ansys单元生死一例.docVIP

Ansys 单元生死一例  HYPERLINK /blog/ \l m=0t=1c=fks_087065086080086069093084074070085087088068080 \o 默认分类 默认分类 2010-04-07 11:32:02 阅读258 评论0 ??字号：大中小?订阅 finish/clear/title, Convection Example /prep7 ! Enter the preprocessor! define geometryk,1,0,0 ! Define keypointsk,2,0.03,0k,3,0.03,0.03k,4,0,0.03a,1,2,3,4 ! Connect the keypoints to form area! mesh 2D areasET,1,Plane55 ! Element typeMP,Dens,1,920 ! Define densitymp,c,1,2040 ! Define specific heatmp,kxx,1,1.8 ! Define heat transfer coefficientesize,0.0005 ! Mesh sizeamesh,all ! Mesh areafinish/solu ! Enter solution phaseantype,4 ! Transient analysistime,60 ! Time at end of analysisnropt,full ! Newton Raphson - fulllumpm,0 ! Lumped mass offnsubst,20 ! Number of substeps, 20neqit,100 ! Max no. of iterationsautots,off ! Auto time search offlnsrch,on ! Line search onoutres,all,all ! Output data for all substepskbc,1 ! Load applied in steps, not rampedIC,all,temp,268 ! Initial conditions, temp = 268nsel,s,ext ! Node select all exterior nodessf,all,conv,10,368 ! Apply a convection BCnsel,all ! Reselect all nodes/gst,off ! Turn off graphical convergence monitorsolvefinish/post1 ! Enter postprocessorset,last ! Read in last subset of dataetable,melty,temp, ! Create an element tableesel,s,etab,melty,273 ! Select all elements from table above 273finish ANSYS基坑开挖及混凝土回填(单元生死) finish/clear/filname,dig/title,element birth and death-dig !第一步；创建挖掘过程仿真用的有限元模型/prep7et,1,plane42,,,1mp,ex,1,2.675e9 !土mp,nuxy,1,0.3375mp,dens,1,1000 mp,ex,2,2.85e10 !混凝土mp,nuxy,2,0.17mp,dens,2,2548 !创建基坑旋转几何面rectng,0,7.5,0,4rectng,0,7.5,4,4+11/3rectng,0,7.5,4+11/3,4+11*2/3rectng,0,7.5,4+11*2/3,15rectng,4,4.5,0,15aptn,all /pnum,line,1 /pnum,area,1 /number,0 lplot !定义径向各线上单元份数lsel,s,loc,x,2lesize,all,,,4,,,,,1lsel,s,loc,x,4.25 lesize,all,,,2,,,,,1lsel,s,loc,x,6 lesize,all,,,3,,,,,1 !定义高度方向各线上的单元份数lsel,s,loc,x,0lsel,a,loc,x,4 lsel,a,loc,x,4.5 lsel,a,loc,x,7.5lesize,all,,