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Topology optimization method, system and storage medium considering boundary optimization

A topology optimization and boundary optimization technology, applied in design optimization/simulation, special data processing applications, etc., can solve problems such as poor topology optimization effect and unoptimized topology boundary, so as to improve optimization effect, reasonable force, and improve accuracy and the effect of efficiency

Active Publication Date: 2022-04-15
CENT SOUTH UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a topology optimization method, system and storage medium considering boundary optimization, which is used to solve the technical problem that the existing topology optimization method does not optimize the topology boundary when optimizing the internal structure, resulting in poor topology optimization effect

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  • Topology optimization method, system and storage medium considering boundary optimization
  • Topology optimization method, system and storage medium considering boundary optimization
  • Topology optimization method, system and storage medium considering boundary optimization

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Embodiment 1

[0052] Such as Figure 10 As shown, this implementation discloses a topology optimization method considering boundary optimization, including the following steps:

[0053] Determine the initial finite element structure of topology and the type of moving boundary points according to engineering needs;

[0054] According to the type of moving boundary points and the initial finite element structure of the topology, a topology optimization model with moving boundary points and density as variables is constructed;

[0055] Solve the optimal solution of the topology optimization model to obtain the optimal topology of the topology and its corresponding optimal boundary conditions.

[0056] In addition, in this embodiment, a computer system is also disclosed, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the steps of the above method are realized.

[0057] In addition, i...

Embodiment 2

[0060] Embodiment 2 is a preferred embodiment of Embodiment 1, and its difference from Embodiment 2 is that the specific steps of the optimization method are refined:

[0061] In this example, if figure 1 As shown, in this embodiment, a topology optimization method considering boundary optimization is disclosed, including the following steps:

[0062] 1. Determine the initial design of the target according to the needs of the project, and set the moving boundary points according to the design needs; determine the type and form of the moving boundary points; where the moving boundary points include: one-dimensional movement moving on the node connection line of the initial finite element structure Boundary points and two-dimensional mobile boundary points that move within a given two-dimensional area;

[0063] The finite element analysis discretizes the entire cuboid structure into several square units, such as Figure 11 As shown, the node connecting line is the line formed ...

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Abstract

The invention discloses a topology optimization method, system and storage medium considering boundary optimization, by determining the initial finite element structure of the topology and the type of moving boundary points according to engineering needs; according to the type of moving boundary points and the initial finite element structure of the topology to construct A topology optimization model with moving boundary points and density as variables; solving two variables in the topology optimization model at the same time to obtain the optimal topology structure of the topology and its corresponding optimal boundary conditions. Compared with the prior art, the present invention combines the boundary conditions of the structure It is also considered that in the optimization, the obtained results can not only obtain the optimal topology, but also obtain the optimal boundary conditions, which can further improve the optimization effect of the topology.

Description

technical field [0001] The invention relates to the technical field of structural design and optimization, in particular to a topology optimization method, system and storage medium considering boundary optimization. Background technique [0002] In the topology design, the topology optimization in the traditional method is carried out under the condition that the boundary conditions have been fixed, without considering the optimization of the boundary conditions. In fact, the boundary conditions are also the main factors that directly affect the results of topology optimization and the mechanical performance of the optimized structure. [0003] Therefore, the existing topology optimization method does not optimize the topology boundary when optimizing the internal structure, resulting in poor topology optimization effect, which has become a technical problem to be solved urgently by those skilled in the art. Contents of the invention [0004] The invention provides a top...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23
CPCG06F30/23
Inventor 敬海泉罗楷明何旭辉
Owner CENT SOUTH UNIV
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