Represents the vibration transfer matrix. The target vibration transfer matrix T represents the s*m dimension of the plate lattice of the test object. test The inverse matrix, A test Represents the vibration acceleration matrix;

[0016] in,

[0017] Among them, t cal_[e+(h-1)*L]j The value represents the vibration transmission value from the installation position of the j-th (j≤m) mechanical device to the h-th (2≤h≤s) plate of the test object under unit excitation, where e represents a preset constant and L represents a preset plate interval.

[0018] According to an embodiment of the method for determining the vibration field of a surface hull plate based on simulation and experiment, the vibration transfer matrix includes:

[0019]

[0020] Among them, T cal Represents the vibration transfer matrix, t cal_ij This represents the vibration transmission value from the j-th installation position to the i-th plate under a unit excitation force, where i <= n and j <= m.

[0021] According to an embodiment of this application, the method for determining the vibration field of a surface hull plate based on simulation and experiment includes the following vibration acceleration matrix:

[0022]

[0023] Among them, A test Let a represent the vibration acceleration matrix. test_j This represents the vibration acceleration value of the j-th plate of the test object.

[0024] According to an embodiment of the method for determining the vibration field of a surface hull plate based on simulation and experiment, after obtaining the number of mechanical devices activated under the current operating conditions, the method further includes:

[0025] Obtain the number of devices to be deleted corresponding to the mechanical equipment installed on the hull plating of the ship on the water surface;

[0026] The difference between the number of grids and the number of devices to be deleted is calculated to obtain w.

[0027] According to an embodiment of the method for determining the vibration field of the hull plate of a surface ship based on simulation and experiment, the plate grid size is obtained by minimizing the rib spacing value and the deck height value.

[0028] The hull plating on the water surface is divided into n lattice panels representing the vibration field distribution, including:

[0029] Based on the grid size, the hull plate on the water surface is divided into n grids representing the vibration field distribution.

[0030] According to one embodiment of this application, a method for determining the vibration field of a surface hull plate based on simulation and experiment is used, where s = m + 1.

[0031] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the method for determining the vibration field of the hull plate of a surface ship as described above based on simulation and experiment.

[0032] The method and equipment for determining the vibration field of a surface hull plate based on simulation and experiment provided in this application calculate the vibration field of the surface hull plate by combining simulation and experiment. Specifically, the surface hull plate is divided into n plates representing the vibration field distribution; the number m of mechanical equipment activated under the current operating conditions and the installation position of each mechanical equipment are obtained; simulation calculation is performed on each installation position, specifically simulating the vibration transmission matrix from the installation position to each plate under a unit excitation force; and experimental processing is performed on the test object, specifically vibration testing is conducted on the test object to obtain the vibration acceleration matrix corresponding to the test object; finally, the vibration field of the surface hull plate is calculated based on the vibration transmission matrix and the vibration acceleration matrix. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a flowchart illustrating the method for determining the vibration field of the hull plate of a surface ship based on simulation and experiment, as provided in the embodiments of this application.

[0035] Figure 2 This is one of the schematic diagrams showing the division results of the hull plate of a surface vessel provided in the embodiments of this application;

[0036] Figure 3 This is the second schematic diagram of the hull plate division results of the surface hull provided in the embodiments of this application;

[0037] Figure 4 This is a schematic diagram of the device for determining the vibration field of the hull plate of a surface ship based on simulation and experiment, provided in an embodiment of this application.

[0038] Figure 5 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0040] This application provides a method for determining the vibration field of a ship's hull plating based on simulation and experiment. This method can be applied to smart terminals, servers, and ship controllers. This application uses the application of this method in a ship controller as an example for illustration, and some other descriptions in the embodiments are illustrative and not intended to limit the scope of protection of this application, and will not be described in detail thereafter. The specific implementation of the method is as follows... Figure 1 As shown:

[0041] Step 101: Based on the distribution of the ribs and deck of the surface ship, divide the outer plate of the surface ship into n plates representing the vibration field distribution.

[0042] Where n is an integer greater than or equal to 2.

[0043] Step 102: Obtain the number m of mechanical equipment activated under the current working conditions and the installation location of each mechanical equipment.

[0044] Step 103: For each installation location, simulate and calculate the vibration transmission matrix from the installation location to each plate grid under the action of a unit excitation force.

