1、va-由面建立体lsel-在很多很多线中选择你需要的目标线,数量可以无限多asel-在很多很多面中选择你需要的目标面,数量也可以无限多vsel-在很多很多体中选择你需要的目标体,数量也可以无限多latt-给选中的线按材料编号赋属性(前提是首先已定义好材料)aatt-给选中的面按材料编号赋属性vatt-给选中的体按材料编号赋属性acel-按坐标轴赋体积力,lmesh,amesh,vmesh-对线、面、体进行剖分d-在节点上加约束边界dl-在线上加载约束边界da-在面上加载约束边界 2、以上只是列出了常见的几个命令,但是ansys提供的命令是很多的,我们不可能都记得,计算记得,也不知道其有关参数是
2、如何定义的,那不要紧,我们可以与界面操作结合起来学习。我们先利用界面操作实现,然后在保存路径里面找到文件“file.log”,在该文件里有该操作等价的apdl命令,那以后我们就可以使用了。 3、复合命令,很多命令是复合命令,通过几个命令的组合以实现一定的目标,如FITEM、FLST等。这里不予以详述,大家可在学习中慢慢体会。 4、ansys提供的apdl语言可像fortain、c语言一样,可以编程,有条件语句、逻辑语句、文件读写等,但是这些语句语法有个特点,就是在相应的语句前要加“*”,以示其与以上apdl命令的区别。 以上只是一点小小的总结,希望对大家有帮助。K, NPT, X, Y, ZD
3、efines a keypoint. Npt: Reference number for keypoint. If zero, the lowest available number is assigned X,y,z: Keypoint location in the active coordinate system (may be R, , Z or R, , ). If X = P, graphical picking is enabled and all other fields (including NPT) are ignored (valid only in the GUI).
4、A, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18Defines an area by connecting keypoints. P1, P2, P3, . . . , P18 List of keypoints defining the area (18 maximum if using keyboard entry). At least 3 keypoints must be entered. If P1 = P, graphical picking is enabled a
5、nd all remaining arguments are ignored (valid only in the GUI). L, P1, P2, NDIV, SPACE, XV1, YV1, ZV1, XV2, YV2, ZV2Defines a line between two keypoints. NDIV :Number of element divisions within this line. Normally this field is not used; specifying divisions with LESIZE, etc. is recommended. SPACE
6、:Spacing ratio. Normally this field is not used, as specifying spacing ratios with the LESIZE command is recommended. If positive, SPACE is the nominal ratio of the last division size (at P2) to the first division size (at P1). If the ratio is greater than 1, the division sizes increase from P1 to P
7、2, and if less than 1, they decrease. If SPACE is negative, then |SPACE| is the nominal ratio of the center division size to those at the ends. XV1, YV1, ZV1 :Location (in the active coordinate system) of the head of the slope vector corresponding to the slope at the P1 end of the line. The tail of
8、the vector is at the origin of the coordinate system. XV2, YV2, ZV2 :Location of the head of the corresponding to the slope at the P2 end of the line. AL, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10Generates an area bounded by previously defined lines. N, NODE, X, Y, Z, THXY, THYZ, THZXDefines a node. N
9、ODE :Node number to be assigned. A previously defined node of the same number will be redefined. Defaults to the maximum node number used +1. FILL, NODE1, NODE2, NFILL, NSTRT, NINC, ITIME, INC, SPACEGenerates a line of nodes between two existing nodes. ITIME, INC :Do fill-in operation a total of ITI
10、MEs, incrementing NODE1, NODE2 and NSTRT by INC each time after the first. ITIME and INC both default to 1. NGEN, IT IME, INC, NODE1, NODE2, NINC, DX, DY, DZ, SPACE (类似:Agen)Generates additional nodes from a pattern of nodes. Do this generation operation a total of ITIME times(包含现有的自身), incrementing
11、 all nodes in the given pattern by INC each time after the first. ITIME must be 1 for generation to occur. NODE1, NODE2, NINC :Generate nodes from the pattern of nodes beginning with NODE1 to NODE2 (defaults to NODE1) in steps of NINC (defaults to 1). If NODE1 = ALL, NODE2 and NINC are ignored and t
12、he pattern is all selected nodes NSEL. If NODE1 = 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 NODE1 (NODE2 and NINC are ignored). DX, DY, DZ :Node location increments in the active coordinate syste
13、m (DR, D, DZ for cylindrical, DR, D, D for spherical or toroidal).E, I, J, K, L, M, N, O, PDefines an element by node connectivity. I :Number of node assigned to first nodal position (node I). If I = P, graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI)
14、. J, K, L, M, N, O, P :Number assigned to second (node J) through eighth (node P) nodal position, if any. EGEN, ITIME, NINC, IEL1, IEL2, IEINC, MINC, TINC, RINC, CINC, SINC, DX, DY, DZGenerates elements from an existing pattern. ITIME, NINC :Do this generation operation a total of ITIMEs, incrementi
15、ng all nodes in the given pattern by NINC each time after the first. ITIME must be 1 if generation is to occur. NINC may be positive, zero, or negative. If DX, DY, and/or DZ is specified, NINC should be set so any existing nodes (as on NGEN) are not overwritten. IEL1, IEL2, IEINC :Generate elements
