CN111062141A - Computer component vibration degree prediction method, device and medium - Google Patents
Computer component vibration degree prediction method, device and medium Download PDFInfo
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Abstract
The application discloses a method, a device and a medium for predicting vibration degree of a computer component, wherein the method comprises the following steps: and importing the geometric data into a modeling program to establish a structural geometric model and a fluid geometric model corresponding to the interactive surface, respectively importing the geometric data into a pre-constructed structural numerical analysis program and a pre-constructed fluid numerical analysis program, and setting parameters used for respective calculation. And then setting interactive solving parameters of fluid-solid coupling simulation analysis, solving according to the interactive solving parameters to obtain target vibration parameters, and finally comparing with preset vibration parameter upper limits to determine whether the vibration degree of each part meets the requirements. By adopting the technical scheme, the numerical analysis result of the vibration degree of the component under the dual functions of flow field disturbance caused by heat dissipation of the whole machine and structural excitation caused by rotation of the fan and hardware can be obtained, multi-round testing is not required, the problem of long testing period is avoided, and the research and development cost and the research and development period of an enterprise are reduced.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method, an apparatus, and a medium for predicting a vibration level of a computer component.
Background
The normal and stable work of each part of the computer is a basic condition for guaranteeing the operational performance of the whole computer, and each part of the computer has a series of requirements on the working environment during operation, wherein the requirements also include the limit related to the vibration degree. If the component mounting location has too much vibration amplitude, or a vibration frequency that can cause the core component to resonate, this can have a severe impact on the computer performance. This vibration effect is usually caused by both the flow field disturbance caused by the overall heat dissipation and the structural excitation caused by the rotation of the fan and hardware. Therefore, in the whole structure research and development process of the computer, it becomes an essential step to evaluate whether the vibration degree of each part can cause the reduction of the hardware performance in the working state of the whole computer.
In the prior art, performance parameters of each part of a computer in a complete machine working state are generally verified through a complete machine product reliability test, and the research and development cost and the research and development period of an enterprise are obviously increased. In addition, the test period is long in the test process.
Disclosure of Invention
The application aims to provide a method, a device and a medium for predicting the vibration degree of computer components, which are used for predicting the vibration degree of each component of a computer, do not need to test for many times, and reduce the research and development cost and the research and development period.
In order to solve the above technical problem, the present application provides a method for predicting a vibration level of a computer component, including:
introducing geometric data of each part of a target computer into a pre-constructed modeling program to establish a structural geometric model and a fluid geometric model corresponding to an interactive surface;
importing the structural geometric model into a pre-constructed structural numerical analysis program, and setting parameters used for calculation on the structural geometric model;
introducing the fluid geometric model into a pre-constructed fluid numerical analysis program, and setting parameters used for calculation on the fluid geometric model;
setting interactive solving parameters of fluid-solid coupling simulation analysis;
solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of all parts of the target computer;
and comparing the target vibration parameter with a preset upper limit of the vibration parameter to determine whether the vibration degree of each part meets the requirement.
Preferably, before the building the structure geometric model and the fluid geometric model, the method further comprises:
and simplifying the geometric data according to a prestored simplifying rule.
Preferably, the parameters used for the calculation of the structural geometric model setting include:
carrying out structural grid division on the geometric structure model, and giving structural material parameters and structural attributes;
establishing a structural connection relation and a structural contact relation among the components in the geometric structure model;
and adding structural boundary information to the geometric structure model and setting structural solving parameters.
Preferably, the structural meshing of the geometric model specifically includes:
meshing beam units located at the axis position of the component, meshing shell units located at the mid-plane position of the component, and meshing body units occupying the space position of the component;
the parameters given to the structural material specifically include: giving an elastoplastic material parameter or giving a rigid material parameter;
the giving of the structural attributes specifically includes: giving section or thickness information and a grid unit mathematical constitutive type;
the structural connection relationship comprises rigid connection without relative movement and joint connection with freedom of movement;
the structural contact relationships include a component contact relationship without relative penetration and a constrained contact relationship without relative motion;
the structural boundary information comprises motion freedom degree constraint information, vibration load excitation information and fluid-solid coupling analysis interaction surface definition information borne by a complete machine structural model;
the structure solving parameters comprise transient structure calculation formula control parameters, time step length control parameters and result output control parameters.