[0045] Step 104: Conduct a vibration test on the test object to obtain the vibration acceleration matrix corresponding to the test object.

[0046] The test object is obtained by extracting the target number s grids from w grids, where s is based on m and w is based on n.

[0047] Step 105: Based on the vibration transmission matrix and vibration acceleration matrix, calculate the vibration field of the hull plate on the water surface.

[0048] The method for determining the vibration field of a surface hull plate based on simulation and experiment provided in this application calculates the vibration field of the surface hull plate by combining simulation and experiment. Specifically, the surface hull plate is divided into n plates representing the vibration field distribution; the number m of mechanical equipment activated under the current operating conditions and the installation position of each piece of mechanical equipment are obtained; simulation calculation is performed on each installation position, specifically calculating the vibration transmission matrix from the installation position to each plate under a unit excitation force; and experimental processing is performed on the test object, specifically conducting vibration tests on the test object to obtain the vibration acceleration matrix corresponding to the test object; finally, the vibration field of the surface hull plate is calculated based on the vibration transmission matrix and the vibration acceleration matrix.

[0049] In one specific embodiment, a hull model is created, and the hull plate on the water surface of the hull model is divided into n plates representing the vibration field distribution according to the ribs and deck.

[0050] Specifically, the grid size is obtained by minimizing the rib spacing and deck height values. Using the obtained grid size, the hull model's surface hull plating is divided into n grids representing the vibration field distribution, based on the ribs and deck. Furthermore, each grid is numbered according to a top-to-bottom and left-to-right numbering principle, for example, P... cal_1 P cal_2 P cal_3 ...P cal_n For details, please refer to Figure 2 .

[0051] In one specific embodiment, the vibration transfer matrix is ​​shown in formula (1):

[0052]

[0053] Among them, T cal Represents the vibration transfer matrix, t cal_ij This represents the vibration transmission value from the j-th installation position to the i-th plate under a unit excitation force, where i <= n and j <= m.

[0054] In one specific embodiment, s = m + 1.

[0055] In one specific embodiment, after obtaining the number of mechanical devices activated under the current working condition, the number of devices to be deleted corresponding to the mechanical devices installed on the hull plate on the water surface is obtained, q; the difference between the number of plates and the number of devices to be deleted is calculated to obtain w.

[0056] Specifically, w is obtained by calculating the difference between n and q, i.e., w = nq.

[0057] In one specific embodiment, the selection rule for the s grids of the test object includes: numbering each of the w grids according to the numbering principle from top to bottom and from left to right, for example, the new number is P. new_1 P new_2 P new_3 ...P new_(n-q) Calculate the quotient of w and s and then round it down to get L, which is equivalent to calculating the quotient of nq and m+1 and then rounding it down.

[0058] Specifically, the first panel of the test object is numbered P. new_1 ~P new_L Choose one with the number P new_e For grids with (e≤L), following the same pattern, the h-th grid of the test object is numbered P. new_[e+(h-1)*L] The lattice is a grid. Where h (2≤h≤m+1).

[0059] In one specific embodiment, the vibration acceleration matrix is ​​shown in formula (2):

[0060]

[0061] Among them, A test Let a represent the vibration acceleration matrix. test_j This represents the vibration acceleration value of the j-th plate of the test object.

[0062] Specifically, multiple selections of the test object can be made to obtain multiple vibration acceleration matrices. The average value of the multiple vibration accelerations can be calculated and used as the final vibration acceleration matrix.

[0063] In one specific embodiment, the vibration transfer matrix T obtained from simulation calculations cal Extract the target vibration transfer matrix T, whose plate dimension is (m+1)×m, from the corresponding test object. test The specific extraction method includes: separating the vibration transmission value t from the installation position of the j-th mechanical device to the h-th plate of the test object under the action of a unit excitation force. cal_[e+(h-1)*L]j And obtain T test See formula (3) for details:

[0064]

[0065] Among them, t cal_[e+(h-1)*L]j The value represents the vibration transmission value from the installation position of the j-th (j≤m) mechanical device to the h-th (1≤h≤s) plate of the test object under unit excitation, e represents the preset constant, and L represents the preset plate interval.

