Simulation calculation method, device, equipment and medium for impact resistance system with pipeline

By establishing and analyzing the geometric model of the pipeline system and performing modal and spectral analysis, the problem of difficulty in accurately predicting the impact response of the system in the prior art is solved, and the effect of improving impact resistance is achieved.

CN119808327APending Publication Date: 2025-04-11WUHAN UNIV OF TECH

Patent Information

Application Number
CN202510017683.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

The prior art is difficult to accurately predict the response of the belt pipeline system under impact loads, resulting in insufficient impact resistance of the system.

Method used

By establishing a geometric model of each component of the pipeline impact resistance system, and importing the model into simulation software for pre-processing, modal analysis and spectral analysis, the impact response of the system is obtained, and the component parameters are adjusted according to the response to improve impact resistance.

Benefits of technology

The simulation and calculation accuracy of the impact resistance system with pipelines is improved, the accuracy of impact response forecast is enhanced, and the impact resistance of the system is improved by adjusting component parameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a simulation calculation method, device, equipment and medium for an anti-impact system with a pipeline, and belongs to the technical field of simulation computation.The simulation calculation method for the anti-impact system with the pipeline comprises the steps that geometric models of all parts of the anti-impact system with the pipeline are established, and the geometric models are imported into preset simulation software for preprocessing operation; modal analysis is carried out on the geometric model after preprocessing operation, and modal parameters of the anti-impact system with the pipeline are obtained; performing spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain an impact response of the anti-impact system with the pipeline; and according to the impact response, adjusting component parameters of the anti-impact system with the pipeline. According to the method, accurate simulation and calculation are carried out on the impact-resistant system with the pipeline, the component parameters of the impact-resistant system with the pipeline are adjusted, and the impact resistance of the impact-resistant system with the pipeline is improved.
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Description

Technical Field

[0001] The present invention relates to the field of simulation calculation technology, and in particular to a simulation calculation method, device, equipment and medium for a pipeline anti-shock system. Background Art

[0002] When the pipeline system is subjected to impact loads, the system will produce a large impact response. These phenomena will damage the pipeline structure, equipment, etc. of the pipeline system, seriously affecting the life cycle of the pipeline system.

[0003] For a system with pipelines, the response under impact load is very complex because the system contains multiple components such as rafts, equipment, vibration isolators, pipelines, brackets, etc. The existing technology does not clearly define the modeling methods of various components and the contact relationship between components, and cannot reasonably and accurately predict its impact response, and lacks efficient numerical simulation calculation methods.

[0004] Therefore, how to accurately simulate and calculate the pipeline anti-shock system in order to improve the anti-shock capability of the pipeline anti-shock system is an urgent problem to be solved. Summary of the invention

[0005] In view of this, it is necessary to provide a simulation calculation method, device, equipment and medium for a pipeline anti-shock system to improve the anti-shock capability of the pipeline anti-shock system.

[0006] In order to solve the above problems, the present invention provides a simulation calculation method for a pipeline anti-shock system, comprising: Establishing geometric models of various components of the pipeline anti-shock system, and importing the geometric models into a preset simulation software for preprocessing operations; Performing modal analysis on the geometric model after the preprocessing operation to obtain modal parameters of the pipeline anti-shock system; Performing spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-impact system; Parameters of components of the pipeline anti-shock system are adjusted according to the shock response.

[0007] In a possible implementation, the step of importing the geometric model into a preset simulation software for preprocessing includes: Divide the mesh size of each component of the pipeline anti-shock system; Define the material properties of each component of the pipeline anti-shock system; Assemble the components of the pipeline anti-shock system and create constraints based on the engineering requirements between the components of the pipeline anti-shock system; Set boundary conditions for the bottom of the anti-shock system with pipelines.

[0008] In a possible implementation, dividing the grid sizes of the components of the pipeline anti-shock system includes: Dividing the components into first-region components and second-region components according to the complexity of each component, wherein the complexity of the first-region components is less than the complexity of the second-region components; The first area component is divided into a hexahedral mesh, and the second area component is divided into a tetrahedral mesh.

[0009] In a possible implementation, the modal parameters of the pipeline anti-shock system include the modal mass and modal frequency of each mode.

