CN112199880A - A radome parameterization and strength fast analysis simulation system - Google Patents
A radome parameterization and strength fast analysis simulation system Download PDFInfo
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- CN112199880A CN112199880A CN202011166591.1A CN202011166591A CN112199880A CN 112199880 A CN112199880 A CN 112199880A CN 202011166591 A CN202011166591 A CN 202011166591A CN 112199880 A CN112199880 A CN 112199880A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- H—ELECTRICITY
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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Abstract
本发明公开了一种天线罩参数化及强度快速分析仿真系统，包括：模型输入模块、材料物性参数模块、网格划分模块、载荷加载模块、边界条件设置模块、求解模块、优化模块以及后处理模块,八个模块均通过单独的插件实现该模块相应的功能需求。由此，本发明提供了一款基于商用软件ABAQUS二次开发设计出的、能够实现天线罩结构强度快速设计迭代功能的仿真软件，其通过参数化建模，在确保设计可靠的同时，可以大大提升技术人员的设计效率，从诸多设计方案中，选择最优的方案。
The invention discloses a simulation system for parameterization and strength rapid analysis of a radome, comprising: a model input module, a material physical property parameter module, a mesh division module, a load loading module, a boundary condition setting module, a solution module, an optimization module and post-processing The eight modules all implement the corresponding functional requirements of the module through separate plug-ins. Therefore, the present invention provides a simulation software based on the secondary development and design of the commercial software ABAQUS, which can realize the rapid design iteration function of the radome structure strength. Improve the design efficiency of technicians, and choose the best solution from many design solutions.
Description
Technical Field
The invention relates to the field of antenna housing design, in particular to an antenna housing parameterization and strength rapid analysis simulation system.
Background
With the rapid development of computing technology and computers, finite element software is also rapidly developed, and functions are increasingly powerful. At present, the internationally and widely adopted general finite element software comprises ANSYS, MSC, ABAQUS and the like. Computing with commercial software is now an important tool in scientific research. Due to the wide range of engineering problems, different users have different professional backgrounds and development directions, and general software is not necessary to be deficient in specific professional aspects. Aiming at the defects, most general software provides a secondary development function to help users reduce repetitive programming work, improve development starting points, shorten the development period, reduce the development cost, simplify the later maintenance work and bring convenience to the users. Therefore, development based on a general software platform is an important development direction of current research.
However, at present, a designer of the radome hardly considers finite element modeling, analysis and optimization of structural statics, dynamics and a temperature field, material selection, structural sizing and the like, so that the field needs to develop simulation software capable of rapidly designing the structural strength of the iterative radome.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to solve the technical problems that: the method has the advantages of realizing the parameterized modeling, the strength analysis and the fast iterative optimization of the model structure of the model, reducing the repetitive work, improving the efficiency of design development and model determination, shortening the development period and reducing the development cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an antenna housing parameterization and intensity rapid analysis simulation system, comprising: a model input module, a material physical property parameter module, a grid division module, a load loading module, a boundary condition setting module, a solving module, an optimization module and a post-processing module, wherein,
the model input module is used for establishing a model according to the requirements of a user;
the material physical property parameter module is used for defining various material parameters according to different selections of a user on the antenna housing material, and providing default material parameters for debugging of the user;
the grid division module is used for dividing the finite element grid according to the input requirement, ensuring the grid quality and ensuring the subsequent strength analysis and the optimization design to be carried out smoothly;
the load loading module is used for selecting different areas according to actual working conditions and applying a temperature field, static loads and dynamic loads;
the boundary condition setting module is used for applying corresponding boundary conditions according to specific application scenes to ensure smooth calculation;
the solving module is used for submitting abaqus operation;
the optimization module is used for calling the isight optimization software to optimize the design scheme according to the requirement of the optimization design;
the post-processing module is used for calling a calculation result and analyzing stress and deformation of a key area;
the model input module, the material physical property parameter module, the grid division module, the load loading module, the boundary condition setting module, the solving module, the optimization module and the post-processing module all realize the corresponding functional requirements of the modules through independent plug-ins.
