Mesh transfer-based antenna electromechanical coupling method

An electromechanical coupling and grid technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as the influence of antenna structure deformation and electrical performance, and achieve the effect of reducing the design cycle

Inactive Publication Date: 2016-11-16
10TH RES INST OF CETC
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Problems solved by technology

[0005] Aiming at the problem of electromechanical separation in the analysis and design of large microwave antennas, the present invention provides a rapid and accurate antenna electromechanical coupling method based on grid transfer to solve the influence of antenna structure deformation on electrical performance in the prior art research and other issues

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  • Mesh transfer-based antenna electromechanical coupling method

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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] refer to figure 1 . According to the present invention, the analysis process of antenna electromechanical coupling based on grid transfer,

[0027]A. First, use ANSYS Workbench software to analyze the mechanical characteristics of the antenna, obtain the displacement of each node of the antenna structure deformation, and calculate the static deformation of the antenna panel. Use the ANSYS Mechanical APDL module to read the grid file before deformation, and then for each Calculate the deformation of a grid node, and add the deformation of each node of the finite element model to the origina...

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Abstract

The invention discloses a mesh transfer-based antenna electromechanical coupling method, and aims to provide a quick and accurate antenna electromechanical coupling method. The method is implemented by the following technical scheme: a displacement of each node of an antenna structure after deformation is obtained by utilizing ANSYS Workbench software, calculation is performed to obtain static deformation of an antenna panel, a mesh file before deformation is read by adopting an ANSYS Mechanical APDL (ANSYS Parametric Design Language), then a deformation amount of each mesh node is calculated for each mesh node, a deformation amount of each node of a finite element model is added into an original mesh to obtain a mesh of the antenna after deformation, and then the mesh is updated and a mesh file of the antenna after deformation is output by utilizing the ANSYS APDL; a CDB mesh model is read by using an ICEM CFD module, a mesh type is converted into a PAT format, a mesh file in the PAT format is imported into Hypermesh software, and a surface mesh is extracted and output; and finally a surface mesh file is imported into electromagnetic analysis software to perform simulation, and simulated electric performance of the antenna is compared with electric performance of the antenna before deformation to obtain electromechanical coupling performance of the antenna.

Description

technical field [0001] The invention relates to the technical field of multi-physical field coupling analysis of electronic equipment, in particular to an antenna electromechanical coupling method based on grid transfer. Background technique [0002] With the development of my country's deep space exploration projects, large-scale reflector antennas for ultra-long-distance measurement and control and various large-aperture spaceborne deployable reflector antennas have developed rapidly. Different from common small reflector antennas, the large aperture not only increases the directivity of the antenna, but also increases the weight of the structure, which is easily affected by external environmental factors. As the boundary condition of the electromagnetic field, the reflecting surface undergoes slight deformation under the action of various external loads. Such as vibration shock, gravity, wind load, ice and snow load, temperature load, etc., which will lead to the decreas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 郑雪晓
Owner 10TH RES INST OF CETC
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