[0010] In a possible implementation, performing spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-shock system includes: Calculate based on the modal mass of each mode to obtain the modal spectrum acceleration of each mode of the pipeline anti-shock system, and establish the modal amplitude curve based on the modal mass, modal frequency and modal acceleration of each mode; The response spectrum of the modal amplitude curve is calculated based on a preset synthesis method to obtain the impact response of the pipeline anti-shock system.

[0011] In a possible implementation, the impact response of the pipeline anti-impact system includes displacement and stress of the anti-impact system.

[0012] In a possible implementation, the component parameters of the pipeline anti-shock system include: the wall thickness of the pipeline and the stiffness of the vibration isolator.

[0013] In a second aspect, the present invention further provides a simulation calculation device for a pipeline anti-shock system, comprising: A model building module is used to build geometric models of various components of the pipeline anti-shock system, and import the geometric models into a preset simulation software for preprocessing operations; A modal analysis module, used for performing modal analysis on the geometric model after the preprocessing operation to obtain modal parameters of the anti-shock system with pipeline; A spectrum analysis module, used for performing spectrum analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-impact system; A parameter adjustment module is used to adjust the component parameters of the pipeline anti-shock system according to the shock response.

[0014] In a third aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-mentioned simulation calculation method for the impact-resistant system with pipelines when executing the computer program.

[0015] In a fourth aspect, the present invention further provides a computer storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the simulation calculation method for a pipeline impact-resistant system are implemented.

[0016] The beneficial effects of the present invention are: The present invention establishes geometric models of various components of the anti-shock system with pipelines, and imports the geometric models into preset simulation software for preprocessing operations, thereby improving the simulation and calculation accuracy of the anti-shock system with pipelines, and obtains modal parameters of the anti-shock system with pipelines by performing modal analysis on the geometric model after the preprocessing operation; performs spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the anti-shock system with pipelines; improves the accuracy of impact response prediction, and adjusts the component parameters of the anti-shock system with pipelines according to the impact response, thereby improving the impact resistance of the anti-shock system with pipelines. 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 method flow chart of an embodiment of a simulation calculation method for a pipeline anti-shock system provided by the present invention; Figure 2 A simplified structural model schematic diagram of a pipeline anti-shock system provided in one embodiment of the present invention; Figure 3 A stress response distribution cloud diagram of a part of a pipeline structure of a pipeline anti-shock system provided by an embodiment of the present invention; Figure 4 A displacement curve diagram of a lower vibration isolator of a base with a pipeline anti-shock system provided by an embodiment of the present invention; Figure 5 A schematic structural diagram of an embodiment of a simulation and calculation device for an anti-shock system with pipelines provided by the present invention; Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

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

[0021] The descriptions of "first", "second", etc. involved in the embodiments of the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the technical features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

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

[0023] A specific embodiment of the present invention, as Figure 1 As shown, Figure 1 A method flow chart of an embodiment of a simulation calculation method for a pipeline anti-shock system provided by the present invention includes: S101: establishing a geometric model of each component of the pipeline anti-shock system, and importing the geometric model into a preset simulation software for preprocessing; S102: performing modal analysis on the geometric model after the preprocessing operation to obtain modal parameters of the pipeline anti-shock system; S103: performing spectrum analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the shock response of the pipeline anti-shock system; S104: Adjusting the component parameters of the pipeline anti-shock system according to the shock response.

[0024] The present invention establishes geometric models of various components of the anti-shock system with pipelines, and imports the geometric models into preset simulation software for preprocessing operations, thereby improving the simulation and calculation accuracy of the anti-shock system with pipelines, and obtains modal parameters of the anti-shock system with pipelines by performing modal analysis on the geometric model after the preprocessing operation; performs spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the anti-shock system with pipelines; improves the accuracy of impact response prediction, and adjusts the component parameters of the anti-shock system with pipelines according to the impact response, thereby improving the impact resistance of the anti-shock system with pipelines.

