A hydrodynamic analysis method and system

Abstract

The application discloses a kind of water power analysis method and system, the method includes establishing the wet surface model of offshore comprehensive test platform;Extract the strut structure data of the slender body feature in wet surface model, and the strut structure data is generated morrison model;Water dynamic model is constructed based on wet surface model and morrison model, and water dynamic calculation result is obtained by using the water dynamic model calculation wave load transfer function;Water dynamic calculation result is analyzed to obtain final analysis result by the form of numerical list and broken line chart.The application can more accurately simulate the actual stress condition of offshore platform under the action of wave, so as to improve the effectiveness and reliability of design.

Description

Technical Field

[0001] This invention relates to the field of hydrodynamic analysis technology, and in particular to a hydrodynamic analysis method and system. Background Technology

[0002] In the solution process, it is necessary to consider the mean wave drift force and the low-frequency slow drift force. The magnitude of these forces is proportional to the square of the incident wave height and needs to be represented by the second-order wave force quadratic transfer function (QTF). In actual calculations, it may be necessary to use methods such as the full QTF method or the Newman approximation to solve the QTF matrix. The application effect of these methods may vary under different sea states, and the appropriate method needs to be selected according to the specific situation. When conducting model tests, all test instruments need to be calibrated, and physical quantities related to data acquisition, such as six-degree-of-freedom motion, motion acceleration, and mooring cable load, need to be measured. The accuracy of the model test is crucial for verifying the accuracy of the numerical simulation. When comparing the results of numerical calculations and model tests, discrepancies may be found between the two, and further investigation is needed to determine the specific reasons. The motion response of the floating body will vary under different water depth conditions. The shallow water effect is mainly reflected in the low-frequency part. As the draft ratio decreases, the platform's pitch and sway RAO gradually decrease. When conducting hydrodynamic analysis, special attention needs to be paid to the vertical motion of the floating body to avoid the risk of bottoming out. In the design of marine engineering structures, it is necessary to consider the cross-scale interactions between macroscopic structures, local components, and microscopic materials. Traditional single-scale analysis methods are insufficient for effectively implementing comprehensive design optimization of structures. Therefore, it is necessary to develop cross-scale coupled analysis methods to support the design and analysis of novel marine structures. The application of multi-scale methods for materials is a key technical challenge in the cross-scale analysis of marine structures. It is necessary to improve the macroscopic properties of materials by starting with microscopic characteristics and establishing coupling relationships between the macroscopic and microscopic aspects of materials to achieve comprehensive optimization design of structures from structural dimensions to material composition. Numerical simulation technology for the interaction between nonlinear large deformation response and elastoplastic damage of marine structures under extreme sea conditions is one of the cutting-edge key issues. It is necessary to comprehensively elucidate the nonlinear evolution characteristics and interaction mechanisms of the physical properties of microscopic materials, mesoscopic components, and macroscopic structures under marine environmental loads. When analyzing hydrodynamic calculation results, data visualization is required using numerical lists and line graphs. This necessitates selecting appropriate tools and methods to display the trends and patterns of data changes for a more intuitive understanding. For example, Python's matplotlib library can be used to draw line graphs to show the data's variation patterns and peak values. In whole-ship finite element analysis, the direct calculation and application of wave loads presents a technical challenge. It is necessary to investigate methods for calculating wave loads and how to effectively apply these loads to the finite element model for accurate structural response analysis. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, this invention proposes a hydrodynamic analysis method. By calculating the wave load transfer function, the dynamic response of the platform under different sea states can be predicted, providing important data support for the platform's stability and safety.

[0005] To achieve the above objectives, another aspect of the present invention provides a hydrodynamic analysis system.

[0006] To achieve the above objectives, the present invention provides a hydrodynamic analysis method, comprising:

[0007] Establish a wet surface model of the integrated marine test platform;

[0008] Extract strut structure data of slender body features from the wet surface model, and generate a Morrison model from the strut structure data;

[0009] A hydrodynamic model is constructed based on the wet surface model and the Morrison model, and the wave load transfer function is calculated using the hydrodynamic model to obtain the hydrodynamic calculation results.

[0010] The final analysis results are obtained by analyzing the hydrodynamic calculation results in the form of numerical lists and line graphs.

