Rapid sectioning method for high-level radioactive waste repository 3D mesh model

A high-level radioactive waste, three-dimensional mesh technology, applied in the field of three-dimensional modeling, can solve the problems of poor real-time interaction, long sectioning calculation time, etc., to achieve the effect of fast generation

Inactive Publication Date: 2015-12-23
SOUTHWEAT UNIV OF SCI & TECH
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Problems solved by technology

[0004] For the 3D mesh model of the high-level radioactive waste repository based on tetrahedrons, when the size of the tetrahedron mesh reaches one million levels, the existing method cuts the 3D model, which takes a long time to calculate and has poor real-time interactivity. Disadvan...

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  • Rapid sectioning method for high-level radioactive waste repository 3D mesh model
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  • Rapid sectioning method for high-level radioactive waste repository 3D mesh model

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0019] A fast cutting method for a three-dimensional mesh model of a high-level radioactive waste repository of the present invention comprises the following steps:

[0020] 1) Read in the basic data such as nodes, edges, triangular patches, and tetrahedral elements of the 3D mesh model of the high-level radioactive waste repository, and generate all information linked lists of nodes, edges, and triangular patches. The triangular patch linked list is searched, and the overlapping edges and triangular patches are checked, and only one copy of the same element is kept.

[0021] 2) Adaptive partitioning of the grid model space: firstly, the minimum bounding box of the 3D grid model of the repository is established. The number of triangular patches in the divided area will directly affect the search efficiency. This method is based on the size of ...

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Abstract

The invention relates to a rapid sectioning method for a high-level radioactive waste repository 3D mesh model, belonging to the technical field of 3D modeling. The 3D rapid sectioning of any cross section of the high-level radioactive waste repository 3D mesh model based on tetrahedron construction can be supported. According to the method, through establishing the minimum bounding box of the high-level radioactive waste repository 3D mesh model, the mesh model is subjected to adaptive regional division, the rapid search of the divided areas of the repository model is carried out according to section information, the divided areas are determined, in mesh sectioning, the space information and topology information of the sectioned mesh are subjected to synchronous processing, and thus the geometric integrity of the model is maintained. According to the method, any times of sectioning of any cross section of the high-level radioactive waste repository 3D mesh model can be supported, the cross section area generation speed is rapid, when the tetrahedron quantity in the high-level radioactive waste repository 3D mesh model is larger than 1 million and is smaller than 5 million, the cross section generation time is smaller than three seconds, and the repository model can be dynamically refreshed in real time.

Description

technical field [0001] The invention relates to a fast cutting method for a three-dimensional grid model of a high-level radioactive waste disposal warehouse, which can support the rapid three-dimensional cutting of any cut surface of the three-dimensional grid model of a high-level radioactive waste disposal warehouse based on tetrahedron construction, and belongs to the three-dimensional construction method. field of mold technology. Background technique [0002] The underground project for the disposal of high-level radioactive waste is called the high-level radioactive waste repository. Since high-level radioactive waste contains radionuclides with a long half-life, the repository is required to have (1~10)*105a, or even a longer safety period, which is a requirement that no current project can meet. Therefore, the requirements for the repository Precise predictions of evolution require numerical simulations with the help of computers. Since the number of computational...

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Application Information

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IPC IPC(8): G06T17/00
Inventor 陈永辉张春峰韩永国吴亚东毕国堂
Owner SOUTHWEAT UNIV OF SCI & TECH
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