[0025] In one embodiment of the present invention, the geometric model is imported into a preset simulation software for preprocessing, including: Divide the mesh size of each component of the pipeline anti-shock system; Define the material properties of each component of the pipeline anti-shock system; Assemble the components of the pipeline anti-shock system and create constraints based on the engineering requirements between the components of the pipeline anti-shock system; Set boundary conditions for the bottom of the anti-shock system with pipelines.

[0026] First of all, it should be noted that the present invention uses Abaqus software to carry out simulation calculation research on pipeline anti-shock system. Figure 2 , Figure 2 A schematic diagram of a simplified structural model of an anti-shock system with pipelines provided in one embodiment of the present invention, wherein the anti-shock system with pipelines mainly includes a raft, equipment, vibration isolators, limiters, pipelines, horse feet, and brackets, wherein the pipelines contain pipe fittings and devices such as elbows, tees, elastic penetration parts, bellows, and reducers.

[0027] When using Abaqus software for simulation calculations, it is necessary to adjust the local and overall dimensions of each component, divide the mesh size of each component of the impact-resistant system, and make the mesh unit type as C3D8 as possible, that is, linear hexahedral unit, to improve the accuracy of the calculation results; it is necessary to define the material properties of each component; it is necessary to assemble the components of the piping system through operations such as rotation and translation; it is necessary to create constraints to simulate the engineering requirements between the components; it is necessary to set boundary conditions to completely fix the bottom of the system.

[0028] For example, the present invention first models the pipelines, rafts, equipment and other components in the pipeline impact-resistant system through three-dimensional modeling software, and imports them into Abaqus. In the Part module, the support components in the system are modeled using beam units to obtain a three-dimensional support model.

[0029] In the Mesh module, mesh the various components of the pipeline anti-shock system. According to the complexity of each component, the components are divided into first area components and second area components, wherein the complexity of the first area components is less than that of the second area components; the first area components are meshed with hexahedrons, and the second area components are meshed with tetrahedrons.

[0030] Specifically, each component is first divided into blocks, and some complex components are divided into grids by region through the Partition Cell function, such as dividing the entire pipeline component along the model feature line and dividing it into multiple straight pipes, elbows, and tees along the central symmetry line. Among them, the complexity of straight pipes and elbows is less than that of tees. Straight pipes and elbows are first-region components, and tees are second-region components. When setting the mesh type of the component through the Assign Mesh Control function, the mesh unit type of the first-region component can be set to Hex, that is, hexahedral mesh, as much as possible to improve the accuracy of the simulation calculation results and improve the calculation efficiency. The mesh unit type of some complex regions, that is, the second-region component, is set to Tet, that is, tetrahedral mesh, to ensure that the component is fully meshed; the overall size of the mesh of each component of the pipeline impact-resistant system is determined through the Seed Part function, and the local size of the mesh of each component of the pipeline impact-resistant system is determined through the Seed Edges function. The length of the mesh can be set slightly larger to control the total number of meshes, and the pipeline component can be divided into multiple layers of meshes along the wall thickness direction to improve the calculation accuracy.

[0031] In the Property module, set the material parameters for each component in the system. For non-rigid components, first define the properties of various required materials, such as density, damping, elastic parameters, etc., through the Create Material function. The material parameters of the bracket and pipeline are shown in Tables 1 and 2. Then create a section through the Create Section function. The section type of the pipeline is Beam Constant, and the section type of the bracket is Solid Homogeneous. When creating a section for the bracket, you also need to set the section to the target component through the Assign section function after the section is created to complete the material property definition of the non-rigid component.

[0032] Table 1 Bracket material parameter settings

[0033] Table 2 Pipe material parameter settings

[0034] For rigid parts, such as equipment and chassis, first determine their center of mass, and then select the center of mass to assign the mass and moment of inertia to the parts. For equipment, assign mass 11t and moment of inertia I at the center of mass. xx =5.68×10 6 t mm 2 , I yy =1.27×10 7t mm 2 , I zz =1.19×10 7 t mm 2 For the chassis, a mass of 40.75t and a moment of inertia of I are assigned at the center of mass. xx =1.407×10 8 t mm 2 , I yy =2.19×10 8 t mm 2 , I zz =3.56×10 8 t mm 2 , complete the material property definition of the rigid body component.