[0011] Furthermore, the hydrodynamic analysis method of this invention also includes the following technical features:

[0012] In one embodiment of the present invention, the mesh size of the wet surface model is set to 1 meter, the finite element model includes 10258 plate elements and 24584 nodes, and the interface file T1.FEM is exported as the calculation interface file of the Wadam module in the HydroD hydrodynamic model.

[0013] In one embodiment of the present invention, the Morrison model includes a six-underwater strut structure connecting the pontoon and the column of the integrated marine test platform. In the Wadam frequency domain analysis module, the Morrison model mesh does not require setting the model element size. After meshing, the interface file T2.FEM is exported for calculation by the Wadam module.

[0014] In one embodiment of the present invention, a hydrodynamic model is constructed based on a wetted surface model and a Morrison model, and the wave load transfer function is calculated using the hydrodynamic model to obtain hydrodynamic calculation results, including:

[0015] After generating the finite element model files T1.FEM and T2.FEM, import the files into the Wadam module of the HydroD hydrodynamic model and set the parameters. The parameters set include wave direction range, wave frequency range, water depth, waterline height, and mid-longitudinal profile parameters.

[0016] Based on the three-dimensional potential flow theory and the Morrison equation, the wave loads of unit regular waves acting on plate elements and rod elements are calculated using the Wadam module, and the hydrodynamic calculation results files WADAM.LIS and L1.SI are exported.

[0017] In one embodiment of the present invention, the final analysis results are obtained by analyzing the hydrodynamic calculation results in the form of numerical lists and line graphs, including:

[0018] Qualitative and quantitative analyses of the first-order wave force and the first-order wave force on the load profile of the platform were performed to obtain the analysis results of the first-order wave force.

[0019] After organizing the results of the first-order wave force analysis into a list, the maximum amplitude value is searched to obtain the period and wave direction angle corresponding to the maximum amplitude value of the first-order wave force.

[0020] The cross-sectional load analysis results are obtained based on the response amplitude of the four main cross-sectional load parameters: frequency, longitudinal shear force, transverse shear force, torque, and vertical bending moment.

[0021] After organizing the results of the profile load analysis into a list, the maximum amplitude value is searched to obtain the frequency and wave direction angle corresponding to the maximum amplitude value of the main load parameters of the profile load.

[0022] To achieve the above objectives, a second aspect of this application provides a hydrodynamic analysis system, comprising:

[0023] The wet surface model building module is used to build a wet surface model of the marine integrated test platform;

[0024] The Morrison model building module is used to extract strut structure data of slender body features from the wet surface model and generate a Morrison model from the strut structure data;

[0025] The hydrodynamic calculation module is used to construct a hydrodynamic model based on the wet surface model and the Morrison model, and to calculate the wave load transfer function using the hydrodynamic model to obtain the hydrodynamic calculation results.

[0026] The hydrodynamic analysis module is used to analyze the hydrodynamic calculation results in the form of numerical lists and line graphs to obtain the final analysis results.

[0027] The hydrodynamic analysis method and system of this invention can more accurately simulate the actual stress conditions of offshore platforms under wave action, thereby improving the effectiveness and reliability of the design. By calculating the wave load transfer function, the dynamic response of the platform under different sea states can be predicted, providing important data support for the stability and safety of the platform. It can help engineers understand the impact of wave forces on the structure, thereby optimizing the structural design to reduce material usage and costs while ensuring the strength and durability of the structure. Analyzing the hydrodynamic calculation results using numerical tables and line graphs can intuitively display the data change trends and patterns, making it easier for engineers and decision-makers to understand and evaluate the design effectiveness.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 This is a flowchart of a hydrodynamic analysis method according to an embodiment of the present invention;

[0031] Figure 2 This is a structural diagram of a wet surface model according to an embodiment of the present invention;

[0032] Figure 3 This is a structural diagram of the Morrison model according to an embodiment of the present invention;

[0033] Figure 4 This is a structural diagram of a hydrodynamic model according to an embodiment of the present invention;

[0034] Figure 5 These are six typical cross-sectional schematic diagrams according to embodiments of the present invention;

[0035] Figure 6 This is a schematic diagram of the longitudinal shear force response in the X-axis direction according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the transverse shear force response in the Y-axis direction according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the transverse shear force response in the Z-axis direction according to an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the torque response about the X-axis according to an embodiment of the present invention;

