[转帖]释放自由度实现铰接一例

VibInfo

<DIV >一中间铰接的结构，两端固结，均布载荷，作出弯矩图。命令流如下： <BR>/prep7 <BR>et,1,beam44 <BR>et,2,beam44 <BR>et,3,beam44 <BR>keyopt,1,8,11 <BR>keyopt,2,7,11 <BR>mp,dens,1,2600 <BR>mp,ex,1,3e7 <BR>r,1,3,4,5,1,1,0 <BR>k,1 <BR>k,2,10 <BR>k,3,10,8 <BR>k,4,5,5 <BR>l,1,2 <BR>l,2,3 <BR>ldiv,1,,,10 <BR>ldiv,2,,,8 <BR>lsel,s,,,11 <BR>latt,1,1,1,,4 <BR>lsel,s,,,2 <BR>latt,1,1,2,,4 <BR>lsel,s,,,3,10,1 <BR>lsel,a,,,1 <BR>lsel,a,,,12,18,1 <BR>latt,1,1,3,,4 <BR>allsel <BR>lmesh,all <BR>d,1,all <BR>d,104,all <BR>esel,s,,,10,30,1 <BR>sfbeam,all,1,pres,1e2 <BR>allsel <BR>esel,s,,,35,50,1 <BR>sfbeam,all,1,pres,2e2 <BR>allsel <BR>/solu <BR>solve <BR>/post1 <BR>etable,m,smisc,5 <BR>plls,m,m</DIV>