[0035] In the Assembly module, use the Create Instance function to import the components into the same collection, and use the Translate Instance, Rotate Instance and other functions to assemble the components of the pipeline anti-shock system.

[0036] In the Interaction module, create a bushing unit type Section through the Create Connector Section function, set the elastic parameters and damping of the isolator, limiter, elastic penetration, and horse foot in different bushing units, and then assign them to different devices according to different bushing unit types through the Create Connector Assignment function, and couple the various components through constraints such as Couping and MPC beam in the Create Constraint function.

[0037] In the Load module, the boundary conditions of the system are set through the Create Boundary Condition function. The isolators and the bottom of the limiters at the bottom of the raft are selected, and the boundary conditions are set to ENCASTRE, that is, completely fixed. In the Job module, the model is submitted for calculation to complete the preprocessing operation of the model.

[0038] In one embodiment of the present invention, modal analysis is performed on the geometric model after the preprocessing operation to obtain modal parameters of the anti-shock system with pipelines, wherein the modal parameters of the anti-shock system with pipelines include the modal mass and modal frequency of each mode.

[0039] It can be understood that in the Step module, by selecting the frequency analysis step, the modal analysis of the pipeline anti-shock system is performed to obtain the modal mass, modal frequency and other data of each mode of the system.

[0040] In one embodiment of the present invention, a spectral analysis is performed on the geometric model after the preprocessing operation based on the modal parameters to obtain the shock response of the pipeline anti-shock system, including: Calculate based on the modal mass of each mode to obtain the modal spectrum acceleration of each mode of the pipeline anti-shock system, and establish the modal amplitude curve based on the modal mass, modal frequency and modal acceleration of each mode; The response spectrum of the modal amplitude curve is calculated based on the preset synthesis method to obtain the shock response of the pipeline anti-shock system.

[0041] It can be understood that the present invention first performs a modal analysis on the anti-shock system with pipelines to obtain the modal frequency and modal mass of the system, and then applies a specified impact load spectrum to each mode, that is, performs a spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the response of the mode, and finally obtains the impact response of the entire system through the modal synthesis method.

[0042] It should be noted that for a system with multiple degrees of freedom, when it is subjected to basic acceleration , then the system's differential equation of motion can be expressed as: ,in, is the mass matrix of the pipeline anti-shock system, is the stiffness matrix, For pipeline anti-shock system acceleration, is the velocity of the pipeline anti-shock system relative to the foundation, is the identity matrix.

[0043] Since the displacement response is the weighted sum of each mode, the modal coordinates are introduced , we can get: , ,in, For pipeline anti-shock system The order mode, For pipeline anti-shock system The coordinates of the first-order mode are obtained by substituting the above two formulas into the differential equation of motion: According to the orthogonality of the system mode vibration shape, the above formula is simplified to: Among them, The multiplication is a constant term, let , substituting the above formula into the simplified formula, we can get: .

[0044] If the initial condition is zero, the modal displacement solution is: . But the solution for the real displacement of the particle in time is: Through the theoretical knowledge of spectrum analysis, we know that the velocity spectrum of dynamic design analysis method is defined as: Therefore, according to the velocity spectrum calculation of the dynamic design analysis method, the system can be obtained Maximum displacement and dynamic force of the first mode: , .

[0045] The system's equation of motion shows that the dynamic force acting on the mass points of the entire system is: Therefore, The first mode acts on the mass point of the system The dynamic force on is: , in In the first mode, the reaction force of the mass point on the foundation is: . In a single degree of freedom system: , therefore, The modal mass of the order mode can be expressed as: .

[0046] By calculating the modal mass of each mode using the spectral acceleration calculation formula, the spectral acceleration of the system can be obtained: , ,in, m a is the modal mass of the equipment, in t; A 0 is the acceleration spectrum, the unit is m / s 2 ; V 0 is the velocity spectrum, the unit is m / s.

[0047] Substitute the modal mass of each mode into the above formula to calculate the spectral acceleration. The summary data is shown in Table 3. Table 3 is a table of modal mass, spectral acceleration and modal frequency. According to this table, create an amplitude curve of Spectrum type, fill in the mass, frequency and damping of each mode, and prepare for the next step.