On the basis of the technical scheme, the invention can be further improved as follows.
Preferably, the model input module supports the creation of models using analytical methods, including but not limited to: a spherical multi-cone shape; a ball head, a gate curve section and a multi-cone shape; a bulb, a power curve and a multi-cone shape; a ball head, a transition arc and a multi-cone shape; discrete point coordinates; non-circular cross-sectional profile.
Preferably, the model input module also supports a three-dimensional model direct import function, and the format is a general commercial three-dimensional model format.
Preferably, the material property parameter module is provided with a material property library, and the materials include but are not limited to: pure ceramic materials, fiber reinforced ceramic matrix composite materials, fiber reinforced resin matrix composite materials, metal materials and bonding glue.
Preferably, the grid division module has the capability of automatically dividing the structured grid, can perform block modeling on the main cover body, the connecting rings, the glue layer and the pins, and is controllable in grid density; the main shields may be grouped by layer, and the material properties may be defined separately by layer.
Preferably, the load loading module completes three-dimensional aerodynamic force, inertial overload and three-dimensional temperature load loading according to a specified data format, has static loading and transient loading functions, and can solve structural resultant force for any integral point.
Preferably, the boundary condition setting module can automatically realize the loading of the radome structure boundary conditions, and the boundary conditions include but are not limited to displacement constraint and contact pair setting.
Preferably, the solving module can automatically configure a default solver, and a user can view the solver settings and can manually configure the low-level settings.
Preferably, the optimization module can optimize parameters such as the number, distribution and diameter of pins, the thickness of the radome, parameters of an inner profile curve and the like, support common optimization algorithms including a single-target/multi-target function optimization function, and can customize optimization variables and a target function.
Preferably, the post-processing module has a visualization processing capability, and providing the drawing type includes: surface, slice, iso-surface, cross-section, arrow, and line drawing; the data visualization may be extended to complex physical quantities by inputting mathematical expressions of unknown field variables.
Compared with the prior art, the invention has the following technical effects:
1. in the parametric modeling part of the antenna housing, the method can establish a model according to relevant parameters provided by a user, define relevant materials and endow the relevant materials to the model, divide a grid, define and apply relevant loads and boundary conditions, simplify the modeling process and reduce the modeling difficulty;
2. in the strength analysis part of the antenna housing, a solver is configured according to the setting of a user, a simulation analysis result is displayed, the visual post-processing capability is realized, and a cloud chart and the like of the display result can be set according to the user requirement;
3. in the antenna housing structure optimization part, an optimized model structure can be obtained according to user-defined optimization variables and an objective function;
in summary, the invention provides simulation software which is designed based on the commercial software ABAQUS secondary development and can realize the rapid design iteration function of the structural strength of the radome, and the simulation software can greatly improve the design efficiency of technicians while ensuring the design reliability through parametric modeling, and selects an optimal scheme from a plurality of design schemes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a radome parameterization and strength rapid analysis simulation system according to the present invention;
FIG. 2 is a general idea diagram of the development of the ABAQUS plug-in of the present invention;
in the drawings, the parts names represented by the respective reference numerals are listed as follows:
100-a model input module; 200-material physical property parameter module; 300-a mesh partitioning module;
400-load loading module; 500-a boundary condition setting module; 600-a solving module;
700-an optimization module; 800-post-processing module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a radome parameterization and strength rapid analysis simulation system according to the present invention. The antenna housing parameterization and strength rapid analysis simulation system comprises: a model input module 100, a material property parameter module 200, a mesh partitioning module 300, a load loading module 400, a boundary condition setting module 500, a solving module 600, an optimization module 700, and a post-processing module 800, wherein,
the model input module 100 is used for establishing a model according to user requirements;