[0039] Figure 10This is a schematic diagram of the torque response about the Y-axis according to an embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of the horizontal bending moment response about the Z-axis according to an embodiment of the present invention;

[0041] Figure 12 This is a schematic diagram of the longitudinal shear force amplitude-frequency response curve of a typical cross-section according to an embodiment of the present invention;

[0042] Figure 13 This is a schematic diagram of the transverse shear force amplitude-frequency response curve of a typical cross-section according to an embodiment of the present invention;

[0043] Figure 14 This is a schematic diagram of the longitudinal section torque amplitude-frequency response curve according to an embodiment of the present invention;

[0044] Figure 15 This is a schematic diagram of the vertical bending moment amplitude-frequency response curve of a typical cross-section according to an embodiment of the present invention;

[0045] Figure 16 This is a structural diagram of a hydrodynamic analysis system according to an embodiment of the present invention. Detailed Implementation

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0048] A hydrodynamic analysis method and system according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0049] like Figure 1 As shown, the method of the present invention includes:

[0050] S1, Establish a wet surface model of the marine integrated test platform;

[0051] S2, extract the strut structure data of the slender body features in the wet surface model, and generate the Morrison model from the strut structure data;

[0052] S3. A hydrodynamic model is constructed based on the wet surface model and the Morrison model, and the wave load transfer function is calculated using the hydrodynamic model to obtain the hydrodynamic calculation results.

[0053] S4. The hydrodynamic calculation results are analyzed in the form of numerical lists and line graphs to obtain the final analysis results.

[0054] Specifically, a hydrodynamic model of the integrated marine test platform can be established based on the existing general layout drawing. Although the general layout drawing does not include structural design details, during the hydrodynamic analysis of the platform, only the wetted surface below the waterline and the strut structure are subjected to hydrodynamic forces. Therefore, before structural design, a hydrodynamic analysis of the integrated marine test platform can be performed to calculate the wave load transfer function.

[0055] A wetted surface model of the integrated marine test platform was built using the Genie module of SESAM software, such as... Figure 2 As shown, and the Morrison model as Figure 3 As shown.

[0056] The wetted surface model includes the underwater sections of the pontoons and columns, which are also the main structures affected by wave and current loads. The Wadam hydrodynamic frequency domain analysis module has requirements on the number of finite element meshes; the mesh count cannot exceed 15,000. Therefore, when meshing the wetted surface model, the mesh size should not be too small, but it should also not be too large to avoid affecting the accuracy of the calculation results.

[0057] The mesh size of the wetted surface model of the marine integrated test platform in this invention is set to 1 meter. The finite element model includes 10,258 plate elements and 24,584 nodes, and the interface file T1.FEM is exported as the calculation interface file for the Wadam module in HydroD. Although there is no strut connection between the pontoons and the columns in the T1.FEM finite element model, it will not affect the calculation of hydrodynamics and wave loads after importing into the Morison model.

[0058] After the wet surface model is completed, the slender strut structure is processed to generate the Morrison model. The Morrison model includes six underwater struts connecting the pontoons and columns of the integrated marine test platform. In the Wadam frequency domain analysis module, the Morrison model mesh does not require setting the model element size. After meshing, the interface file T2.FEM is exported for calculation in the Wadam module.

[0059] After generating the T1.FEM and T2.FEM finite element model files, import them into the Wadam setup wizard in the HydroD module. The HydroD hydrodynamic model is as follows: Figure 4As shown in the diagram. In the wizard's parameter settings, considering the characteristics of the marine integrated test platform, which has both a wet surface model and a Morrison model, a composite model was selected for parameter settings. The set parameters include wave direction range, wave frequency range, water depth, waterline height, and mid-longitudinal profile wave environment parameters, as shown in Table 1 below.

[0060] Table 1

[0061] Environmental parameters Parameter value speed 0m / s Wave angle 0°~180°, step size 15° cycle 0.1 rad / s to 2.0 rad / s, step size 0.1 rad / s Design water depth 100m

[0062] In hydrodynamic analysis, profile loads are crucial; therefore, the offshore integrated test platform needs to be sliced ​​to establish load profiles. Load profiles are established along the X and Y directions of the platform. Along the X direction, three typical YOZ profiles are established at X = 1m, 19m, and 39m, respectively, designated as profiles 101, 102, and 103, with profile 102 being a typical mid-transverse profile. Similarly, along the Y direction, three typical XOZ profiles are established at Y = -11m, 0m, and 11m, respectively, designated as profiles 201, 202, and 203, with profile 202 being a typical mid-longitudinal profile. The six typical profiles of the offshore integrated test platform are shown below. Figure 5 As shown.

