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A Finite Element Numerical Simulation and Analysis Method Based on Spatial Grid

A space grid and numerical simulation technology, applied in CAD numerical modeling, special data processing applications, design optimization/simulation, etc. Easy-to-use effects

Active Publication Date: 2022-07-05
上海奇蒙信息科技有限公司
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  • Description
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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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  • A Finite Element Numerical Simulation and Analysis Method Based on Spatial Grid

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[0051] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of 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 space 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, such grids are defined as "spatial grids", and each spatial grid generally has four nodes. The physical field analysis and calculation is to use the spat...

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Abstract

The invention relates to a finite element numerical simulation analysis method based on spatial grid, which is characterized in that it comprises the following steps: dividing the space calculated by physical field analysis into grids to obtain spatial grids; discretizing the objects to be analyzed Particles; if the object to be analyzed is deformed, the particles will change, but the space grid will not change; when the object to be analyzed after the deformation is subjected to the next analysis and calculation, the particles contained in the space grid will be re-assigned new values. physical quantity field, and then perform finite element analysis and calculation on the new physical quantity field to obtain the physical value of each node, and then calculate and obtain the physical value of the particle according to the physical value of each node. The physical field analysis and calculation of the present invention uses spatial grids to perform finite element analysis; the calculation of the physical value of the analyzed object is obtained by discretizing each particle by interpolating the nodes of the spatial grid where the particle is located, and the analyzed object is calculated according to the Get the physical value to change.

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 of numerical simulation, the finite element method has been widely used from civil engineering to aviation flight. At the same time, the finite element method is also used in 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 disadvantage. When analyzing the large deformation of metal, the calculation is often interrupted due to the irregular large deformation of the mesh and cannot be carried out. [0003] In order to solve the interruption of analysis and calculation caused by the irregular large deformation of the g...

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Application Information

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Patent Type & Authority Patents(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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