Preferably, the parameters used for the calculation of the fluid geometric model setting include:
carrying out fluid mesh division on the fluid structure model, and giving fluid material parameters;
and adding fluid boundary information to the fluid structure model and setting fluid solving parameters.
Preferably, the structural meshing of the fluid structure model specifically includes: dividing the body unit in the initial state and setting dynamic grid control parameters in the calculation process;
the imparting a fluid material parameter comprises imparting a compressible fluid material parameter;
the fluid boundary information comprises inlet/outlet boundary conditions of the whole machine fluid model and fluid-solid coupling analysis interaction surface definition information;
the fluid solving parameters comprise transient turbulence calculation formula control parameters, time step control parameters and result output control parameters.
Preferably, the interaction solving parameters include a fluid-solid coupling analysis time step control parameter, an interaction surface physical quantity transmission control parameter and a calculation convergence control parameter.
In order to solve the above technical problem, the present application further provides a device for predicting a degree of vibration of a computer component, including:
the first importing module is used for importing the geometric data of each part of the target computer into a pre-constructed modeling program so as to establish a structural geometric model and a fluid geometric model corresponding to the interactive surface;
the second import module is used for importing the structural geometric model into a pre-constructed structural numerical analysis program and setting parameters used for calculation on the structural geometric model;
the third import module is used for importing the fluid geometric model into a pre-constructed fluid numerical analysis program and setting parameters used for calculation on the fluid geometric model;
the setting module is used for setting interactive solving parameters of fluid-solid coupling simulation analysis;
the solving module is used for solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of all parts of the target computer;
and the comparison module is used for comparing the target vibration parameter with a preset vibration parameter upper limit so as to determine whether the vibration degree of each part meets the requirement.
In order to solve the above technical problem, the present application further provides a device for predicting a vibration level of a computer component, including a memory for storing a computer program;
a processor for implementing the steps of the method for predicting a degree of vibration of a computer component as described when executing said computer program.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium having a computer program stored thereon, where the computer program is executed by a processor to implement the steps of the vibration level prediction method of a computer component as described above.
The method for predicting the vibration degree of the computer component comprises the following steps: the method comprises the steps of introducing geometric data of all parts of a target computer into a pre-constructed modeling program to establish a structural geometric model and a fluid geometric model corresponding to an interaction surface, introducing the structural geometric model into a pre-constructed structural numerical analysis program, setting parameters used for calculation on the structural geometric model, introducing the fluid geometric model into the pre-constructed fluid numerical analysis program, and setting parameters used for calculation on the fluid geometric model. And setting interactive solving parameters of fluid-solid coupling simulation analysis, solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of each component of the target computer, and comparing the target vibration parameters with preset upper limit of the vibration parameters to determine whether the vibration degree of each component meets the requirement. Therefore, by adopting the technical scheme, the numerical analysis result of the vibration degree of the component under the double actions of flow field disturbance caused by heat dissipation of the whole machine and structural excitation caused by rotation of the fan and hardware can be obtained, multi-round testing is not needed, the problem of long testing period is avoided, the research and development cost and research and development period of enterprises are reduced, and in addition, compared with methods such as finite difference analysis, finite element analysis and the like, the method has the advantages that the multi-physical field factors considered during analysis are comprehensive, and the result reliability is high.
The present application also provides an apparatus for predicting a degree of vibration of a computer component and a computer storage medium, which correspond to the above-described method, and have the same effects as described above.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a flow chart of a method for predicting vibration level of a computer component according to an embodiment of the present disclosure;
FIG. 2 is a flowchart of parameters used for setting and calculating a geometric model of a structure according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of parameters used in the calculation of the fluid geometric model setting provided by an embodiment of the present application;
fig. 4 is a block diagram of a vibration level prediction apparatus for a computer component according to an embodiment of the present application;
fig. 5 is a block diagram of another apparatus for predicting a degree of vibration of a computer component according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a method, a device and a medium for predicting the vibration degree of a computer component.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for predicting a vibration level of a computer component according to an embodiment of the present disclosure. As shown in fig. 1, the method includes:
s10: and importing the geometric data of each part of the target computer into a pre-constructed modeling program to establish a structural geometric model and a fluid geometric model corresponding to the interaction surface.