[0048] In one embodiment of the present invention, the impact response of the anti-shock system with pipelines includes the displacement and stress of the anti-shock system; the component parameters of the anti-shock system with pipelines include the wall thickness of the pipeline and the stiffness of the vibration isolator.

[0049] It can be understood that in the Step module, the response spectrum is calculated by selecting the Response spectrum analysis step, where the response spectrum selects the established amplitude curve and the calculation method selects the NRL synthesis method to obtain the displacement and stress cloud diagram of the system after the superposition of each modal result. Figure 3 As shown, Figure 3This is a stress response distribution cloud diagram of a pipeline structure of a pipeline anti-shock system provided by an embodiment of the present invention. The hotter the color, that is, the redder it is, the greater the stress it is subjected to; the colder the color, that is, the bluer it is, the smaller the stress it is subjected to. Figure 4 As shown, Figure 4 This is a displacement curve of the lower vibration isolator of the base of a pipeline anti-shock system provided by an embodiment of the present invention. As can be seen from the figure, as time goes by, the displacement of the vibration isolator tends to be stable, indicating that the pipeline anti-shock system has a certain anti-shock ability.

[0050] Among them, the NRL synthesis method is used to obtain the impact response of the structure, including the displacement, velocity, acceleration, unit stress, and unit force response of the structure. , is the maximum value of the a-th mode Mises dynamic stress, is the maximum value of Mises dynamic stress in all modes, In addition, if the designed pipeline anti-shock system does not meet the design requirements, the component parameters of the pipeline anti-shock system can be adjusted, such as changing the wall thickness of some pipelines, changing the stiffness of some vibration isolators, etc., by continuously adjusting the component parameters until the designed pipeline anti-shock system meets the design requirements.

[0051] In order to better implement the simulation calculation method of the anti-shock system with pipelines in the embodiment of the present invention, based on the simulation calculation method of the anti-shock system with pipelines, correspondingly, Figure 5 As shown, Figure 5 The present invention provides a schematic diagram of a simulation calculation method for a pipeline anti-shock system according to an embodiment of the present invention. The simulation calculation device 500 for a pipeline anti-shock system includes: The model building module 501 is used to build the geometric model of each component of the pipeline anti-shock system, and import the geometric model into the preset simulation software for pre-processing operation; The modal analysis module 502 is used to perform modal analysis on the geometric model after the preprocessing operation to obtain the modal parameters of the pipeline anti-shock system; The spectrum analysis module 503 is used to perform spectrum analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-impact system; The parameter adjustment module 504 is used to adjust the component parameters of the pipeline anti-shock system according to the shock response.

[0052] The simulation calculation device 500 for the anti-shock system with pipelines provided in the above embodiment can implement the technical solution described in the above embodiment of the simulation calculation method for the anti-shock system with pipelines. The specific implementation principles of the above modules or units can refer to the corresponding contents in the above embodiment of the simulation calculation of the anti-shock system with pipelines, which will not be repeated here.

[0053] like Figure 6 As shown, the present invention also provides an electronic device 600. The electronic device 600 includes a processor 601, a memory 602 and a display 603. Figure 6 Only some components of the electronic device 600 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.

[0054] In some embodiments, the processor 601 may be a central processing unit (CPU), a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 602, such as the simulation calculation method of the pipeline anti-shock system in the present invention.

[0055] In some embodiments, the processor 601 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 601 may be local or remote. In some embodiments, the processor 601 may be implemented in a cloud platform. In one embodiment, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination thereof.

[0056] In some embodiments, the memory 602 may be an internal storage unit of the electronic device 600, such as a hard disk or memory of the electronic device 600. In other embodiments, the memory 602 may also be an external storage device of the electronic device 600, 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 600.

[0057] Furthermore, the memory 602 may include both an internal storage unit of the electronic device 600 and an external storage device. The memory 602 is used to store application software installed in the electronic device 600 and various data.

[0058] In some embodiments, the display 603 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 603 is used to display information of the electronic device 600 and to display a visual user interface. The components 601-603 of the electronic device 600 communicate with each other through a system bus.

