Complex three-dimensional geologic body reverse modeling method suitable for finite element numerical simulation
A numerical simulation and reverse modeling technology, applied in 3D modeling, image data processing, electrical digital data processing, etc., can solve problems such as inability to meet the accuracy requirements of the solution, inability to obtain a complete and closed geological body model, etc.
Pending Publication Date: 2022-05-10
WUHAN UNIV
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[0004] The invention provides a complex three-dimensional geological body reverse modeling method suitable for finite element numerical simulation to solve the technical problem that the prior art modeling method cannot obtain a complete and closed geological body model and cannot adapt to different solution accuracy requirements
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[0028] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0029] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0030] Such as figure 1 As shown, a complex three-dimensional geological body reverse modeling method suitable for finite element numerical simulation of the present invention includes:
[0031] Step 1: Import 3D point cloud data;
[0032] Such as figure 2 As shown, the 3D point cloud data is depth data.
[0033] Step 2: Use Geomagic software to process the point cloud data;
[0034] Processing includes:
[0035] Preprocess point cloud ...
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The invention discloses a complex three-dimensional geologic body reverse modeling method suitable for finite element numerical simulation. The method comprises the following steps: importing three-dimensional point cloud data; processing the point cloud data by using Geomagic software; whether the curved surface is closed or not is judged, if the geologic body is pinched out, the geologic body is directly converted into a three-dimensional geometric model by using Geomagic Freeform software, otherwise, the geologic body is subjected to curved surface interpolation continuation by using Gempy software to enable the curved surface to be closed, and then the curved surface is converted into the three-dimensional geometric model by using the Geomagic Freeform software; format conversion: converting the data types of stl, igs and iges of the three-dimensional geometric model file into an stp format through software STL2STP; and importing the three-dimensional geometric model into finite element analysis software for finite element analysis, and importing the three-dimensional geometric model subjected to format conversion into the finite element software for finite element analysis. According to the complex three-dimensional geologic body reverse modeling method suitable for finite element numerical simulation, a closed geologic body model can be established, and the geologic body model can adapt to different solving precision requirements.
Description
technical field [0001] The invention relates to a complex three-dimensional geological body reverse modeling method suitable for finite element numerical simulation Background technique [0002] A 3D model is a polygonal representation of an object, usually displayed on a computer or other video device. The displayed objects can be entities in the real world or fictional objects. The 3D models are often generated by specialized software such as 3D modeling tools. Existing 3D modeling software can create more complex geological geometric models, similar Software: Petrel, AutoCAD, SolidWorks, Pro / E, etc. However, these software either do not have a finite element solver (such as AutoCAD), or can only perform basic linear elastic numerical simulation calculations (such as SolidWorks), which cannot meet complex finite element simulation calculation tasks. Mature CAE software capable of performing complex nonlinear numerical simulation calculations, such as Abaqus, Ansys, Comso...
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Login to View More IPC IPC(8): G06F30/13G06F30/23G06T17/05G06T17/20G06F119/02
CPCG06F30/13G06F30/23G06T17/05G06T17/20G06F2119/02
Inventor 王明文罗纲陈朝伟房超赵庆蒋宏伟项德贵
Owner WUHAN UNIV