[0063] Based on the three-dimensional potential flow theory and the Morrison equation, the wave loads of unit regular waves acting on plate elements and rod elements are calculated using the Wadam module, and the hydrodynamic calculation results files WADAM.LIS and L1.SIN are exported.

[0064] Furthermore, the hydrodynamic calculation result file WADAM.LIS is analyzed using the Postresp post-processing module in HydroD. The hydrodynamic calculation results can be analyzed in the form of numerical lists and line graphs. Qualitative and quantitative analyses are performed on the first-order wave force and the first-order wave force on the load profile of the platform:

[0065] (1) First-order wave force of the marine integrated test platform

[0066] Given that the incident wave undergoes wave diffraction upon encountering the platform's floating body, the first-order wave force consists of two parts: the incident wave force and the diffracted wave force. Under the assumption of linear theory, the first-order wave force is usually given in the form of an amplitude-frequency response function, characterizing the structural response under the action of a unit regular wave.

[0067] Figures 6 to 11 The results show the first-order wave force amplitude-frequency response of the marine integrated test platform under the action of a unit regular wave. The horizontal axis represents the frequency, and the vertical axis represents the response amplitudes of longitudinal shear force, transverse shear force, vertical shear force, torque, vertical bending moment, and horizontal bending moment, respectively.

[0068] After organizing the results of the first-order wave force analysis into a list and searching for the maximum amplitude, the period and wave direction angle corresponding to the maximum amplitude of the first-order wave force can be obtained, as shown in Table 2 below:

[0069] Table 2

[0070]

[0071] (2) Profile loads of the marine integrated test platform

[0072] Similar to first-order wave forces, under the assumption of linear theory, the amplitude of the profile load is proportional to the amplitude of the incident wave. This invention sets up four typical profiles in the parameter settings of the HydroD module for profile load analysis. The final design wave parameters are determined through the profile loads; therefore, the analysis of the calculated profile load results is crucial. The profile loads of the four typical profiles of the marine integrated test platform are as follows: Figures 12-15 As shown, the horizontal axis represents frequency, and the vertical axis represents the response amplitude of the four main load parameters: longitudinal shear force, transverse shear force, torque, and vertical bending moment.

[0073] As shown in the figure: For longitudinal shear force in typical cross-sections, the amplitude of the longitudinal shear force response is relatively large within the frequency range of 0.9 rad / s to 1.1 rad / s, and the longitudinal shear force is the largest in the middle longitudinal cross-section under transverse wave conditions. For transverse shear force in typical cross-sections, the amplitude of the transverse shear force response is relatively large within the frequency range of 0.9 rad / s to 1.1 rad / s, and the transverse shear force is the largest in cross-section 103 when the wave angle is 0°. For torque in typical cross-sections, the amplitude of the torque response is relatively large within the frequency range of 0.9 rad / s to 1.1 rad / s, and the torque is the largest in the middle transverse cross-section when the wave angle is 30°. For vertical bending moment in typical cross-sections, the amplitude of the vertical bending moment response is relatively large within the frequency range of 0.9 rad / s to 1.1 rad / s, and the vertical bending moment is the largest in cross-section 101 when the wave angle is 180°.

[0074] After organizing the results of the profile load analysis into a list and searching for the maximum amplitude, the frequencies and wave directions corresponding to the maximum amplitudes of the main load parameters of the profile load are shown in Table 3 below:

[0075] Table 3

[0076]

[0077] The hydrodynamic analysis method according to embodiments of the present invention helps engineers understand the impact of wave forces on structures, thereby optimizing structural design to reduce material usage and costs while ensuring structural strength and durability. Analyzing hydrodynamic calculation results using numerical tables and line graphs visually displays data trends and patterns, facilitating understanding and evaluation of design effectiveness by engineers and decision-makers. By assessing the survivability of semi-submersible floating foundations under extreme sea states, the safety of the platform in extreme environments can be ensured, reducing potential risks and losses. For offshore wind power platforms, accurate hydrodynamic analysis helps reduce the impact of wind speed fluctuations on power generation efficiency, thereby improving energy utilization efficiency.