[0059] In some embodiments, when the processor 601 executes the simulation calculation program of the pipeline anti-shock system in the memory 602, the following steps may be implemented: Establish the geometric model of each component of the pipeline anti-shock system, and import the geometric model into the preset simulation software for pre-processing; Perform modal analysis on the geometric model after preprocessing to obtain the modal parameters of the pipeline anti-shock system; Based on the modal parameters, the spectral analysis of the geometric model after the preprocessing operation is carried out to obtain the shock response of the pipeline anti-shock system; The component parameters of the pipeline anti-shock system are adjusted according to the shock response.

[0060] It should be understood that: when the processor 601 executes the simulation calculation program of the pipeline anti-shock system in the memory 602, in addition to the above functions, other functions can also be realized. For details, please refer to the description of the corresponding method embodiment above.

[0061] Furthermore, the embodiment of the present invention does not specifically limit the type of the electronic device 600 mentioned, and the electronic device 600 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 devices 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 600 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0062] Accordingly, an embodiment of the present application also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, it can implement the steps or functions in the simulation calculation method of the impact-resistant system with pipelines provided in the above-mentioned method embodiments.

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

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A simulation calculation method for a pipeline anti-shock system, characterized in that: include: Establishing geometric models of various components of the pipeline anti-shock system, and importing the geometric models into a preset simulation software for preprocessing operations; Performing modal analysis on the geometric model after the preprocessing operation to obtain modal parameters of the pipeline anti-shock system; Performing spectral analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-impact system; Component parameters of the pipeline anti-shock system are adjusted according to the shock response.

2. The simulation calculation method of the pipeline anti-shock system according to claim 1 is characterized in that: The step of importing the geometric model into a preset simulation software for preprocessing includes: Divide the mesh size of each component of the pipeline anti-shock system; Define the material properties of each component of the pipeline anti-shock system; Assemble the components of the pipeline anti-shock system and create constraints based on the engineering requirements between the components of the pipeline anti-shock system; Set boundary conditions for the bottom of the anti-shock system with pipelines.

3. The simulation calculation method of the pipeline anti-shock system according to claim 2 is characterized in that: The division of the grid sizes of the components of the pipeline anti-shock system includes: Dividing the components into first-region components and second-region components according to the complexity of each component, wherein the complexity of the first-region components is less than the complexity of the second-region components; The first area component is divided into a hexahedral mesh, and the second area component is divided into a tetrahedral mesh.

4. The simulation calculation method of the pipeline anti-shock system according to claim 1 is characterized in that: The modal parameters of the pipeline anti-shock system include the modal mass and modal frequency of each mode.

5. The simulation calculation method for the pipeline anti-shock system according to claim 4 is characterized in that: The method of performing spectrum analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-shock system includes: Calculate based on the modal mass of each mode to obtain the modal spectrum acceleration of each mode of the pipeline anti-shock system, and establish the modal amplitude curve based on the modal mass, modal frequency and modal acceleration of each mode; The response spectrum of the modal amplitude curve is calculated based on a preset synthesis method to obtain the impact response of the pipeline anti-shock system.

6. The simulation calculation method for the pipeline anti-shock system according to claim 5 is characterized in that: The impact response of the pipeline anti-impact system includes displacement and stress of the anti-impact system.

7. The simulation calculation method of the pipeline anti-shock system according to claim 1 is characterized in that: The component parameters include the wall thickness of the pipeline and the stiffness of the vibration isolator.

8. A simulation calculation device for a pipeline anti-shock system, characterized in that: include: A model building module is used to build geometric models of various components of the pipeline anti-shock system, and import the geometric models into a preset simulation software for preprocessing operations; A modal analysis module, used for performing modal analysis on the geometric model after the preprocessing operation to obtain modal parameters of the anti-shock system with pipelines; A spectrum analysis module, used for performing spectrum analysis on the geometric model after the preprocessing operation based on the modal parameters to obtain the impact response of the pipeline anti-impact system; A parameter adjustment module is used to adjust the component parameters of the pipeline anti-shock system according to the shock response.

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 in the simulation calculation method of the pipeline anti-shock system as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Used to store computer-readable programs or instructions, which, when executed by a processor, can implement the steps in the simulation calculation method for a pipeline anti-shock system as described in any one of claims 1 to 7.

Citation Information

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