In this embodiment, the interaction surface includes corresponding surfaces of identical shape and position, and the positions of the fluid and the structure in contact with the corresponding surfaces are respectively subordinate to the fluid and the structure. It can be understood that the pre-constructed modeling program can be Space Claim, which is widely applied to the international industrial field for the new generation of 3D high-efficiency modeling software, obviously shortens the product design period, greatly improves the model processing quality and efficiency of CAE analysis, and brings brand new product design experience for users.
Generally, in the process of computer development, designers generate a complete machine geometric model containing detail features of components according to development requirements, and then send the complete machine geometric model to an analysis engineer for performance evaluation and analysis. In this embodiment, the geometric data is CATIA. In order to simplify the subsequent calculation process, before the building of the structural geometric model and the fluid geometric model, the method further comprises the following steps: the geometric data is simplified according to a pre-stored simplification rule. The simplification rule is to simplify detailed features and components which have small influence on an analysis result, then generate flow field data by using an enclosure function, and finally appropriately correct the structural geometric data and the fluid geometric data to obtain a structural geometric model and a fluid geometric model.
S11: and (3) importing the structural geometric model into a pre-constructed structural numerical analysis program, and setting parameters used for calculation on the structural geometric model.
The Structural numerical analysis program constructed in advance in this embodiment can be implemented by a Transient Structural module under the ANSYS works bond platform. It is understood that the parameters used for the calculation corresponding to the structural geometric model may be determined according to actual situations, and the embodiment is not limited.
S12: and (3) introducing the fluid geometric model into a pre-constructed fluid numerical analysis program, and setting parameters used for calculation on the fluid geometric model.
It should be noted that steps S11 and S12 are not in strict sequence, and S11 may be executed first and then S12 is executed, or S12 may be executed first and then S11 is executed.
The pre-constructed fluid data analysis program in this embodiment can be implemented by a Fluent module under the ANSYS works book platform. It is understood that the parameters used for the calculation corresponding to the fluid geometric model may be determined according to actual conditions, and the embodiment is not limited.
S13: and setting interactive solving parameters of fluid-solid coupling simulation analysis.
In a specific embodiment, interactive solution parameters of fluid-solid Coupling simulation analysis may be set in the System Coupling module and calculated. It can be understood that the interaction solution parameters need to be determined according to actual conditions, and the embodiment is not limited.
S14: and solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of each part of the target computer.
In a specific implementation, the POST-processing and engineering interpretation of the results can be performed in a Mechanical module and a CFD-POST module. And in the result post-processing, judging the vibration degree of the component by generating an acceleration curve of a central non-deformation area of the component to obtain a target vibration parameter of the component.
S15: and comparing the target vibration parameter with a preset upper limit of the vibration parameter to determine whether the vibration degree of each part meets the requirement.
It should be noted that, for different components, the vibration frequency and the vibration amplitude have a certain corresponding relationship, and after the target vibration parameter is obtained, it needs to be determined according to the vibration frequency and the vibration amplitude of the corresponding component, for example, if the target vibration parameter is a vibration parameter of hardware, it needs to be compared with an upper limit of the vibration parameter of the hard disk, and if the target vibration parameter exceeds the upper limit, it indicates that the hard disk has a severe vibration degree, and the hard disk does not meet the requirement. Furthermore, the stress strain cloud picture and the flow field vector diagram or the flow chart of the whole structure can be used for positioning the reasons of vibration generation and providing an optimization design scheme.
In other embodiments, an alarm signal may be output when it is determined that the level of vibration is not satisfactory.
