ANSYS点焊构件有限元模拟命令流.doc

以下是本人做的一个点焊有限元分析的例子的命令流 ，注意本人用的是ANSYS，这里面有很多的命令流是废话，本人懒，就不做剪切了，其中重要的地方我都做了解释。将命令流复制粘贴到ANSYS的命令窗口按键盘上的回车键即可运行。这个案例用的是刚性短梁模拟焊点 ，希望对某些同志有一些参考意义。还要啰嗦一句，分析结果没有用实验验证过，正确与否，本人未知。Finish 这三句是必须粘贴进去的/clear/prep7ET,1,SHELL181 这两行是单元类型!* ET,2,BEAM188!* R,1,0.0017, , , , , , 钢板厚度RMORE, , , , , , , !* !* MPTEMP, 这段是材料参数MPTEMP,1,0 MPDATA,EX,1,2.07E11MPDATA,PRXY,1,0.3 TB,BISO,1,1,2, TBTEMP,0TBDATA,300E6,490E6, MPTEMP, MPTEMP,1,0 MPDATA,EX,2,2.0E11 MPDATA,PRXY,2,0.3 TB,BISO,2,1,2, TBTEMP,0TBDATA,400E6,1000E6,SECTYPE, 1, BEAM, CSOLID, , 0 SECOFFSET, CENT SECDATA,0.001,0,0,0,0,0,0,0,0,0 用于模拟焊点的短梁的半径，焊点的大小可在这里定义，这里是1mmRECTNG,0,0.1,0,0.16, 这段是模型的几何建模，本人是先画钢板，后画/DIST,1,1.08222638492,1 线的，这短线代表了焊点/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST FLST,3,1,5,ORDE,1 FITEM,3,1 AGEN,2,P51X, , ,0,0,0.0015, ,0 /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /VIEW,1,-1 /ANG,1 /REP,FAST /VIEW,1,1 /ANG,1 /REP,FAST FLST,3,1,5,ORDE,1 FITEM,3,2 AGEN, ,P51X, , ,0.06,0,0, , ,1 /DIST,1,1.08222638492,1 /REP,FAST /VIEW,1,1 /ANG,1 /REP,FAST /VIEW,1,1 /ANG,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST K,9,0.08,0.08,0, 画关键点K,10,0.08,0.08,0.0015, LSTR, 9, 10 连线AESIZE,ALL,0.005, 这段是划分网格MSHKEY,0FLST,5,2,5,ORDE,2 FITEM,5,1 FITEM,5,-2 CM,_Y,AREA ASEL, , , ,P51X CM,_Y1,AREA CHKMSH,AREA CMSEL,S,_Y !* AMESH,_Y1 !* CMDELE,_Y CMDELE,_Y1 CMDELE,_Y2 !* CM,_Y,LINE LSEL, , , , 9 CM,_Y1,LINE CMSEL,S,_Y !* !* CMSEL,S,_Y1 LATT,2,1,2, , , ,1 CMSEL,S,_Y CMDELE,_Y CMDELE,_Y1 !* FLST,5,1,4,ORDE,1 FITEM,5,9 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,_Y !* LESIZE,_Y1, , ,3, , , , ,1 !* MSHKEY,0LMESH, 9 /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST NUMCMP,NODE 这行是压缩节点/DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST !* !* /COM, CONTACT PAIR CREATION - START 这段是创建接触对，用modelingcreatecontact pair就可以创建了，注意要把里面的算法换成MPC算法，就可以创建一个MPC接触对了CM,_NODECM,NODE CM,_ELEMCM,ELEM CM,_KPCM,KP CM,_LINECM,LINE CM,_AREACM,AREA CM,_VOLUCM,VOLU /GSAV,cwz,gsav,tempMP,MU,1,MAT,1 MP,EMIS,1,7.88860905221e-031R,3 REAL,3 ET,3,170ET,4,175R,3,1.0,0.1,0,RMORE,1.0E20,0.0,1.0, RMORE,0.0,0,1.0,1.0,0.5RMORE,0,1.0,1.0,0.0,1.0RMORE,10.0 KEYOPT,4,4,0KEYOPT,4,5,0KEYOPT,4,7,0KEYOPT,4,8,0KEYOPT,4,9,0KEYOPT,4,10,2 KEYOPT,4,11,0 KEYOPT,4,12,5 KEYOPT,4,2,2KEYOPT,3,5,0! Generate the target surface ASEL,S,1 ASEL,A,2 CM,_TARGET,AREA TYPE,3 NSLA,S,1ESLN,S,0ESLL,U ESEL,U,ENAME,188,189 NSLE,A,CT2 ! CZMESH patch (fsk qt-40109 8/2008) ESURF CMSEL,S,_ELEMCM ! Generate the contact surface LSEL,S,9 CM,_CONTACT,LINETYPE,4 NSLL,S,1ESLN,S,0ESURF *SET,_REALID,3 ALLSEL ESEL,ALLESEL,S,TYPE,3 ESEL,A,TYPE,4 ESEL,R,REAL,3 /PSYMB,ESYS,1 /PNUM,TYPE,1/NUM,1 EPLOT ! Reverse target normalsESEL,NONE ESEL,A,TYPE,3 ESEL,R,REAL,3 ESURF,REVERSE ESEL,ALLESEL,S,TYPE,3 ESEL,A,TYPE,4 ESEL,R,REAL,3 /PSYMB,ESYS,1 /PNUM,TYPE,1/NUM,1 EPLOT ! ! Reverse contact normals ESEL,NONE ESEL,A,TYPE,4 ESEL,R,REAL,3 ESURF,REVERSE ESEL,ALLESEL,S,TYPE,3 ESEL,A,TYPE,4 ESEL,R,REAL,3 /PSYMB,ESYS,1 /PNUM,TYPE,1/NUM,1 EPLOT ! ESEL,ALLESEL,S,TYPE,3 ESEL,A,TYPE,4 ESEL,R,REAL,3 CMSEL,A,_NODECM CMDEL,_NODECM CMSEL,A,_ELEMCM CMDEL,_ELEMCM CMSEL,S,_KPCM CMDEL,_KPCM CMSEL,S,_LINECM CMDEL,_LINECM CMSEL,S,_AREACM CMDEL,_AREACM CMSEL,S,_VOLUCM CMDEL,_VOLUCM /GRES,cwz,gsav CMDEL,_TARGET CMDEL,_CONTACT /COM, CONTACT PAIR CREATION - END /MREP,EPLOT /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,0.924021086472,1/REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,0.924021086472,1/REP,FAST FINISH /SOL!* ANTYPE,0LSEL,S, , , 4 NSLL,S,1FLST,2,33,1,ORDE,4 FITEM,2,1 FITEM,2,54 FITEM,2,74 FITEM,2,-104!* /GO 这段是加载及约束边界D,P51X, ,0, , , ,ALL, , , , , 这行是对 左边界全约束 LSEL,S, , , 6 NSLL,S,1FLST,2,33,1,ORDE,3 FITEM,2,695 FITEM,2,715 FITE