[0066] In one specific embodiment, the calculation of the vibration field of the hull plate on the water surface based on the vibration transfer matrix and the vibration acceleration matrix includes the following specific implementation:

[0067] Input the vibration transmission matrix and vibration acceleration matrix into the preset vibration field calculation formula to obtain the vibration field of the hull plate on the water surface output by the vibration field calculation formula.

[0068] The formula for calculating the vibration field is shown in formula (4):

[0069]

[0070] Among them, A n T represents the vibration field of the hull plating on the surface of a ship. cal Represents the vibration transfer matrix. The target vibration transfer matrix T represents the s*m dimension of the plate lattice of the test object. test The inverse matrix, A test This represents the vibration acceleration matrix.

[0071] Specifically, calculate T test The inverse matrix is ​​obtained.

[0072] Specifically, to illustrate this application more clearly, a ship example is used as the subject, and data at a frequency of 100Hz is used for illustration. Of course, this embodiment is only an example and is not intended to limit the scope of protection of this application.

[0073] This example uses a small vessel where the minimum spacing between ribs and the minimum deck height are 1 meter. This means the grid size representing the vibration field distribution is 1 meter. The outer hull plating (surface hull plating) is divided into 16 grids. Figure 3 As shown, the labels are arranged from top to bottom and from left to right, with P as the number. cal_1 P cal_2 P cal_3 ...P cal_16 .

[0074] The analysis yields the number of mechanical devices to be activated under the test conditions, m=2, which are motor devices installed on the deck inside the ship and water pump devices installed on the outer plating of the ship. The number of devices installed on the outer plating of the ship is q=1.

[0075] Numerical simulation was used to calculate the vibration transmission matrix T from the installation positions of the motor (j=1) and water pump (j=2) to the outer plating of each hull side under a unit excitation force. cal That is, the vibration transmission value t from the installation position of the j-th (j≤2) mechanical device to the i-th (i≤16) plate under a unit excitation. cal_ij The matrix representation is as follows:

[0076]

[0077] In the vibration test, (m+1) = 3 plates were selected as the test objects on the outer plating of the hull side, and the vibration acceleration matrix A on the corresponding plates was obtained. test .

[0078] The selection of the (m+1) test plates in the vibration test is as follows: In this embodiment, q=1, excluding the plates (labeled P) where water pumps and mechanical equipment are installed. cal_9 The outer plating of the hull side was re-numbered as P according to the principle of top to bottom and left to right. new_1 P new_2 P new_3 ...P new_15 Round nq / m+1 to L=5; the first grid of the test object starts from number P. new_1 ~P new_5 Choose any grid P new_e (e≤L), in this embodiment, e=3 is selected, that is, numbered P. new_3The test object's h-th (2≤h≤m+1) grid is numbered P. new_[e+(h-1)*L] The grid, in this embodiment, is P. new_8 P new_13 .

[0079] The test obtained the first grid P of the test object. new_3 Test object, second panel P new_8 The vibration acceleration value a of the third (m+1=3) plate of the test object. test_1 a test_2 and a test_3 And form the vibration acceleration matrix A test Characterization formula:

[0080]

[0081] The vibration transfer matrix T calculated based on simulation cal The vibration acceleration matrix A obtained from the experiment test Calculate the vibration field A of the hull plate divided by the hull plate on the water surface. n ;

[0082] Matrix T obtained from simulation calculation cal Extract the vibration transfer matrix T of the corresponding test object plate with dimension (m+1)×m. test In this embodiment, T test Given a 3×2 matrix, the vibration transmission value t of the j-th (j≤2) mechanical device, such as the motor (j=1) and the water pump (j=2), under a unit excitation, is extracted to the h-th (1≤h≤3) grid of the test object. cal_[e+(h-1)*L]j In this embodiment, matrix T test Characterized as:

[0083]

[0084] Calculate matrix T test inverse matrix In this embodiment for:

[0085]

[0086] Vibration acceleration matrix A based on experimental tests test Calculate the vibration field distribution matrix A of the hull plate on the water surface in this embodiment. n :

[0087]

[0088] After matrix multiplication calculation, the vibration field distribution matrix A of the hull plate on the water surface in this embodiment is... nfor:

[0089] This application overcomes the drawbacks of existing full simulation methods, which require vibration testing at the actual installation location of mechanical equipment, making accurate calculation input difficult to obtain, and the technical challenge of full experimental methods, which cannot completely cover the entire area of ​​the hull plating. The vibration test in this application only requires a small number of vibration acceleration measurement points arranged according to rules, which can efficiently and effectively obtain the vibration field of the hull plating on the water surface, providing a computational evaluation method for the design of vibration and noise in surface ships.

