ansys热分析实例.docx

/PREP7/TITLE,Steady-state thermal analysis of pipe junction/UNITS,BIN ! 英制单位；Use U. S. Customary system of units (inches)! /SHOW, ! Specify graphics driver for interactive runET,1,90 ! Define 20-node, 3-D thermal solid elementMP,DENS,1,.285 ! Density = .285 lbf/in3MPTEMP,70,200,300,400,500 ! Create temperature tableMPDATA,KXX,1,8.35/12,8.90/12,9.35/12,9.80/12,10.23/12 ! 指定与温度相对应的数据材料属性；导热系数；Define conductivity valuesMPDATA,C,1,.113,.117,.119,.122,.125 ! Define specific heat values（比热）MPDATA,HF,2,426/144,405/144,352/144,275/144,221/144 ! Define film coefficient;除144是单位问题，上面的除12也是单元问题 ! Define parameters for model generationRI1=1.3 ! Inside radius of cylindrical tankRO1=1.5 ! Outside radiusZ1=2 ! LengthRI2=.4 ! Inside radius of pipeRO2=.5 ! Outside pipe radiusZ2=2 ! Pipe lengthCYLIND,RI1,RO1,Z1,90 ! 90 degree cylindrical volume for tankWPROTA,0,-90 ! 旋转当前工作的平面；从Y到Z旋转-90度；Rotate working plane to pipe axisCYLIND,RI2,RO2,Z2,-90 ! 角度选择在了第四象限；90 degree cylindrical volume for pipeWPSTYL,DEFA ! 重新安排工作平面的设置；另外WPSTYL,STAT to list the status of the working plane；Return working plane to default settingBOPT,NUMB,OFF ! 关掉布尔操作的数字警告信息；Turn off Boolean numbering warningVOVLAP,1,2 ! 交迭体；Overlap the two cylinders/PNUM,VOLU,1 ! 体编号打开；Turn volume numbers on/VIEW,-3,-1,1/TYPE,4 ! 精确面的显示；Precise hidden display /TITLE,Volumes used in building pipe/tank junctionVPLOTVDELE,3,4,1 ! 修剪一些体与体相关的体的因素都删掉；Trim off excess volumes ! Meshing 网格划分ASEL,LOC,Z,Z1 ! Select area at remote Z edge of tankASEL,A,LOC,Y,0 ! Select area at remote Y edge of tankCM,AREMOTE,AREA ! 为面建立数组；Create area component called AREMOTE/PNUM,AREA,1/PNUM,LINE,1/TITLE,Lines showing the portion being modeledAPLOT/NOERASE ! 预防抹去LPLOT ! Overlay line plot on area plot/ERASEACCAT,ALL ! 连接面和线的准备映射；Concatenate areas and lines at remote tank edgesLCCAT,12,7LCCAT,10,5LESIZE,20,4 ! 4 divisions through pipe thicknessLESIZE,40,6 ! 6 divisions along pipe lengthLESIZE,6,4 ! 4 divisions through tank thicknessALLSEL ! Restore full set of entitiesESIZE,.4 ! Set default element size线的默认划分数MSHAPE,0,3D ! Choose mapped brick meshMSHKEY,1 ! 映射网格SAVE ! Save database before meshingVMESH,ALL ! Generate nodes and elements within volumes/PNUM,DEFA ! 重新安排数字规格 /TITLE,Elements in portion being modeledEPLOTFINISH/COM, * Obtain solution */SOLUANTYPE,STATIC ! Steady-state analysis typeNROPT,AUTO ! 自动选择牛顿-拉普森 Program-chosen Newton-Raphson optionTUNIF,450 ! 给结点统一的温度；Uniform starting temperature at all nodesCSYS,1 ! 1 Cylindrical with Z as the axis of rotationNSEL,S,LOC,X,RI1 ! Nodes on inner tank surfaceSF,ALL,CONV,250/144,450 ! 为结点指定表面载荷；对流；Convection（对流）； load at all nodesCMSEL,AREMOTE ! 选择子集组合；Select AREMOTE componentNSLA,1 ! Nodes belonging to AREMOTED,ALL,TEMP,450 ! 设定边界温度条件 Temperature constraints at those nodesWPROTA,0,-90 ! Rotate working plane to pipe axisCSWPLA,11,1 ! 在工作区声明本地的圆柱体系； Define local cylindrical c.s at working planeNSEL,S,LOC,X,RI2 ! Nodes on inner pipe surfaceSF,ALL,CONV,-2,100 ! 这里的-2表示材料2；Temperature-dep. convection load at those nodesALLSEL/PBC,TEMP,1 ! 边界符号的显示Temperature b.c. symbols on/PSF,CONV,2 ! Convection symbols on 箭头显示/TITLE,Boundary conditionsNPLOTWPSTYL,DEFACSYS,0AUTOTS,ON ! Automatic time steppingNSUBST,50 ! Number of substepsKBC,0 ! Ramped loading (default)OUTPR,NSOL,LAST ! 显示最后一次的结点约束；Optional command for solution printoutSOLVEFINISH/COM, * Review results */POST1/EDGE,1 ! Displays only the edges（刀口, 利刃, 锋, 优势, 边缘, 优势, 尖锐） of an object；Edge display/PLOPTS,INFO,ON ! Legend column on/PLOPTS,LEG1,OFF ! Legend header off 圆柱数列的头部/WINDOW,1,SQUARE ! SQUA, form largest square window within the current graphics area；Redefine window size/TITLE,Temperature contours at pipe/tank junctionPLNSOL,TEMP ! Plot temperature contoursCSYS,11NSEL,LOC,