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samooning新蟲 (初入文壇)
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[求助]
各位大神幫忙看下ansys模擬螺栓鋼管接觸問題分析為什么沒法算！ 已有1人參與
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奉上命令流先 ******************************************* fini /clear /filename, full creating contact *SET,fchd,0.005 !輔材厚度 *set,Uhou,0.01 !U型板厚 *set,llll,0.5 !管長(zhǎng) *set,ls,0.02 !螺栓直徑 *set,lsk,0.022 !實(shí)際螺栓孔徑 *SET,cbdj,lsk*2 !插板端距 *SET,cbzxj,lsk*3 !插板中心距 *SET,br,0.102/2 !支3半徑 *SET,xj,0.1 !插板與支管相交 *SET,Uh,0.06 !U型板高 ld=0.081 !板短邊寬 lc=0.11 !板長(zhǎng)邊寬 la=0.1081 !板長(zhǎng) h=0.01 !板高 jj=0.015 !板管間距 /prep7 CYLIND,br-fchd,br,0,llll,-90,90, !建立腹桿插板 wpro,,,90 wpro,,90 wpoffs,,,0.015 csys,4 BLOCK,-xj,0.015+2*cbdj,,br+0.02,-uhou,, BLOCK,-xj,0.015+2*cbdj,br+0.01,br+0.02,-uhou,uh-uhou VOVLAP,ALL WPRO,,,-90 VSBW,ALL WPOF,,,xj VSBW,ALL WPRO,,,90 VSBW,ALL wpof,,,-uhou vsbw,all ALLS WPCSYS,-1,0 wpof,,,-jj VSBW,ALL wpro,,-90 wpof,,,-h/2 nummrg,all numcmp,all k,100, k,101,ld k,102,lc,la k,103,,la k,104,,,h a,100,101,102,103 l,100,104 vdrag,76,,,,,,119 wpof,cbzxj/2,0.015+cbdj-jj,-0.02 CYLIND, ,ls/2,-0.02,0.1,0,360, vsel,s,,,15,17,2 cm,aa,volu alls vsbv,aa,18,,,1 kwpave,49 wpro,,,-90 vsbw,all kwpave,35, vsbw,all kwpave,22, wpro,,-90 vsbw,all save !板材切割 wpcsys,-1,0 vsel,s,loc,y,-0.011,0 vsel,a,,,14 wpof,cbzxj/2,,-0.015-cbdj vsbw,all wpro,,,90 vsbw,all wpro,,,90 wpof,,,br+0.01-cbzxj/2 vsbw,all wpof,,,-2*(br+0.01-cbzxj/2) vsbw,all wpro,,,90 wpof,,,br+0.01-cbzxj/2 vsbw,all wpcsys,-1,0 wpof,cbzxj/2,,-0.015-cbdj vsel,r,loc,x,-0.03,0.03 vsel,r,loc,z,-0.03,0.03 k,1000 kwplan,-1,1000,139,131 vsbw,all kwplan,-1,1000,159,151 vsbw,all alls save !建立螺栓模型 wpcsys,-1,0 wpof,cbzxj/2,,-0.015-cbdj wpro,,-90 wpof,,,-0.025 cyl4,,,ls/2,360,,,0.04 cyl4,,,ls,,,,ls/2 wpoff,0,0,0.03 cyl4,,,ls,,,,ls/2 numcmp,all vsel,s,,,57 vsel,a,,,59,70,11 vovlap,all wpro,,-90 vsbw,all wpro,,,90 vsbw,all cm,bolt,volu vsel,inve !定義組件 wpcsys,-1,0 vsel,s,loc,y,0 cm,board,volu vsel,inve cmse,u,bolt cm,cha,volu alls numcmp,all !劃分單元 et,1,solid185 mp,ex,1,2.06e11 !