16、from selected pattern beginning with IEL1 to IEL2 (defaults to IEL1) in steps of IEINC (defaults to 1). If IEL1 is negative, IEL2 and IEINC are ignored and the last |IEL1| elements (in sequence backward from the maximum element number) are used as the pattern to be repeated. If IEL1 = ALL, IEL2 and
17、IEINC are ignored and use all selected elements ESEL as pattern to be repeated. If P1 = 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 IEL1 (IEL2 and INC are ignored). MINC :Increment material number
18、of all elements in the given pattern by MINC each time after the first. TINC :Increment type number by TINC. RINC :Increment real constant table number by RINC. CINC :Increment element coordinate system number by CINC. SINC :Increment section ID number by SINC. DX, DY, DZ :Define nodes that do not a
19、lready exist but are needed by generated elements (as though the NGEN,ITIME,INC,NODE1,DX,DY,DZ were issued before EGEN). Zero is a valid value. If blank, DX, DY, and DZ are ignored.Note: A pattern may consist of any number of previously defined elements. The MAT, TYPE, REAL, ESYS, and SECNUM numbers
20、 of the new elements are based upon the elements in the pattern and not upon the current specification settings. EDELE, IEL1, IEL2, INCDeletes selected elements from the model.IEL1, IEL2, INC :Delete elements from IEL1 to IEL2 (defaults to IEL1) in steps of INC (defaults to 1). If IEL1 = ALL, IEL2 a
21、nd INC are ignored and all selected elements ESEL are deleted. If IEL1 = 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 IEL1 (IEL2 and INC are ignored). /ESHAPE, SCALE, KEY (显示由实常数或截面定义所确定的线或面 (壳体) 单元
22、)Displays elements with shapes determined from the real constants or section definition. SCALE Scaling factor: 0 Use simple display of line and area elements. This value is the default. 1 Use real constants or section definition to form a solid shape display of the applicable elements. FAC Multiply
23、certain real constants, such as thickness, by FAC (where FAC 0.01) and use them to form a solid shape display of elements. KEY Current shell thickness key:Use current thickness in the displaced solid shape display of shell elements (valid for SHELL181, SHELL208, SHELL209, and SHELL281). This value i
24、s the default. Use initial thickness in the displaced solid shape display of shell elements. ET, ITYPE, Ename, KOP1, KOP2, KOP3, KOP4, KOP5, KOP6, INOPRDefines a local element type from the element library. ITYPE :Arbitrary local element type number. Defaults to 1 + current maximum. Ename:Element na
25、me (or number) as given in the element library in Chapter 4 of the Element Reference. The name consists of a category prefix and a unique number, such as BEAM3. The category prefix of the name (BEAM for the example) may be omitted but is displayed upon output for clarity. If Ename = 0, the element i
26、s defined as a null element. KOP1,. . . , KOP6 :KEYOPT values (1 through 6) for this element, as described in the Element Reference. INOPR :If 1, suppress all element solution printout for this element type. R, NSET, R1, R2, R3, R4, R5, R6Defines the element real constants. NSET :Set identification
27、number (arbitrary). If same as a previous set number, set is redefined. Set number relates to that defined with the element REAL. Note that the GUI automatically sets this value. R1, R2, R3, . . . , R6: Real constant values (interpreted as area, moment of inertia, thickness, etc., as required for th
28、e particular element type using this set), or table names for tabular input of boundary conditions. Use RMORE command if more than six real constants per set are to be input. MP, Lab, MAT, C0, C1, C2, C3, C4Defines a linear material property as a constant or a function of temperature. Lab :Valid mat
29、erial property label. Applicable labels are listed under Material Properties in the input table for each element type in the Element Reference. See Linear Material Properties of the Element Reference for more complete property label definitions:EX Elastic moduli (also EY, EZ). ALPX Secant coefficien
30、ts of thermal expansion (also ALPY, ALPZ). CTEX Instantaneous coefficients of thermal expansion (also CTEY, CTEZ). THSX Thermal strain (also THSY, THSZ). REFT Reference temperature. Must be defined as a constant; C1 through C4 are ignored. PRXY Major Poissons ratios (also PRYZ, PRXZ). NUXY Minor Poissons ratios (also NUYZ, NUXZ). GXY Shear moduli (also GYZ, GXZ). DAMP K matrix multiplier for damping. If used in an explicit dynamic analysis
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