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Finite element numerical simulation analysis method based on space grid

A space grid and numerical simulation technology, applied in CAD numerical modeling, special data processing applications, design optimization/simulation, etc., can solve problems such as inability to continue, calculation interruption, etc., to achieve reduced complexity, accurate boundary conditions, Ease of use

Active Publication Date: 2021-09-03
上海奇蒙信息科技有限公司
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: when the traditional finite element method analyzes the large deformation of the metal, due to the irregular large deformation of the grid, the calculation is often forced to be interrupted and cannot continue

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  • Finite element numerical simulation analysis method based on space grid
  • Finite element numerical simulation analysis method based on space grid
  • Finite element numerical simulation analysis method based on space grid

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Embodiment Construction

[0051] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present invention.

[0052] The present invention proposes a finite element method based on the spatial grid method, such as Figure 1a , Figure 1b and Figure 1c As shown, in the method provided by the present invention, the space for physical field analysis and calculation is divided into grids, which are defined as "spatial grids", and each spatial grid generally has four nodes. The physical field analysis and calculation is to use the spa...

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Abstract

The invention relates to a finite element numerical simulation analysis method based on a space grid, and the method is characterized in that the method comprises the following steps: performing grid segmentation on a space for physical field analysis and calculation to obtain the space grid; discretizing an object to be analyzed into particles; if the object to be analyzed deforms, enabling the particles to change, but enabling the space grids not to change; when next analysis and calculation are carried out on the object to be analyzed after deformation, giving new physical quantity fields to the particles contained in the space grids again, performing finite element analysis and calculation on the new physical quantity fields, obtaining the physical values of all nodes, and then obtaining the physical values of the particles through interpolation calculation according to the physical values of all the nodes. According to physical field analysis and calculation, finite element analysis is carried out by using a space grid; and the calculation of a physical value of the analyzed object is performed: the physical value of the analyzed object is obtained by discretizing each particle and performing interpolation calculation on the nodes of the space grid where the particles are located, and the analyzed object changes according to the obtained physical value.

Description

technical field [0001] The invention relates to a numerical simulation analysis method using finite elements. Background technique [0002] The finite element method is a numerical simulation method that divides the analysis object into finite grids and performs physical field analysis and calculation. Since the 1960s, as an effective method for numerical simulation, the finite element method has been widely used from civil engineering to aviation. At the same time, the finite element method is also applied to the field of metal forming to analyze and calculate the stress and strain of metal in deformation engineering. However, the traditional finite element method has a fatal shortcoming. When analyzing the large deformation of metal, due to the irregular large deformation of the grid, the calculation is often forced to be interrupted and cannot continue. [0003] In order to solve the analysis and calculation interruption caused by the large irregular deformation of the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F111/10
CPCG06F30/23G06F2111/10Y02T90/00
Inventor 杨刚周华
Owner 上海奇蒙信息科技有限公司
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