The method for predicting the vibration degree of the computer component provided by the embodiment comprises the following steps: the method comprises the steps of introducing geometric data of all parts of a target computer into a pre-constructed modeling program to establish a structural geometric model and a fluid geometric model corresponding to an interaction surface, introducing the structural geometric model into a pre-constructed structural numerical analysis program, setting parameters used for calculation on the structural geometric model, introducing the fluid geometric model into the pre-constructed fluid numerical analysis program, and setting parameters used for calculation on the fluid geometric model. And setting interactive solving parameters of fluid-solid coupling simulation analysis, solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of each component of the target computer, and comparing the target vibration parameters with preset upper limit of the vibration parameters to determine whether the vibration degree of each component meets the requirement. Therefore, by adopting the technical scheme, the numerical analysis result of the vibration degree of the component under the double actions of flow field disturbance caused by heat dissipation of the whole machine and structural excitation caused by rotation of the fan and hardware can be obtained, multi-round testing is not needed, the problem of long testing period is avoided, the research and development cost and research and development period of enterprises are reduced, and in addition, compared with methods such as finite difference analysis, finite element analysis and the like, the method has the advantages that the multi-physical field factors considered during analysis are comprehensive, and the result reliability is high.
Fig. 2 is a flowchart of parameters used for setting and calculating a geometric model of a structure according to an embodiment of the present disclosure. As shown in fig. 2, the method comprises the following steps:
s20: and carrying out structural meshing on the geometric structure model, and giving structural material parameters and structural attributes.
As a preferred embodiment, in structural meshing of the geometric model, it is possible to mesh the beam cells at the position of the axis of the part, the shell cells at the position of the mid-plane of the part, and the body cells occupying the spatial position of the part. The parameters given to the structural material specifically include: giving elastoplastic material parameters or giving rigid material parameters, giving structural properties specifically including: giving cross section or thickness information and a type of mathematical constitutive of the grid cells. When the structural grid is divided, the target size of the unit is 4mm, the critical area is 2mm, the shell unit is preferably a regular quadrangle, and the body unit is preferably a regular hexahedron. Preferably, the cushioning component imparts a superelastic material parameter, the non-cushioning component imparts an elastic material, and the connecting component imparts a rigid material.
S21: and establishing a structural connection relation and a structural contact relation among all parts in the geometric structure model.
Wherein, the structure connection relationship comprises rigid connection without relative movement and joint connection with movement freedom. The structural contact relationships include component contact relationships without relative penetration and constrained contact relationships without relative motion. Usually, the connection relation between the structural members is rigid connection, and the connection part of the outer wall of the case and the sliding rail is connected by a joint with freedom of movement, i.e. the freedom is fully restricted.
S22: and adding structural boundary information to the geometric structure model and setting structural solving parameters.
The structural boundary information comprises motion freedom degree constraint information, vibration load excitation information and fluid-solid coupling analysis interaction surface definition information borne by a complete machine structural model. The structure solving parameters comprise transient structure calculation formula control parameters, time step length control parameters and result output control parameters. And applying working state vibration load excitation information measured in advance by a monomer vibration test to the mounting positions of the fans and the hard disk.
Fig. 3 is a flowchart of parameters used for setting calculation of a fluid geometric model according to an embodiment of the present application. As shown in fig. 3, the method comprises the following steps:
s30: and carrying out fluid meshing on the fluid structure model, and giving parameters to the fluid material.
Wherein, the structural meshing of the fluid structure model specifically comprises: and (3) dividing the body unit in the initial state and setting dynamic grid control parameters in the calculation process. When dividing the fluid grids, the unit target size is 4mm, the key area is 1mm, the body unit is a regular tetrahedron grid, smoothening and remeshing options under the Dynamic Mesh are selected, and corresponding setting and area selection are carried out. The fluid material property is a property of air at room temperature, and in particular, the parameter imparted to the fluid material comprises a parameter imparted to a compressible fluid material.
S31: adding fluid boundary information to the fluid structure model and setting fluid solving parameters.
The fluid boundary information comprises inlet/outlet boundary conditions of the whole machine fluid model and fluid-solid coupling analysis interaction surface definition information. The fluid solving parameters comprise transient turbulence calculation formula control parameters, time step length control parameters and result output control parameters. In one embodiment, the inlet boundary condition is the fan operating condition inlet air volume and the outlet boundary condition is 0Pa pressure. Preferably, the calculation model selects k-epsilon realatable owned wall flow, the solution mode selects coupled, and the initialization mode selects hybrid.