[0078] Furthermore, Figure 16 This is a structural diagram of the hydrodynamic analysis system according to an embodiment of the present invention, as shown below. Figure 16 The hydrodynamic analysis system 10 includes:

[0079] The wet surface model construction module 100 is used to build a wet surface model of the marine integrated test platform;

[0080] Morrison model building module 200 is used to extract strut structure data of slender body features in wet surface model and generate Morrison model from strut structure data;

[0081] The hydrodynamic calculation module 300 is used to construct a hydrodynamic model based on the wet surface model and the Morrison model, and to calculate the wave load transfer function using the hydrodynamic model to obtain the hydrodynamic calculation results.

[0082] The hydrodynamic analysis module 400 is used to analyze the hydrodynamic calculation results in the form of numerical lists and line graphs to obtain the final analysis results.

[0083] Furthermore, the mesh size of the wet surface model is set to 1 meter, the finite element model includes 10258 plate elements and 24584 nodes, and the interface file T1.FEM is exported as the calculation interface file of the Wadam module in the HydroD hydrodynamic model.

[0084] Furthermore, the Morrison model includes a six-rod underwater support structure connecting the pontoons and columns of the integrated marine test platform. In the Wadam frequency domain analysis module, the Morrison model mesh does not require setting the model element size. After meshing, the interface file T2.FEM is exported for calculation in the Wadam module.

[0085] Furthermore, the hydrodynamic calculation module 300 is also used for:

[0086] After generating the finite element model files T1.FEM and T2.FEM, import the files into the Wadam module of the HydroD hydrodynamic model and set the parameters. The parameters set include wave direction range, wave frequency range, water depth, waterline height, and mid-longitudinal profile parameters.

[0087] Based on the three-dimensional potential flow theory and the Morrison equation, the wave loads of unit regular waves acting on plate elements and rod elements are calculated using the Wadam module, and the hydrodynamic calculation results files WADAM.LIS and L1.SI are exported.

[0088] Furthermore, the hydrodynamic analysis module is also used for:

[0089] Qualitative and quantitative analyses of the first-order wave force and the first-order wave force on the load profile of the platform were performed to obtain the analysis results of the first-order wave force.

[0090] After organizing the results of the first-order wave force analysis into a list, the maximum amplitude value is searched to obtain the period and wave direction angle corresponding to the maximum amplitude value of the first-order wave force.

[0091] The cross-sectional load analysis results are obtained based on the response amplitude of the four main cross-sectional load parameters: frequency, longitudinal shear force, transverse shear force, torque, and vertical bending moment.

[0092] After organizing the results of the profile load analysis into a list, the maximum amplitude value is searched to obtain the frequency and wave direction angle corresponding to the maximum amplitude value of the main load parameters of the profile load.

[0093] The hydrodynamic analysis system according to embodiments of the present invention helps engineers understand the impact of wave forces on structures, thereby optimizing structural design to reduce material usage and costs while ensuring structural strength and durability. Analyzing hydrodynamic calculation results using numerical lists and line graphs visually displays data trends and patterns, facilitating understanding and evaluation of design effectiveness by engineers and decision-makers. By assessing the survivability of semi-submersible floating foundations under extreme sea states, the safety of the platform in extreme environments can be ensured, reducing potential risks and losses. For offshore wind power platforms, accurate hydrodynamic analysis helps reduce the impact of wind speed fluctuations on power generation efficiency, thereby improving energy utilization efficiency.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A hydrodynamic analysis method, characterized in that, include: Establish a wet surface model of the integrated marine test platform; Extract strut structure data of slender body features from the wet surface model, and generate a Morrison model from the strut structure data; A hydrodynamic model is constructed based on the wet surface model and the Morrison model, and the wave load transfer function is calculated using the hydrodynamic model to obtain the hydrodynamic calculation results. The final analysis results are obtained by analyzing the hydrodynamic calculation results in the form of numerical lists and line graphs.

2. The method according to claim 1, characterized in that, The mesh size of the wet surface model is set to 1 meter. The finite element model includes 10,258 plate elements and 24,584 nodes. The interface file T1.FEM is exported as the calculation interface file of the Wadam module in the HydroD hydrodynamic model.

