hekie做弹簧划分网格做弹簧划分网格如题 bigbird 在台湾论坛上的题目，下图是我做的，感觉有意思 做出部分也可以上传，积分鼓励大家思考一下，试着做一下 可以提示一下 先造线，再由面沿线生成体雨人雨人 我在 HELP 中 COPY 的一点有关内容，与该题有关，希望和我一样 没用过该命令的同学，看过后，都能试着做一下我也在试着做 我想这个命令做螺纹时同样适用 VEXT, NA1, NA2, NINC, DX, DY, DZ, RX, RY, RZ — Generates additional volumes by extruding areas. PREP7:Volumes MP ME ST DY PR EM EH FL PP ED NA1, NA2, NINC Set of areas (NA1 to NA2 in steps of NINC) that defines the pattern to be extruded. NA2 defaults to NA1, NINC defaults to 1. If NA1 = ALL, NA2 and NINC are ignored and the pattern is defined by all selected areas. If NA1 = P, graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI). A component name may also be substituted for NA1 (NA2 and NINC are ignored). DX, DY, DZ Increments to be applied to the X, Y, and Z keypoint coordinates in the active coordinate system (DR, Dθ, DZ for cylindrical; DR, Dθ, DΦ for spherical). RX, RY, RZ Scale factors to be applied to the X, Y, and Z keypoint coordinates in the active coordinate system (RR, Rθ, RZ for cylindrical; RR, Rθ, RΦ for spherical). Note that the Rθ and RΦ scale factors are interpreted as angular offsets. For example, if CSYS = 1, RX, RY, RZ input of (1.5,10,3) would scale the specified keypoints 1.5 times in the radial and 3 times in the Z direction, while adding an offset of 10 degrees to the keypoints. Zero, blank, or negative scale factor values are assumed to be 1.0. Zero or blank angular offsets have no effect. Notes Generates additional volumes (and their corresponding keypoints, lines, and areas) by extruding and scaling a pattern of areas in the active coordinate system. If element attributes have been associated with the input area via the AATT command, the opposite area generated by the VEXT operation will also have those attributes (i.e., the element attributes from the input area are copied to the opposite area). Note that only the area opposite the input area will have the same attributes as the input area; the areas adjacent to the input area will not. If the areas are meshed or belong to meshed volumes, a 3-D mesh can be extruded with this command. Note that the NDIV argument on the ESIZE command should be set before extruding the meshed areas. Scaling of the input areas, if specified, is performed first, followed by the extrusion. In a non-Cartesian coordinate system, the VEXT command locates the end face of the volume based on the active coordinate system. However, the extrusion is made along a straight line between the end faces. Note that solid modeling in a toroidal coordinate system is not recommended. Caution: Use of the VEXT command can produce unexpected results when operating in a non-Cartesian coordinate system. For a detailed description of the possible problems that may occur, see Solid Modeling in the ANSYS Modeling and Meshing Guide. If the area that is being extruded (used as the pattern for the resulting volume) with the VROTAT, VEXT, VOFFST, or VDRAG command is meshed (or belongs to a meshed volume), that mesh will be used as a pattern for the mesh of the volume that is created (see Extruding Meshed Areas). (Compare these commands to the VSWEEP command, which is described in Sweeping Volumes.) If you are interested in extruding your mesh, follow these steps: Mesh the area that is to be extruded, dragged, offset, or rotated (using MESH200 elements). Select an appropriate 3-D element type [ET] (match the shape and number of nodes to the MESH200 element). Activate the selection [TYPE]. Specify the desired number of element divisions in the extruded, rotated, or offset direction (NDIV argument on ESIZE command). If using VDRAG, specify the number of element divisions on the drag path line(s) (LESIZE or ESIZE,,NDIV). Issue the VROTAT, VEXT, VOFFST, or VDRAG command. Concatenated areas [ACCAT] or areas that have concatenated lines [LCCAT] cannot be extruded. You can get around the concatenated line limitation by first meshing the area(s), then deleting the concatenated lines, and finally extruding the area(s) into meshed volume(s). If element attributes have been associated with the pattern area via the AATT command, the opposite area generated by the VDRAG, VEXT, VOFFST, or VROTAT operation will also have those attributes (i.e., the element attributes from the pattern area are copied to the opposite area). Note that only the area opposite the pattern area will have the same attributes as the pattern area; the areas adjacent to the pattern area will not. Use the following command to make the generation of meshed volumes from 2-D models easier: Command(s): Use the following command to make the generation of meshed volumes from 2-D models easier: Command(s): EXTOPT GUI: Main Menu Modeling Operate Extrude Elem Ext Opts Main Menu Preprocessor Meshing Mesh Volume Sweep Sweep Opts EXTOPT controls options relating to the generation of volume elements from area elements using the VEXT, VROTAT, VOFFST, VDRAG, and VSWEEP commands. It enables carry-over of mate。