[0090] This application also provides a device for determining the vibration field of a surface hull plate based on simulation and experiment. The specific implementation of this device can be found in the description of the method for determining the vibration field of a surface hull plate based on simulation and experiment; repeated details will not be elaborated upon. Figure 4 As shown, the device includes:

[0091] The partitioning module 401 is used to partition the outer plate of the surface ship into n plates representing the vibration field distribution based on the distribution of the ribs and deck of the surface ship, where n is an integer greater than or equal to 2.

[0092] The acquisition module 402 is used to acquire the number m of mechanical equipment that is activated under the current working condition and the installation position of each mechanical equipment.

[0093] The simulation calculation module 403 is used to simulate and calculate the vibration transmission matrix from the installation location to each plate grid under the action of a unit excitation force for each installation location.

[0094] The test module 404 is used to conduct vibration tests on the test object and obtain the vibration acceleration matrix corresponding to the test object. The test object is obtained by extracting s target plates from w plates, where s is based on m and w is based on n.

[0095] The vibration field calculation module 405 is used to calculate the vibration field of the hull plate on the water surface based on the vibration transmission matrix and the vibration acceleration matrix.

[0096] In one specific embodiment, the vibration field calculation module 405 is used to input the vibration transmission matrix and the vibration acceleration matrix into a preset vibration field calculation formula to obtain the vibration field of the hull plate on the water surface output by the vibration field calculation formula.

[0097] The formulas for calculating the vibration field include:

[0098]

[0099] Among them, A n T represents the vibration field of the hull plating on the surface of a ship.cal Represents the vibration transfer matrix. The target vibration transfer matrix T represents the s*m dimension of the plate lattice of the test object. test The inverse matrix, A test This represents the vibration acceleration matrix.

[0100] in,

[0101] Among them, t cal_[e+(h-1)*L]j The value represents the vibration transmission value from the installation position of the j-th (j≤m) mechanical device to the h-th (2≤h≤s) plate of the test object under unit excitation, where e represents a preset constant and L represents a preset plate interval.

[0102] In one specific embodiment, the vibration transfer matrix includes:

[0103]

[0104] Among them, T cal Represents the vibration transfer matrix, t cal_ij This represents the vibration transmission value from the j-th installation position to the i-th plate under a unit excitation force, where i <= n and j <= m.

[0105] In one specific embodiment, the vibration acceleration matrix includes:

[0106]

[0107] Among them, A test Let a represent the vibration acceleration matrix. test_j This represents the vibration acceleration value of the j-th plate of the test object.

[0108] In one specific embodiment, the acquisition module 402 is further configured to acquire the number of devices to be deleted corresponding to the mechanical equipment installed on the hull plate of the ship on the water surface; calculate the difference between the number of plates and the number of devices to be deleted to obtain w.

[0109] In one specific embodiment, the grid size is obtained by taking the smaller value of the rib spacing and the deck height; the division module 401 is used to divide the hull plate on the water surface into n grids representing the vibration field distribution based on the grid size.

[0110] In one specific embodiment, s = m + 1.

[0111] Figure 5 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 5As shown, the electronic device may include a processor 501, a communication interface 502, a memory 503, and a communication bus 504. The processor 501, communication interface 502, and memory 503 communicate with each other via the communication bus 504. The processor 501 can call logic instructions from the memory 503 to execute a method for determining the vibration field of the hull plate of a ship based on simulation and experiment.

[0112] Furthermore, the logical instructions in the aforementioned memory 503 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0113] On the other hand, the present invention also provides a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, and when the program instructions are executed by a computer, the computer is able to execute the method for determining the vibration field of the hull plate of a water surface based on simulation and experiment provided by the above methods.

[0114] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the method for determining the vibration field of the hull plate of a water surface based on simulation and experiment provided in the above embodiments.

[0115] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0116] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0117] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application, and this application is not limited to the above embodiments. It is understood that other improvements and variations directly derived or conceived by those skilled in the art without departing from the spirit and concept of this application should be considered to be included within the protection scope of this application.