On the basis of the above embodiment, the interaction solving parameters include a fluid-solid coupling analysis time step control parameter, an interaction surface physical quantity transmission control parameter, and a calculation convergence control parameter. Specifically, the simulation time can be set to 0.2s, and the fluid-solid coupling analysis time step control parameter can be set to 5s-7 s. The interactive surface physical quantity transmission control parameters mainly represent that the structure surface at the interactive surface transmits displacement data to the corresponding fluid surface, and the fluid surface transmits pressure data to the corresponding structure surface, so that the parameters can be determined according to actual conditions.
In the above embodiments, the method for predicting the degree of vibration of a computer component is described in detail, and the present application also provides embodiments corresponding to the apparatus for predicting the degree of vibration of a computer component. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Fig. 4 is a block diagram of a vibration level prediction apparatus for a computer component according to an embodiment of the present application. As shown in fig. 4, the apparatus includes:
the first importing module 10 is used for importing the geometric data of each part of the target computer into a pre-constructed modeling program so as to establish a structural geometric model and a fluid geometric model corresponding to the interaction surface;
the second import module 11 is configured to import the structural geometric model into a pre-constructed structural numerical analysis program, and set parameters used for calculation on the structural geometric model;
a third import module 12, configured to import the fluid geometric model into a pre-constructed fluid numerical analysis program, and set parameters used for calculation on the fluid geometric model;
the setting module 13 is used for setting interactive solving parameters of fluid-solid coupling simulation analysis;
the solving module 14 is used for solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of each component of the target computer;
and the comparison module 15 is used for comparing the target vibration parameter with a preset vibration parameter upper limit to determine whether the vibration degree of each part meets the requirement.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
The device for predicting the vibration degree of the computer component provided by this embodiment is configured to first introduce the geometric data of each component of the target computer into a pre-constructed modeling program to establish a structural geometric model and a fluid geometric model corresponding to the interaction surface, then introduce the structural geometric model into a pre-constructed structural numerical analysis program, set parameters used for calculation on the structural geometric model, and introduce the fluid geometric model into a pre-constructed fluid numerical analysis program, and set parameters used for calculation on the fluid geometric model. And finally, solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of each component of the target computer, and comparing the target vibration parameters with preset upper limits of the vibration parameters to determine whether the vibration degree of each component meets the requirements. Therefore, by adopting the technical scheme, the numerical analysis result of the vibration degree of the component under the double actions of flow field disturbance caused by heat dissipation of the whole machine and structural excitation caused by rotation of the fan and hardware can be obtained, multi-round testing is not needed, the problem of long testing period is avoided, the research and development cost and research and development period of enterprises are reduced, and in addition, compared with methods such as finite difference analysis, finite element analysis and the like, the method has the advantages that the multi-physical field factors considered during analysis are comprehensive, and the result reliability is high.
Fig. 5 is a block diagram of another apparatus for predicting a degree of vibration of a computer component according to an embodiment of the present application. As shown in fig. 5, a vibration level prediction apparatus of a computer part includes a memory 20 for storing a computer program;
the processor 21 is configured to implement the steps of the method for predicting the degree of vibration of a computer component as described in the above method embodiment when executing the computer program.
The device for predicting the vibration level of the computer component provided by the embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, or a desktop computer.
The processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 21 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 21 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 21 may further include an AI (Artificial Intelligence) processor for processing a calculation operation related to machine learning.
The memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing a computer program 201, wherein the computer program is loaded and executed by the processor 21, and then the relevant steps of the vibration level prediction method of the computer component disclosed in any of the foregoing embodiments can be implemented. In addition, the resources stored in the memory 20 may also include an operating system 202, data 203, and the like, and the storage manner may be a transient storage manner or a permanent storage manner. Operating system 202 may include, among others, Windows, Unix, Linux, and the like. Data 203 may include, but is not limited to, the data mentioned above, and the like.
