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MATLAB and ANSYS-based combined optimization design method

A design method and joint optimization technology, applied in the software field, can solve the problems of complex parametric programming, huge time and manpower consumption, and long optimization time, saving manpower and time, improving scientific research efficiency, and reducing programming time.

Inactive Publication Date: 2017-11-24
JIANGSU UNIV OF TECH
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Problems solved by technology

Cycle N times. After each simulation using ANSYS, manual participation is required to record the analysis results. The number of simulations is huge. When N reaches tens of thousands of times, the operation is cumbersome, time and manpower are huge, and the efficiency and operation accuracy are low.
[0004] The existing optimization method is to use only one software in MATLAB or ANSYS to optimize the structural design independently. The disadvantages of this method are: (1) After ANSYS calculates the results, it is necessary to manually record the calculation results, and then optimize them with MATLAB For structural parameters, it is cumbersome to operate back and forth between the two softwares for many times, which consumes a lot of time and is low in efficiency; (2) every iteration of MATLAB, ANSYS will re-analyze and calculate, and the ANSYS graphic operation (GUI) is relatively complicated, and (3) If only ANSYS is used for structural optimization design, on the one hand, the parametric programming is relatively complicated and the stability is poor; long, less efficient

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  • MATLAB and ANSYS-based combined optimization design method
  • MATLAB and ANSYS-based combined optimization design method
  • MATLAB and ANSYS-based combined optimization design method

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Embodiment Construction

[0029] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as Figure 2-3 As shown, a joint optimization design method based on MATLAB and ANSYS includes the following steps:

[0031] (1) Create an m file in the MATLAB user interface, set the initial parameters of the structure itself and the external parameters associated with the structure, and save it in the MATLAB installation directory path. The specific method is: start MATLAB, create the m file, and define the structure Dimension parameters, unit attribute parameters and external loads of the structure, and store each unit attribute parameter in the matrix;

[0032] (2) Using MATLAB parameter modeling, the model unit is marked with a specific color, and the mechanical properties of the material to be studied are written in the m file, including the elastic modulus, Poisson's ratio, yield strength and shear elasticity of the material...

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Abstract

The invention provides a MATLAB and ANSYS-based combined optimization design method. According to the method, based on running mechanisms of MATLAB and ANSYS, and by utilizing the advantages of MATLAB and ANSYS, MATLAB serves as a main program, structure shape sizes, material parameters, iterative conditions, unit degradation and the like are set in the main program, and a data result of ANSYS analysis is automatically called through the MATLAB main program, so that automation of calculation iteration in optimization design is realized; and the advantages of MATLAB in the aspects of programming, calculation, data processing and graphic processing can be organically fused with the powerful authority of ANSYS in the aspect of finite element analysis, so that the calculation efficiency can be effectively improved, the automation of the calculation iteration in the optimization design is realized, and a new design way is provided for structure optimization design.

Description

technical field [0001] The invention relates to the field of software technology, in particular to a combined optimization design method based on MATLAB and ANSYS. Background technique [0002] With the development of mathematics, mechanics and computers, structural optimization design has gradually developed. Structural optimization design is based on the optimization theory in mathematics, using computer as a means, according to the performance goals pursued by the design, the objective function is established, and the optimal design scheme is found under various given constraints. [0003] Such as figure 1 As shown, the traditional optimization design method is disclosed. Manually start the ANSYS software, set parameters in the ANSYS interface, define material properties, and then model and divide the unit model. After solving, manually record the simulation results. Apply the recorded results to MATLAB programming, perform iterative calculations, and judge whether the ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F2111/04G06F2111/06
Inventor 周金宇邱爽曹清林邱睿刘浏
Owner JIANGSU UNIV OF TECH
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