Claims

1. A method for determining the vibration field of a surface hull plate based on simulation and experiment, characterized in that, The method includes: Based on the distribution of the ribs and deck of a surface ship, the outer plate of the surface ship is divided into n plates representing the distribution of the vibration field, where n is an integer greater than or equal to 2. Obtain the number m of mechanical equipment activated under the current working conditions and the installation position of each mechanical equipment; For each of the installation locations, the vibration transmission matrix from the installation location to each of the plate grids under a unit excitation force is calculated through simulation. A vibration test is conducted on the test object to obtain the vibration acceleration matrix corresponding to the test object. The test object is obtained by extracting s target grids from w grids, where s is based on m and w is based on n. Based on the vibration transmission matrix and the vibration acceleration matrix, the vibration field of the hull plate on the water surface is calculated.

2. The method for determining the vibration field of the hull plating of a ship based on simulation and experiment according to claim 1, characterized in that, Based on the vibration transmission matrix and the vibration acceleration matrix, the vibration field of the hull plate on the water surface is calculated, including: The vibration transmission matrix and the vibration acceleration matrix are input into a preset vibration field calculation formula to obtain the vibration field of the hull plate on the water surface, which is output by the vibration field calculation formula. The vibration field calculation formula includes: Among them, A n T represents the vibration field of the hull plating on the surface of a ship. cal Represents the vibration transfer matrix. The target vibration transfer matrix T represents the s*m dimension of the plate lattice of the test object. test The inverse matrix, A test Represents the vibration acceleration matrix; in, Among them, t cal_[e+(h-1)*L]j The value represents the vibration transmission value from the installation position of the j-th (j≤m) mechanical device to the h-th (2≤h≤s) plate of the test object under unit excitation, where e represents a preset constant and L represents a preset plate interval.

3. The method for determining the vibration field of the hull plating of a surface vessel based on simulation and experiment according to claim 1, characterized in that, The vibration transmission matrix includes: Among them, T cal Represents the vibration transfer matrix, t cal_ij This represents the vibration transmission value from the j-th installation position to the i-th plate under a unit excitation force, where i <= n and j <= m.

4. The method for determining the vibration field of the hull plating of a surface vessel based on simulation and experiment according to claim 1, characterized in that, The vibration acceleration matrix includes: Among them, A test Let a represent the vibration acceleration matrix. test_j This represents the vibration acceleration value of the j-th plate of the test object.

5. The method for determining the vibration field of a surface hull plate based on simulation and experiment according to any one of claims 1-4, characterized in that, After obtaining the number of mechanical devices currently in operation, the following also applies: Obtain the number of devices to be deleted corresponding to the mechanical equipment installed on the hull plating of the ship on the water surface; The difference between the number of grids and the number of devices to be deleted is calculated to obtain w.

6. The method for determining the vibration field of a surface hull plate based on simulation and experiment according to any one of claims 1-4, characterized in that, The dimensions of the plate grid are obtained by minimizing the rib spacing value and the deck height value; The hull plating on the water surface is divided into n lattice panels representing the vibration field distribution, including: Based on the grid size, the hull plate on the water surface is divided into n grids representing the vibration field distribution.

7. The method for determining the vibration field of a surface hull plate based on simulation and experiment according to claim 1, characterized in that, s = m + 1.

8. A device for determining the vibration field of a surface hull plate based on simulation and experiment, characterized in that, include: The partitioning module is used to partition the outer plate of a surface ship into n plates representing the vibration field distribution based on the distribution of the ribs and deck of the surface ship, where n is an integer greater than or equal to 2. The acquisition module is used to acquire the number m of mechanical equipment that is activated under the current working conditions and the installation position of each mechanical equipment. The simulation calculation module is used to simulate and calculate the vibration transmission matrix from each installation position to each plate grid under a unit excitation force for each installation position. The test module is used to conduct vibration tests on the test object and obtain the vibration acceleration matrix corresponding to the test object. The test object is obtained by extracting a target number of s plates from w plates, where s is based on m and w is based on n. The vibration field calculation module is used to calculate the vibration field of the hull plate on the water surface based on the vibration transmission matrix and the vibration acceleration matrix.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method for determining the vibration field of the hull plate of a surface ship based on simulation and experiment 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 executed by a processor, the computer program implements the steps of the method for determining the vibration field of the hull plate of a surface ship based on simulation and experiment as described in any one of claims 1 to 7.

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