specifically, the model input module in the invention supports the model creation by adopting an analytic method, and comprises the following steps: (1) a spherical multi-cone shape; (2) a ball head, a gate curve section and a multi-cone shape; (3) a bulb, a power curve and a multi-cone shape; (4) a ball head, a transition arc and a multi-cone shape; (5) discrete point coordinates; (6) a non-circular cross-sectional profile;
the model input module also supports the direct import function of the three-dimensional model, and the format is a general commercial three-dimensional model format, such as iges/prt and the like;
the material physical property parameter module 200 is configured to define various material parameters according to different selections of the antenna housing material by a user, and provide default material parameters for the user to debug;
specifically, the material property parameter module in the invention is provided with a material property library, which comprises six types of materials: pure ceramic materials, fiber reinforced ceramic matrix composite materials, fiber reinforced resin matrix composite materials, metal materials and bonding glue; the material has the constitutive capacity of simulating/defining materials such as isotropy, orthotropic, fracture, brittleness and the like;
the mesh division module 300 is used for dividing finite element meshes according to the input requirements, ensuring the mesh quality and ensuring the subsequent strength analysis and the optimization design to be carried out smoothly;
specifically, the grid division module has the capability of automatically dividing the structured grid, can perform block modeling on the main cover body, the connecting rings, the glue layer and the pins, and is controllable in grid density; the main cover body can be grouped according to layers, and the material properties can be respectively defined according to the layers;
the load loading module 400 is used for selecting different areas according to actual working conditions and applying a temperature field, static loads and dynamic loads;
specifically, the load loading module completes three-dimensional aerodynamic force, inertial overload and three-dimensional temperature load loading according to a specified data format, has the functions of static loading and transient loading, and can solve structural resultant force for any integral point;
the boundary condition setting module 500 is configured to apply a corresponding boundary condition according to a specific application scenario, so as to ensure smooth calculation;
specifically, the boundary condition setting module in the invention can automatically realize the loading of the boundary condition of the antenna housing structure, wherein the boundary condition includes but is not limited to displacement constraint, contact pair setting and the like;
the solving module 600 is configured to submit abaqus operations;
specifically, the solving module in the invention can automatically configure the default solver, and a user can check the settings of the solver and can manually configure the low-level settings;
the optimization module 700 is configured to invoke isight optimization software to optimize the design solution according to the requirement of the optimization design;
specifically, the optimization module can optimize parameters such as the number, distribution and diameter of pins, the thickness of the radome, parameters of an inner profile curve and the like, support common optimization algorithms including a single-target/multi-target function optimization function, and customize optimization variables and a target function;
the post-processing module 800 is configured to retrieve a calculation result and analyze stress and deformation of a key area;
specifically, the post-processing module in the invention has visualization processing capability, and comprises: surface, slice, contour, cross-section, arrow, line drawing, and other drawing types; the data visualization is not limited to built-in physical quantities, but can be extended to complex physical quantities by inputting mathematical expressions of unknown field variables.
The eight modules all realize the corresponding functional requirements of the modules through independent software plug-ins.
The method utilizes Python language to carry out ABAQUS secondary development and GUI interface design to generate plug-in units of each module, and then integrates the plug-in units together to form a simulation optimization platform capable of realizing the rapid design iteration function of the structural strength of the radome.
Please refer to fig. 2, which is a general idea diagram of the development of the ABAQUS plug-in the present invention, and the steps of the development idea are roughly:
firstly, familiar with the manual software operation flow of a development project object, and recording Python commands corresponding to each step;
secondly, the operations of parameter input, object frame selection and the like are expressed through a programming language;
thirdly, accurately knowing the function, parameter meaning and realization effect of each command by combining the help document of the ABAQUS;
fourthly, finally combining with GUI (input interface) design, and associating the user interface with the kernel program through keywords;
fifthly, the plug-in is placed under a corresponding plug-in folder of the ABAQUS software, and the plug-in can be called when the system is started.
