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1. 使用DRead命令读取上述dxf文件(如下图所示)。
1. Use DRead command read the above-mentioned dxf file(shown in the following figure).
2. 选择代表隧道的曲线并使用DMesh命令(命令参数如下图所示)。
2. Select the curves representing the tunnel and use the DMesh command (the command parameters are shown in the following figure).
3. 选择隧道的网格及曲线并使用DExtrude命令建立隧道的网格。
3. Select the mesh of the tunnel and the curve and use the DExtrude command to build the mesh of the tunnel.
4. 使用Plane命令画一个足够大的平面。
4. Use the Plane command create a large enough plane.
5. 选择表面的网格及平面,再使用DProject命令来创建土体的网格。
5. Select the mesh of the surface and the plane, then use the DProject command to create the body of the soil.
6. 使用DMerge命令对网格进行融合。
6. Use the DMerge command to merge the meshes.
7. 使用DSeparate命令分割网格,再使用DColorize命令着色。
7. Use the DSeparate command to separate the mesh, then use the DColorize command to dye.
8. 删除无用的曲线、曲面及网格。
8. Delete the unused curves, surfaces and meshes.
9. 对隧道网格的用户属性文本添加键“Size”并设置其值为1.0。
9. Add Key "Size" with value equals 1.0 to the tunnel mesh's Attribute User Text.
10. 再次使用DRemesh命令来进行网格重划分(命令参数如下图所示)。
10. Use the DRemesh command to remesh the meshes (the command parameters are shown in the following figure).
12. 设置网格分组及类型(到此处的网格模型为DExample2.3dm)。
12. Set the groups and types of the meshes (the corresponding mesh model is DExample2.3dm).
17. 使用Build命令建立有限元模型(这是相关模型文件:DExample2.inp,DExample2.mac,DExample2.fpn及DExample2.f3grid)。
17. Use the DBuild command to build the finite element model (here is the corresponding model files: DExample2.inp, DExample2.mac, DExample2.fpn and DExample2.f3grid).