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Electrochemical actuator structure optimization analysis method and system based on genetic algorithm

A genetic algorithm and analysis method technology, applied in the field of structural optimization analysis of electrochemical actuators, to achieve the effects of improving pretreatment efficiency, optimizing configuration, and saving materials

Pending Publication Date: 2022-05-13
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

To date, achieving large strains remains challenging for electrochemical actuators

Method used

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  • Electrochemical actuator structure optimization analysis method and system based on genetic algorithm
  • Electrochemical actuator structure optimization analysis method and system based on genetic algorithm
  • Electrochemical actuator structure optimization analysis method and system based on genetic algorithm

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Effect test

Embodiment 1

[0055] Such as figure 1 with figure 2 As shown, taking the graphene material as an example, in this embodiment, a method for analyzing the structural optimization of an electrochemical actuator based on a genetic algorithm includes the following steps:

[0056] a. Digital modeling, the process of mapping the genotype and phenotype of the model:

[0057] First, a cube is established based on the origin of the coordinate system, and then each face of the cube is numbered; since the structure is a symmetrical structure, the symmetrical part is constructed on a two-dimensional plane; on the basis of specifying the starting point and end point of the two-dimensional plane structure, use The numbered number represents the path, and after the two-dimensional structure is obtained, it is rotated and mirrored to generate a complete material structure, and the umat subroutine is used to define the constitutive relationship of the material; thus the genotype and phenotype of the model ...

Embodiment 2

[0073] In the present embodiment, in the step a, the finite element pre-processing is carried out, the corresponding automatic pre-processing program code is written, and the constitutive relationship of the material is defined through the umat subroutine, so as to expand the function of the program; in order to simulate the material The phenomenon is actuated in the electrolyte, and the program code is written to realize the application of material surface stress, the interaction between components and the setting of boundary conditions based on the intrinsic stress model.

[0074] In this embodiment, in the step (3), the results obtained from the simulation are analyzed through post-processing, and the point sets in the model are extracted and calculated in the form of a python program file, and finally in the form of a txt file Output, the actuation effect data representing the structure as a result of postprocessing. The simulation results are shown in Table 1.

[0075] T...

Embodiment 3

[0089] This embodiment is basically the same as the above-mentioned embodiment, and the special features are:

[0090] In this embodiment, a genetic algorithm-based electrochemical actuator structure optimization analysis system includes a memory and a processor; wherein the memory is used to store computer programs; the processor is used to execute the above-mentioned embodiment A computer program for a genetic algorithm-based analysis method for structural optimization of electrochemical actuators.

[0091] The electrochemical actuator structure optimization analysis system based on genetic algorithm in this embodiment can realize automatic random modeling using finite element method, simulate various configurations of electrochemical actuators, and realize automatic structure extraction by applying surface stress Finally, combined with the genetic algorithm, the structure of the material is reversely optimized. Due to the parametric modeling and fully automatic extraction o...

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Abstract

The invention discloses an electrochemical actuator structure optimization analysis method and system based on a genetic algorithm, which are suitable for finite element method numerical simulation calculation of an electrochemical actuation reaction process of a material in an electrolyte and achieve the purpose of optimizing the actuation performance of the material in combination with the genetic algorithm. According to the method, on the basis of an intrinsic stress model, a finite element method is combined, automatic random modeling is achieved through a program, the macroscopic strain of the material under different structures is effectively calculated, and under the condition of combining a genetic algorithm, the structure of the material is optimized so as to increase the macroscopic strain of the material, and the actuating performance of the material is effectively improved. According to the method, automatic random modeling can be realized by utilizing a finite element method, various electrochemical actuators with different configurations can be simulated, macroscopic strain of the structure is automatically extracted by applying surface stress, finally, the structure of the material is reversely optimized in combination with a genetic algorithm, required computing resources and computing time are fewer, the efficiency is higher, and the method is suitable for large-scale popularization and application. And the cost is lower.

Description

technical field [0001] The invention relates to an electrochemical actuator structure optimization analysis method and system, which is suitable for the finite element method numerical simulation calculation of the electrochemical actuation reaction process of the material in the electrolyte, and combined with the genetic algorithm to achieve the actuation performance of the material optimization purposes. Background technique [0002] Electrochemical devices that convert electrical energy into mechanical energy have great potential, ranging from soft robots, self-focusing microlenses, to artificial muscles. To date, achieving large strains remains challenging for electrochemical actuators. [0003] The outstanding advantages of electrochemical actuators are low operating voltage and working in electrolyte solutions. It has been found that the size and configuration of the ligament of the electrochemical actuator can affect the macroscopic deformation of the material in th...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F30/27G16C60/00G06N3/12G06F111/10
CPCG06F30/23G06F30/27G16C60/00G06N3/126G06F2111/10
Inventor 孙升张颖王梦欢张统一
Owner SHANGHAI UNIV
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