Multi-scale component model finite element mesh generation method and device and storage medium

Abstract

The invention discloses a multi-scale component model finite element mesh generation method and device and a storage medium. The method comprises the steps that a multi-scale component model data file is acquired; establishing a circular traversal list for the multi-scale component model data file; circularly traversing the circular traversing list; acquiring circular traversal data; setting characteristic grid parameters according to the circular traversal data; and performing grid division on the multi-scale component model according to the characteristic grid parameters. According to the method, automatic generation of geometric region grids of different magnitudes can be rapidly carried out on a complex multi-scale component model, the grids of different scales are sequentially and uniformly connected in a transition mode according to the geometric index control function, and compared with a traditional self-adaptive grid drawing method, the number of the overall model grids can be reduced, the design period is greatly shortened, and the design efficiency is improved. The product design efficiency is improved; the method can be suitable for a complex model with different scales, grids between different scales are in uniform transition, it is guaranteed that the grids between the scales cannot be suddenly changed, and the quality of the grids is good.

Description

technical field [0001] The invention belongs to the technical field of finite element grid generation, and in particular relates to a multi-scale component model finite element grid generation method, device and storage medium. Background technique [0002] In professional fields such as aviation, aerospace, vehicles, ships, machinery, etc., when meshing complex multi-scale component models for CAE (Computer Aided Engineering, computer-aided engineering) finite element pre-processing mesh division, if in order to meet the requirements of small-scale direction size characteristics, then It is necessary to use all small grid sizes, which will lead to a huge number of grids generated overall, which will affect the subsequent calculation efficiency; if in order to adapt to the size characteristics of large-scale directions, it is necessary to use large grid sizes, which will lead to narrow and long grids in small-scale directions. unit, which cannot meet the accuracy requirement...

AI Technical Summary

Problems solved by technology

[0003] At present, for a model with complex multi-scale dimensions, the usual finite element pre-processing mesh division is: use existing commercial software or open source software to perform full model mesh division, and finally refine the complex small-scale area, However, this process is cumbersome and error-prone, and the experience requirements for meshing workers are relatively high, and the time and labor costs are expensive

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