我用ABAQUS的二次开发三维建模，初学者，有好多问题，只把公式写上了，大神给点意见，谢谢，，，？
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#! /user/bin/python #-*-coding: UTF-8-*- from abaqusConstants import * from caeModules import * from abaqus import * import sys #################################################### #####本脚本用于在abaqus快速建立圆柱巨型网格##### #################################### from abaqus import * from abaqusConstants import * import part import assembly import sketch #输入参数，高度h，长向网格数m，长向长度m1，长向分区m2，跨向网格数n，跨向长度n1，跨向分区n2，斜向分区k #六边形边长为c,d,八边形长度分别为c,d,a,其中a与cd有关，用论文中的公式单独计算 h=1 m=4 m1=12 m2=5 n=3 n1=9 n2=4 k=7 c=2 d=1 a=3 pi=3.1415926535898 #这一步建立参考点，作为part，如果想在abaqus里建空间网格结构必须新建一个part再建空间线， #abaqus只支持绘制平面草图 p = mdb.models['Model-1'].Part(name='Part-1', dimensionality=THREE_D, type=DEFORMABLE_BODY) p.ReferencePoint(point=(0.0, 0.0, 0.0)) p = mdb.models['Model-1'].parts['Part-1'] import math import numpy as np #绘制六角锥上节点,利用循环生成内部和长向上的六角锥，跨向两端为八边形 #i为奇数 for i in range(1,2*n+2): for j in range(1,m+1): xx1(i,j)=c*cos(pi/2-atan(n1/2/m1))+(j-1)*m1 yy1(i,j)=d/2+(i-1)*n1 zz1(i,j)=-h xx2(i,j)=c*cos(pi/2-atan(n1/2/m1))+(j-1)*m1 yy2(i,j)=(i-1)*n1-d/2 zz2(i,j)=-h xx3(i,j)=(j-1)*m1 yy3(i,j)=-(c*sin(pi/2-atan(n1/2/m1))+d/2)+n1*(i-1) zz3(i,j)=-h xx4(i,j)=-c*cos(pi/2-atan(n1/2/m1)+(j-1)*m1 yy4(i,j)=(i-1)*n1-d/2 zz4(i,j)=-h xx5(i,j)=-c*cos(pi/2-atan(n1/2/m1))+(j-1)*m1 yy5(i,j)=d/2+(i-1)*n1 zz5(i,j)=-h xx6(i,j)=(j-1)*m1 yy6(i,j)=m1*c*sin(pi/2-atan(n1/2/m1))/n1+n1*(i-1) zz6(i,j)=-h i=i+2 #i为偶数 for i in range (2,2n+1): for j in range(1,m+1): x11(i,j)=c*cos(pi/2-atan(n1/2/m1))+j*m1-3*m1/2 y11(i,j)=d/2+(i-1)*n1 z11(i,j)=-h x22(i,j)=c*cos(pi/2-atan(n1/2/m1))+j*m1-3*m1/2 y22(i,j)=(i-1)*n1-d/2 z22(i,j)=-h x33(i,j)=-m1/2+(j-1)*m1 y33(i,j)=c*cos(pi/2-atan(n1/2/m1))+d/2+n1*(i-1) z33(i,j)=-h x44(i,j)=-c*cos(pi/2-atan(n1/2/m1))+(j-3/2)*m1 y44(i,j)=(i-1)*n1-d/2 z44(i,j)=-h x55(i,j)=c*cos(pi/2-atan(n1/2/m1))+j*m1-3*m1/2 y55(i,j)=d/2+(i-1)*n1 z55(i,j)=-h x66(i,j)=-m1/2+(j-1)*m1 y66(i,j)=d/2+(i-1)*n1+2*c*cos(pi/2-atan(n1/2/m1))+d/2 z66(i,j)=-h #八角锥的绘制（只存在长向的两端） #左端 i为奇数 for i in range(2,2*n+1): x81(i,1)=-m1+a/2 y81(i,1)=c*sin(pi/2-atan(n1/(2*m))+d/2+2*(i-2)*n1 z81(i,1)=-h x82(i,1)=a/2+c*cos(pi/2-atan(n1/(2*m))-m1 y82(i,1)=d/2+(i-2)*2*n1 z82(i,1)=-h x83(i,1)=a/2+c*cos(pi/2-atan(n1/(2*m))-m1 y83(i,1)=-d/2+(i-2)*2*n1 z83(i,1)=-h x84(i,1)=-m1+a/2 y84(i,1)=-c*sin(pi/2-atan(n1/(2*m))-d/2+2*(i-2)*n1 z84(i,1)=-h x85(i,1)=-m1-a/2 y85(i,1)=-c*sin(pi/2-atan(n1/(2*m))-d/2+2*(i-2)*n1 z85(i,1)=-h x86(i,1)=-m1-*c*cos(pi/2-atan(n1/(2*m))-a/2 y86(i,1)=a/2+c*cos(pi/2-atan(n1/(2*m))-m1 z86(i,1)=-h x87(i,1)=-m1-*c*cos(pi/2-atan(n1/(2*m))-a/2 y87(i,1)=d/2+(i-2)*2*n1 z87(i,1)=-h x88(i,1)=-m1-a/2 y88(i,1)=c*sin(pi/2-atan(n1/(2*m))+d/2+2*(i-2)*n1 z88(i,1)=-h #右端 x81(i,m+1)=-m1+a/2+m1*m y81(i,m+1)=c*sin(pi/2-atan(n1/(2*m))+d/2+2*(i-2)*n1 z81(i,m+1)=-h x82(i,m+1)=a/2+c*cos(pi/2-atan(n1/(2*m))+m1*(m-1) y82(i,m+1)=d/2+(i-2)*2*n1 