MATLAB 如何调用 LS DYNA 并读取计算结果

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1 个回答

刘雯雯

可以使用 svenholcombe 开发的 MATLAB-LSDYNA 插件,该插件目前以开源的形式发布,在 Github 上的地址是:MATLAB-LSDYNA

该插件可以直接读取 ASCII 结果文件,也可以在 MATLAB 中调用 LS-DYNA 求解器,需要注意的是,simulation.m 程序中 LSDYNA 求解器的路径位置是绝对路径的,如下:

properties (Constant, Hidden)
        dynaExe = 'C:\LSDYNA\program\LS-DYNA_smp_s_R610_winx64_ifort101.exe'
end

使用的时候,需要修改绝对路径的位置。也可以将 LSDYNA 安装在 'C:\LSDYNA\' 下,这样就不用修改程序中的路径。

attachments-2020-08-LUlGgnCu5f2bb86f10bf6.png

使用方法

使用插件调用求解器:

S = lsdyna.simulation('C:\FolderToSim\mainFile.k')
S.run

读取 ASCII 计算结果:

out = lsdyna.read.asciiFiles(folder)
 
out = 
    asciiFiles with properties:
  
      folder: 'C:\Folder\Holding\Simulation'
      rbdout: [1x1 lsdyna.read.rbdout]
      nodfor: [1x1 lsdyna.read.nodfor]
      bndout: [1x1 lsdyna.read.bndout]
      nodout: [1x1 lsdyna.read.nodout]
       elout: [1x1 lsdyna.read.elout]

顺序计算文件夹下的算例:

baseFolder = 'C:\FolderToSims';
   for i = 1:10
      simFolder = fullfile(baseFolder,sprintf('sim%d',i));
      S(i) = lsdyna.simulation(fullfile(simFolder,'mainFile.k'));
   end
S.run % Each simulation will be run, one after the other

多线程并行计算,同时计算 4 个算例:

baseFolder = 'C:\FolderToSims';
   for i = 1:10
      simFolder = fullfile(baseFolder,sprintf('sim%d',i));
      S(i) = lsdyna.simulation(fullfile(simFolder,'mainFile.k'));
      S(i).cmdBlocking = false;
   end
   % Run simulations in parallel using 4 threads. The first 4
   % simulations will start in a new command window, and when each is
   % complete, it will fire the next simulation to run in the available
   % thread.
   S.run('threads',4)

读取 LS-DYNA 的 K 文件

kFileStr = 'GHBMC_M50-O_v4-5_20160901.k';
[PART, NODE, ELEMENT_SHELL, ELEMENT_SOLID] = lsdyna.read.kfile(kFileStr);
figure, plot3(NODE.x,NODE.y,NODE.z,'.'), axis image, view(3)

参考文章:https://stuch.cn/article/396

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