懸臂梁和柱 mp,prxy,1,0.3 tb,bkin,1 tbdata,1,235e6 mp,ex,2,2.2e5 !螺栓組 mp,prxy,2,0.25 tb,bkin,2 tbdata,1,400e6 !假設(shè)的 mp,ex,3,2.06e11 !端板 mp,prxy,3,0.3 tb,bkin,3 tbdata,1,235e6 r,1 r,2 r,3 save !螺栓劃分單元 cmsel,s,bolt vatt,2,2,1 mshkey,1 esize,0.005 vmesh,all !連接板劃分單元 cmse,s,bolt vsel,inve kwplan,-1,165,159,127 vsel,r,loc,x,-0.03,0.03 vsel,r,loc,y,,0.06 vatt,1,1,1 mshkey,1 esize,0.007 vmesh,all cmsel,s,board vatt,1,1,1 mshkey,1 esize,0.007 vmesh,all !插板劃分單元 cmsel,s,cha vatt,3,3,1 lsel,s,length,,0.4 lesize,all,0.03 wpcsys,-1,0 lsel,s,loc,y,-h lesize,all,0.005 esize,0.007 vsel,r,loc,z,-jj,-1 vmesh,all vsel,s,loc,z,0,1 vmesh,all vsel,s,loc,z,-jj,0 SMRT,6 vsweep,all save !生成接觸和目標(biāo)單元 et,2,conta174 et,3,targe170 dfkn=1.0 dfto=0.01 !插板與連接板 r,4,,,dfkn,dfto cmsel,s,board nslv,s,1 nsel,r,loc,y,-h/2 real,4 type,2 esurf cmsel,s,cha nslv,s,1 nsel,r,loc,y,-h/2 nsel,r,loc,z,-jj,-1 type,3 esurf !螺母與端板之間(標(biāo)準(zhǔn)接觸) r,5,,,dfkn,dfto asel,,,,375,379,4 asel,a,,,383,386,3 nsla,s,1 real,5 type,2 esurf cmse,s,board nslv,s,1 nsel,r,loc,y,h/2 kwplan,-1,189,193,159 nsel,r,loc,y,,2*(br+0.01-cbzxj/2) nsel,r,loc,x,br+0.01-cbzxj/2,-(br+0.01-cbzxj/2) type,3 esurf !螺栓和孔壁 r,6,,,dfkn,dfto wpcsys,-1,0 wpof,cbzxj/2,,-0.015-cbdj cmse,s,bolt nslv,s,1 wpro,,-90 cswpla,11,1,1,1 nsel,s,loc,x,ls/2 nsel,r,loc,z,-0.015,0.005 real,6 type,3 esurf cmse,s,bolt vsel,inve nslv,s,1 nsel,s,loc,x,ls/2 nsel,r,loc,z,-0.015,0.005 type,2 esurf alls !螺母與端板之間(標(biāo)準(zhǔn)接觸) r,7,,,dfkn,dfto asel,s,,,361,365,4 asel,a,,,369,372,3 nsla,s,1 real,7 type,2 esurf alls cmse,s,cha nslv,s,1 aslv,s csys,4 asel,r,loc,z,-0.015 asel,r,loc,x,-0.03,0.03 asel,r,loc,y,-0.03,0.03 nsla,s,1 type,3 esurf !施加約束和荷載 wpcsys,-1,0 csys,4 nsel,s,loc,z,-jj-la D,all, , , , , ,ALL, , , , , asel,s,loc,x,0 da,all,symm nsel,s,loc,z,0.5 F,all,FZ,10 alls !求解 /solu cncheck nlgeom,on outres,all,all time,1 nsubst,50 pred,off solve ****************** 結(jié)構(gòu)總是沒法算，好像是約束不夠，發(fā)生結(jié)構(gòu)整體位移，但是實(shí)在找不出來問題出在那里了，求大神指導(dǎo)指導(dǎo)，謝謝�。。�！ 2JS7YTT]52(G~6F0~B0{S@W.png |
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