In some embodiments, the diagnostic device 20 may further include a display screen 22, an input/output interface 23, a communication interface 22, a power supply 25, and a communication bus 26.
It will be appreciated by those skilled in the art that the configuration shown in fig. 5 does not constitute a limitation of the vibration level prediction means of the computer component and may comprise more or less components than those shown.
The device for predicting the vibration degree of the computer component provided by the embodiment of the application comprises a memory and a processor, wherein the processor can realize the steps described in the embodiment of the method when executing the program stored in the memory. Therefore, by adopting the technical scheme, the numerical analysis result of the vibration degree of the component under the double actions of flow field disturbance caused by heat dissipation of the whole machine and structural excitation caused by rotation of the fan and hardware can be obtained, multi-round testing is not needed, the problem of long testing period is avoided, the research and development cost and research and development period of enterprises are reduced, and in addition, compared with methods such as finite difference analysis, finite element analysis and the like, the method has the advantages that the multi-physical field factors considered during analysis are comprehensive, and the result reliability is high.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In the computer-readable storage medium provided by this embodiment, when a stored computer program is executed, each step in the above method embodiments can be implemented, and thus, by using the technical scheme, a numerical analysis result of the component vibration degree under the dual actions of flow field disturbance caused by heat dissipation of the whole machine and structural excitation caused by rotation of the fan and hardware can be obtained, a multi-round test is not required, the problem of a long test period is avoided, and research and development costs and research and development periods of an enterprise are reduced.
The method, apparatus, and medium for predicting vibration level of a computer component provided in the present application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method for predicting a vibration level of a computer component, comprising:
introducing geometric data of each part of a target computer into a pre-constructed modeling program to establish a structural geometric model and a fluid geometric model corresponding to an interactive surface;
importing the structural geometric model into a pre-constructed structural numerical analysis program, and setting parameters used for calculation on the structural geometric model;
introducing the fluid geometric model into a pre-constructed fluid numerical analysis program, and setting parameters used for calculation on the fluid geometric model;
setting interactive solving parameters of fluid-solid coupling simulation analysis;
solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of all parts of the target computer;
and comparing the target vibration parameter with a preset upper limit of the vibration parameter to determine whether the vibration degree of each part meets the requirement.
2. The method of predicting the degree of vibration of a computer component according to claim 1, further comprising, prior to establishing the structural geometric model and the fluid geometric model:
and simplifying the geometric data according to a prestored simplifying rule.
3. The method of predicting the degree of vibration of a computer component according to claim 1, wherein the parameters used for the calculation of the structural geometric model setting include:
carrying out structural grid division on the geometric structure model, and giving structural material parameters and structural attributes;
establishing a structural connection relation and a structural contact relation among the components in the geometric structure model;
and adding structural boundary information to the geometric structure model and setting structural solving parameters.
4. The method of predicting the degree of vibration of a computer component according to claim 3, wherein said structurally meshing said geometric model comprises in particular:
meshing beam units located at the axis position of the component, meshing shell units located at the mid-plane position of the component, and meshing body units occupying the space position of the component;
the parameters given to the structural material specifically include: giving an elastoplastic material parameter or giving a rigid material parameter;
the giving of the structural attributes specifically includes: giving section or thickness information and a grid unit mathematical constitutive type;
the structural connection relationship comprises rigid connection without relative movement and joint connection with freedom of movement;
the structural contact relationships include a component contact relationship without relative penetration and a constrained contact relationship without relative motion;
the structural boundary information comprises motion freedom degree constraint information, vibration load excitation information and fluid-solid coupling analysis interaction surface definition information borne by a complete machine structural model;
the structure solving parameters comprise transient structure calculation formula control parameters, time step length control parameters and result output control parameters.
5. The method of predicting the degree of vibration of a computer component according to claim 1, wherein the parameters used for the calculation of the fluid geometric model setting include:
carrying out fluid mesh division on the fluid structure model, and giving fluid material parameters;
and adding fluid boundary information to the fluid structure model and setting fluid solving parameters.
