Fast three-dimensional visualization method based on preprocessing result of finite-element analysis

Abstract

The invention discloses a three-dimensional visualization method based on the processing result of finite-element analysis, belonging to the technical field of three-dimensional visualization display. The method comprises the following steps: disintegrating generated grid cell cubes, getting rid of internal public data surfaces and generating an external contour surface aggregate; carrying out coplane grouping on the external contour surface aggregate to obtain a coplanar cell data surface aggregate CoMAP; disintegrating all cell data surfaces in each CoMAP into an independent cell data side, getting rid of all internal common sides to obtain a coplane contour line aggregate; carrying out contour line grouping on all coplane contour line aggregates and dividing all sides forming closed contour lines into a group; finally, generating an independent topological surface according to each group of closed contour lines and judging whether the topological surface is a hole or a surface, carrying out Boole summation operation on all non-hole surfaces and Boole subtracting operation on holes to generate a three-dimensional model. The method disclosed by the invention provides an approach through which the finite-element analysis technique and the virtual reality technique can be combined.

Description

technical field [0001] The invention belongs to the technical field of virtual reality and three-dimensional visualization display, and in particular relates to a three-dimensional visualization method based on post-processing results of finite element analysis. Background technique [0002] With the rapid development of computer technology, numerical simulation technology is widely used in industrial design, weapon development, simulation etc. Finite element analysis is one of the methods widely used in numerical simulation technology. Commonly used finite element analysis software includes ANSYS, LS-DYNA, ABAQUS, MARC, etc. [0003] Virtual reality technology has various means of display, supports the rendering and driving of models, and provides a real-time, three-dimensional virtual environment (Virtual Environment), which is highly immersive, interactive and conceived, enabling people to experience rich Computer generated virtual world. [0004] The core advantage of...

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Problems solved by technology

[0006] In order to overcome the shortcomings of numerical simulation software with simple display functions and single means, and to solve the problems of insufficient model versatility, large and complex model data, and low model rendering efficiency when modeling and rendering platforms reuse finite element models, the present invention proposes a method based on A fast 3D visualization method for the post-processing results of

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