A topology optimization method based on matlab and cfx joint solution platform

Abstract

The present invention proposes a topology optimization method based on Matlab and CFX joint solution platform, which mainly relies on three parts to realize: (1) Matlab transfers CFX solver to automatically perform fluid simulation calculation; (2) establishes a dynamic link library to make the application program It can call functions that do not belong to its executable code, which solves the problem that the Fortran program cannot be directly recognized by CFX, and the source item information can be smoothly transferred to CFX; (3) Matlab calls the CFX post-processing module to convert the calculation results in the specified format and specified The path is exported for Matlab to read and perform subsequent calculations. The invention combines two commonly used software Matlab and CFX, Matlab performs topology optimization algorithm control, CFX performs flow field solution, and establishes an interface to create a joint solution platform, so that the two can call each other and transfer data, each taking two The director of the software can not only solve multi-objective optimization, but also greatly reduce the optimization solution time.

Description

technical field [0001] The invention belongs to the field of shape optimization and topology optimization, and relates to a novel joint solution platform and a novel shape optimization design method for aero-generators. The platform combines Matlab and CFX to perform mutual calling and data transfer to solve complex shape optimization or multi-objective shape optimization. Optimized design. Background technique [0002] Aeronautical generators have the characteristics of small size, high power density and high speed, and the temperature rises significantly during operation, which directly affects the life of the motor, the safety and reliability of operation. The heat dissipation problem caused by the large unit volume loss and small heat dissipation area of ​​aviation generators often becomes a bottleneck restricting the development of motors. In order to reduce the flow resistance, increase the heat dissipation, and optimize the heat dissipation capacity of the motor, it ...

AI Technical Summary

Problems solved by technology

[0010] Special software for topology optimization (such as Freefem++, Optistruc, Tosca, etc.) is slow in calculation speed and time-consuming when dealing with complex optimization problems (such as aviation motors), and it is not widely used software, which is not easy to use, and it is not easy to use commonly used software. data transmission

How to solve the fluid topology optimization problem with commonly used software in the aviation field is the starting point for the present invention to consider

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