3. The method according to claim 2, characterized in that, The Morrison model includes a six-rod underwater support structure connecting the pontoons and columns of the integrated marine test platform. In the Wadam frequency domain analysis module, the Morrison model mesh does not require setting the model element size. After meshing, the interface file T2.FEM is exported for calculation in the Wadam module.

4. The method according to claim 3, characterized in that, A hydrodynamic model is constructed based on the wetted surface model and the Morrison model, and the wave load transfer function is calculated using the hydrodynamic model to obtain the hydrodynamic calculation results, including: After generating the finite element model files T1.FEM and T2.FEM, import the files into the Wadam module of the HydroD hydrodynamic model and set the parameters. The parameters set include wave direction range, wave frequency range, water depth, waterline height, and mid-longitudinal profile parameters. Based on the three-dimensional potential flow theory and the Morrison equation, the wave loads of unit regular waves acting on plate elements and rod elements are calculated using the Wadam module, and the hydrodynamic calculation results files WADAM.LIS and L1.SI are exported.

5. The method according to claim 4, characterized in that, The final analysis results are obtained by analyzing the hydrodynamic calculation results in the form of numerical lists and line graphs, including: Qualitative and quantitative analyses of the first-order wave force and the first-order wave force on the load profile of the platform were performed to obtain the analysis results of the first-order wave force. After organizing the results of the first-order wave force analysis into a list, the maximum amplitude value is searched to obtain the period and wave direction angle corresponding to the maximum amplitude value of the first-order wave force. The cross-sectional load analysis results are obtained based on the response amplitude of the four main cross-sectional load parameters: frequency, longitudinal shear force, transverse shear force, torque, and vertical bending moment. After organizing the results of the profile load analysis into a list, the maximum amplitude value is searched to obtain the frequency and wave direction angle corresponding to the maximum amplitude value of the main load parameters of the profile load.

6. A hydrodynamic analysis system, characterized in that, include: The wet surface model building module is used to build a wet surface model of the marine integrated test platform; The Morrison model building module is used to extract strut structure data of slender body features from the wet surface model and generate a Morrison model from the strut structure data; The hydrodynamic calculation module is used to construct a hydrodynamic model based on the wet surface model and the Morrison model, and to calculate the wave load transfer function using the hydrodynamic model to obtain the hydrodynamic calculation results. The hydrodynamic analysis module is used to analyze the hydrodynamic calculation results in the form of numerical lists and line graphs to obtain the final analysis results.

7. The system according to claim 6, characterized in that, The mesh size of the wet surface model is set to 1 meter. The finite element model includes 10,258 plate elements and 24,584 nodes. The interface file T1.FEM is exported as the calculation interface file of the Wadam module in the HydroD hydrodynamic model.

8. The system according to claim 7, characterized in that, The Morrison model includes a six-rod underwater support structure connecting the pontoons and columns of the integrated marine test platform. In the Wadam frequency domain analysis module, the Morrison model mesh does not require setting the model element size. After meshing, the interface file T2.FEM is exported for calculation in the Wadam module.

9. The system according to claim 8, characterized in that, The hydrodynamic calculation module is also used for: After generating the finite element model files T1.FEM and T2.FEM, import the files into the Wadam module of the HydroD hydrodynamic model and set the parameters. The parameters set include wave direction range, wave frequency range, water depth, waterline height, and mid-longitudinal profile parameters. Based on the three-dimensional potential flow theory and the Morrison equation, the wave loads of unit regular waves acting on plate elements and rod elements are calculated using the Wadam module, and the hydrodynamic calculation results files WADAM.LIS and L1.SI are exported.

10. The system according to claim 9, characterized in that, The hydrodynamic analysis module is also used for: Qualitative and quantitative analyses of the first-order wave force and the first-order wave force on the load profile of the platform were performed to obtain the analysis results of the first-order wave force. After organizing the results of the first-order wave force analysis into a list, the maximum amplitude value is searched to obtain the period and wave direction angle corresponding to the maximum amplitude value of the first-order wave force. The cross-sectional load analysis results are obtained based on the response amplitude of the four main cross-sectional load parameters: frequency, longitudinal shear force, transverse shear force, torque, and vertical bending moment. After organizing the results of the profile load analysis into a list, the maximum amplitude value is searched to obtain the frequency and wave direction angle corresponding to the maximum amplitude value of the main load parameters of the profile load.

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