Cross-platform continuous numerical simulation method
A simulation method and numerical simulation technology, applied in CAD numerical modeling, 3D modeling, image data processing, etc., can solve problems such as difficult conversion, undisclosed data format of numerical simulation results, unreadable data of models and calculation results, etc.
Pending Publication Date: 2022-03-18
TSINGHUA UNIV
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Problems solved by technology
[0003] In the existing technology, discrete models and intermediate simulation results between different platforms are often incompatible and difficult to convert
Moreover, the data format of the numerical simulation results of many simulation software is not open, there is no interface, and the model and calculation result data cannot be read
In this case, the source data of the simulation data cannot be obtained, and cross-platform continuous simulation cannot be performed.
Method used
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Embodiment
[0052] The wheel hub castings were selected in the experiment using the results obtained by the FT-STAR numerical simulation software, and the temperature field at a certain moment during the solidification process of the castings was cut along the z-axis in the positive direction, and the output was animation, and the cutting step was 1 of the actual height of the workpiece. / 100.
[0053] Read the animation, read the file and convert it into a series of images, and perform color restoration on the series of pictures to remove island points and protruding points. The comparison chart is as follows:
[0054] Read the color map (colormap) in the picture, and establish the corresponding relationship between the color value and the numerical simulation result value C[i±b][j±b][k±b]=tc[m], ij k range is 0 -255, m is the number of color grades, b is a constant value of 10.
[0055] Read a series of sliced pictures, convert the RGB color channel value of each pixel of each pictu...
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The invention discloses a cross-platform continuous numerical simulation method, which comprises the following steps of: firstly, outputting a numerical simulation result as an animation file formed by a series of sections along an x or y or z direction by utilizing a post-processing function of a source numerical simulation platform, and then extracting a series of numerical simulation result section cloud picture images from the animation file; then color restoration processing is carried out on the series of cloud images, especially for the situations of image blurring distortion, noisy points and the like caused by processing such as compression; finally, reading a pixel color value and a numerical simulation result value corresponding to a color code in the picture, and establishing a corresponding relationship between the color value and the simulation result value; and according to the corresponding relationship, reversely converting the series simulation result cross-section cloud atlas into a discrete model and a simulation result data file according to the format of the target numerical simulation platform, and taking the discrete model and the simulation result data file as a discrete model and an initial condition of the target platform, thereby realizing integration of the source platform and the target platform.
Description
technical field [0001] The invention relates to the technical field of numerical simulation, in particular to a cross-platform continuous numerical simulation method. Background technique [0002] Numerical simulation is a commonly used method in design, mechanism research and optimization. Each numerical simulation platform has an independent discrete model and simulation result data format, has a unique simulation module, and also has certain functional limitations. Therefore, the integration of multiple simulation platforms is often required in simulation to carry out cross-platform simulation in order to give full play to the advantages and unique functions of different simulation platforms. [0003] In existing technologies, discrete models and intermediate simulation results between different platforms are often incompatible and difficult to convert. Moreover, the data format of the numerical simulation results of many simulation software is not open, there is no int...
Claims
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IPC IPC(8): G06F30/23G06F30/17G06T5/00G06T13/20G06T17/20G06T17/10G06F111/10
CPCG06F30/23G06F30/17G06T13/20G06T17/20G06T17/10G06F2111/10G06T2207/10024G06T5/73G06T5/77G06T5/90G06T5/70
Inventor 康进武韩晓王纪武王建庄
Owner TSINGHUA UNIV