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牛頓不吃蘋果新蟲 (初入文壇)
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求助,本人做一個(gè)鉆桿與井壁摩擦的模型,遇到一些問題
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模型計(jì)劃用178模型進(jìn)行點(diǎn)接觸模擬扶正器與井壁接觸,施加一個(gè)鉆壓得出各節(jié)點(diǎn)的摩擦切向力。我先算了一個(gè)小例子,可是感覺是錯(cuò)的,有哪位大神幫小弟看一下,私聊有薪金。! 下面是我寫的簡(jiǎn)單的代碼,請(qǐng)大神們看一下 !建模finish/clear/prep7/Units,SI !設(shè)置單位為國(guó)際單位ET,1,pipe59et,2,conta178keyopt,2,10,2keyopt,2,2,3keyopt,2,5,4 R,1,0.127,0.0092,,,1300 ,0 Rmore,,,,0.5 !定義鉆桿切向阻力系數(shù)R,2,0.1,0.0001,2,0,0,0,0,0,0.1TB,WATER,1 TBDATA,3,1300TBDATA,4,2300MP,EX,1,2.1e11 !設(shè)置鉆桿的彈性模量MP,NUXY,1,0.3!設(shè)置鉆桿泊松比MP,DENS,1,4500 !設(shè)置鉆桿密度mp,mu,2,0.2/pnum,node,1n,1,0,0,0n,10,10,0,0n,11,0,-0.00001,0n,20,10,-0.00001,0fill,1,10,,2fill,11,20,,12type,1real,1e,1,2EGEN,9,1,-1 eintf,0.0001,,low/soluD,1,Uy,,,10,UZ,ROTX,ROTY,ROTZ *do,i,11,20d,i,all*enddof,1,fx,1200000!鉆壓antype,staticpstres,onallsel,all,allsolvefinish/post1etable,fn,smisc,1 !接觸法向力etable,gap,nmisc,3 !間隙尺寸etable,fsy,smisc,2 ! 切向力etable,stat,nmisc,1 !etable,kn,nmisc,10 !etable,uty,nmisc,6 !摩擦阻力nslenplotpretab,fn,uty,fsy, 發(fā)自小木蟲Android客戶端 |
專家顧問 (職業(yè)作家)
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專家經(jīng)驗(yàn): +809 |
新蟲 (初入文壇)
送紅花一朵 |
謝謝老師回答,我又建了一個(gè)模型,計(jì)劃用combin40來模擬鉆桿與井壁接觸的摩擦力,可是不收斂,代碼已經(jīng)私聊發(fā)給您嘞,萬分期待您的回答! 發(fā)自小木蟲Android客戶端 |
專家顧問 (職業(yè)作家)
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專家經(jīng)驗(yàn): +809 |
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