z82(i,m+1)=-h x83(i,m+1)=a/2+c*cos(pi/2-atan(n1/(2*m))+m1*(m-1) y83(i,m+1)=-d/2+(i-2)*2*n1 z83(i,m+1)=-h x84(i,m+1)=-m1+a/2+m1*m y84(i,m+1)=-c*sin(pi/2-atan(n1/(2*m))-d/2+2*(i-2)*n1 z84(i,m+1)=-h x85(i,m+1)=-a/2+(m-1)*m1 y85(i,m+1)=-c*sin(pi/2-atan(n1/(2*m))-d/2+2*(i-2)*n1 z85(i,m+1)=-h x86(i,m+1)=-a/2+(m-1)*m1-c*cos(pi/2-atan(n1/(2*m)) y86(i,m+1)=a/2+c*cos(pi/2-atan(n1/(2*m))-m1 z86(i,m+1)=-h x87(i,m+1)=-a/2+(m-1)*m1-c*cos(pi/2-atan(n1/(2*m)) y87(i,m+1)=d/2+(i-2)*2*n1 z87(i,m+1)=-h x88(i,m+1)=-a/2+m1*(m-1) y88(i,m+1)=c*sin(pi/2-atan(n1/(2*m))+d/2+2*(i-2)*n1 z88(i,m+1)=-h i=i+2 #连接六角锥，形成巨型网格结构 p = mdb.models['Model-1'].parts['Part-1'] m=mdb.Model(name='Model') p=m.Part(name='Part') p.WirePolyLine(points=(((x1(i,j), y1(i,j), z1(i,j)), (x33(i+1,j+1)), y33(i+1,j+1), z33(i+1,j+1)),) mergeWire=OFF , meshable=ON) p.WirePolyLine(points=(((x1(i,j), y1(i,j), z1(i,j)), (x5(i,j+1), y5(i,j+1), z5(i,j+1)), )mergeWire=OF F, meshable=ON) p.WirePolyLine(points=(((x2(i,j), y2(i,j), z2(i,j)), (x4(i,j+1), y4(i,j+1), z4(i,j+1)),) mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x2(i,j), y2(i,j), z2(i,j)), (x66(i-1,j+1), y66(i-1,j+1), z66(i-1,j+1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x3(i,j), y3(i,j), z3(i,j)), (x55(i-1,j+1), y55(i-1,j+1), z55(i-1,j+1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x3(i,j), y3(i,j), z3(i,j)), (x11(i-1,j), y11(i-1,j), z11(i-1,j)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x4(i,j), y4(i,j), z4(i,j)), (x66(i-1,j), y66(i-1,j), z66(i-1,j)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x11(i,j), y11(i,j), z11(i,j), (x55(i,j+1), y11(i,j+1), z11(i,j+1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x22(i,j), y22(i,j), z22(i,j), (x44(i,j+1), y44(i,j+1), z44(i,j+1)), ), mergeWire=OFF, meshable=ON) #连接六角锥和八八角锥 for i in range(1,2n+2) p.WirePolyLine(points=(((x5(i,j), y5(i,j), z5(i,j), (x82(1,j), y82(1,j), z82(1,j)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x4(i,j), y4(i,j), z4(i,j), (x83(1,j), y83(1,j), z83(1,j)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x1(i,j), y1(i,j), z1(i,j), (x87(i,m+1), y83(i,m+1), z83(i,m+1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x4(i,j), y4(i,j), z4(i,j), (x83(i,m+1), y83(i,m+1), z83(i,m+1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x81(i,1), y81(i,1), z81(i,1), (x84(i+1,1), y84(i,1), z81(i,1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x88(i,1), y88(i,1), z88(i,1), (x85(i+1,1), y85(i,1), z85(i,1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x81(i,m+1), y81(i,m+1), z81(i,m+1), (x84(i+1,m+1), y84(i,m+1), z84(i,m+1)), ), mergeWire=OFF, meshable=ON) p.WirePolyLine(points=(((x88(i,m+1), y88(i,m+1), z88(i,m+1), (x84(i+1,m+1), y84(i+1,m+1), z81(i+1,m+1)), ), mergeWire=OFF, meshable=ON) i=i+2 #建立视图 session.viewports['Viewport: 1'].setValues(displayedObject=p)
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有限元与近场动力学 