6. The method of predicting the degree of vibration of a computer component according to claim 5, wherein said structurally meshing said fluid structure model comprises in particular: dividing the body unit in the initial state and setting dynamic grid control parameters in the calculation process;
the imparting a fluid material parameter comprises imparting a compressible fluid material parameter;
the fluid boundary information comprises inlet/outlet boundary conditions of the whole machine fluid model and fluid-solid coupling analysis interaction surface definition information;
the fluid solving parameters comprise transient turbulence calculation formula control parameters, time step control parameters and result output control parameters.
7. The method of predicting the degree of vibration of a computer component according to claim 1, wherein the interaction solution parameters include a fluid-solid coupling analysis time step control parameter, an interaction surface physical quantity transfer control parameter, and a calculation convergence control parameter.
8. An apparatus for predicting a degree of vibration of a computer component, comprising:
the first importing module is used for importing the geometric data of each part of the target computer into a pre-constructed modeling program so as to establish a structural geometric model and a fluid geometric model corresponding to the interactive surface;
the second import module is used for importing the structural geometric model into a pre-constructed structural numerical analysis program and setting parameters used for calculation on the structural geometric model;
the third import module is used for importing the fluid geometric model into a pre-constructed fluid numerical analysis program and setting parameters used for calculation on the fluid geometric model;
the setting module is used for setting interactive solving parameters of fluid-solid coupling simulation analysis;
the solving module is used for solving the structural geometric model and the fluid geometric model according to the interactive solving parameters to obtain target vibration parameters of all parts of the target computer;
and the comparison module is used for comparing the target vibration parameter with a preset vibration parameter upper limit so as to determine whether the vibration degree of each part meets the requirement.
9. An apparatus for predicting a degree of vibration of a computer component, comprising a memory for storing a computer program;
a processor for implementing the steps of the method of predicting a degree of vibration of a computer component as claimed in any one of claims 1 to 7 when executing said computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method for predicting a degree of vibration of a computer component according to any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113239588A (en) * | 2021-05-13 | 2021-08-10 | 浪潮商用机器有限公司 | Method, device, equipment and medium for analyzing performance of integrated circuit chip pin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1696356A1 (en) * | 2005-02-24 | 2006-08-30 | Siemens Aktiengesellschaft | Flow acoustic simulation with the Lattice-Boltzmann method |
| CN102880757A (en) * | 2012-09-27 | 2013-01-16 | 西北农林科技大学 | Micro-irrigation pressure adjuster design method based on fluid-solid coupling numerical calculation |
| CN108763741A (en) * | 2018-05-28 | 2018-11-06 | 青岛科技大学 | A kind of hydraulic hose fluid structurecoupling Numerical Predicting Method |
| CN110348061A (en) * | 2019-06-14 | 2019-10-18 | 西南交通大学 | A kind of two-way fluid structurecoupling Three-dimensional Numerical Simulation Method of high speed pantograph |
-
2019
- 2019-12-29 CN CN201911386424.5A patent/CN111062141B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1696356A1 (en) * | 2005-02-24 | 2006-08-30 | Siemens Aktiengesellschaft | Flow acoustic simulation with the Lattice-Boltzmann method |
| CN102880757A (en) * | 2012-09-27 | 2013-01-16 | 西北农林科技大学 | Micro-irrigation pressure adjuster design method based on fluid-solid coupling numerical calculation |
| CN108763741A (en) * | 2018-05-28 | 2018-11-06 | 青岛科技大学 | A kind of hydraulic hose fluid structurecoupling Numerical Predicting Method |
| CN110348061A (en) * | 2019-06-14 | 2019-10-18 | 西南交通大学 | A kind of two-way fluid structurecoupling Three-dimensional Numerical Simulation Method of high speed pantograph |
Non-Patent Citations (1)
| Title |
|---|
| 刘宜;白茂宁;程效锐;贾程莉;: "螺旋离心泵的双向流固耦合分析" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113239588A (en) * | 2021-05-13 | 2021-08-10 | 浪潮商用机器有限公司 | Method, device, equipment and medium for analyzing performance of integrated circuit chip pin |
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