Therefore, the method has the advantages that the ABAQUS secondary development is carried out through the general finite element analysis software, the Python programming language is used for compiling plug-in codes of all modules, corresponding plug-ins are generated, and then the plug-ins are integrated into a simulation platform capable of realizing the rapid design iteration of the structural strength of the antenna housing, so that the construction target is realized; by means of the platform, the purpose of quickly and accurately designing iteration of the antenna housing structure is achieved, repetitive work is greatly reduced, and efficiency is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An antenna housing parameterization and intensity rapid analysis simulation system is characterized by comprising: a model input module, a material physical property parameter module, a grid division module, a load loading module, a boundary condition setting module, a solving module, an optimization module and a post-processing module, wherein,
the model input module is used for establishing a model according to the requirements of a user;
the material physical property parameter module is used for defining various material parameters according to different selections of a user on the antenna housing material, and providing default material parameters for debugging of the user;
the grid division module is used for dividing the finite element grid according to the input requirement, ensuring the grid quality and ensuring the subsequent strength analysis and the optimization design to be carried out smoothly;
the load loading module is used for selecting different areas according to actual working conditions and applying a temperature field, static loads and dynamic loads;
the boundary condition setting module is used for applying corresponding boundary conditions according to specific application scenes to ensure smooth calculation;
the solving module is used for submitting abaqus operation;
the optimization module is used for calling the isight optimization software to optimize the design scheme according to the requirement of the optimization design;
the post-processing module is used for calling a calculation result and analyzing stress and deformation of a key area;
the model input module, the material physical property parameter module, the grid division module, the load loading module, the boundary condition setting module, the solving module, the optimization module and the post-processing module all realize the corresponding functional requirements of the modules through independent plug-ins.
2. The radome parameterization and intensity rapid analysis simulation system according to claim 1, wherein the model input module supports the analytical method for model creation, including but not limited to: a spherical multi-cone shape; a ball head, a gate curve section and a multi-cone shape; a bulb, a power curve and a multi-cone shape; a ball head, a transition arc and a multi-cone shape; discrete point coordinates; non-circular cross-sectional profile.
3. The radome parameterization and strength rapid analysis and simulation system according to claim 2, wherein the model input module further supports a three-dimensional model direct import function, and the format is a general commercial three-dimensional model format.
4. The radome parameterization and strength rapid analysis and simulation system according to claim 1, wherein a material property library is arranged in the material property parameter module, and materials include but are not limited to: pure ceramic materials, fiber reinforced ceramic matrix composite materials, fiber reinforced resin matrix composite materials, metal materials and bonding glue.
5. The antenna housing parameterization and strength rapid analysis and simulation system according to claim 1, wherein the mesh division module has the capability of automatically dividing the structured mesh, can perform block modeling on a main housing body, a connecting ring, a glue layer and pins, and is controllable in mesh density; the main shields may be grouped by layer, and the material properties may be defined separately by layer.
6. The antenna housing parameterization and strength rapid analysis simulation system according to claim 1, wherein the load loading module completes three-dimensional aerodynamic force, inertial overload and three-dimensional temperature load loading according to a specified data format, has static loading and transient loading functions, and can solve structural resultant force for any integral point.
7. The radome parameterization and strength rapid analysis and simulation system according to claim 1, wherein the boundary condition setting module is capable of automatically implementing radome structure boundary condition loading, and the boundary conditions include but are not limited to displacement constraint and contact pair setting.
8. The radome parameterization and intensity rapid analysis and simulation system according to claim 1, wherein the solving module is capable of automatically configuring a default solver, and a user can view the solver settings and also manually configure low-level settings.
9. The antenna housing parameterization and strength rapid analysis and simulation system according to claim 1, wherein the optimization module can optimize parameters such as the number, distribution and diameter of pins, can optimize parameters such as the thickness of the antenna housing and the inner profile curve, and supports common optimization algorithms including a single-target/multi-target function optimization function and customized optimization variables and target functions.
10. The radome parameterization and strength rapid analysis and simulation system according to claim 1, wherein the post-processing module has visualization processing capability, and providing drawing types comprises: surface, slice, iso-surface, cross-section, arrow, and line drawing; the data visualization may be extended to complex physical quantities by inputting mathematical expressions of unknown field variables.
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