1、在工作平面的原点建立局部圆柱系(gui: workPlan;local coordinate system;creat local CS;At WP Origin)。 <BR>2、再把活动坐标改为CSYS,1 , <BR>3、选中所有要加载荷的接点(可根据位置选择), <BR>4、后改变节点的坐标系(上面第4步) <BR>5、显示节点坐标系(GUI: plotctrs;Simbols 中激活CS Local coordinate System对 <BR> 应的选项off;on 和 NDIR Nodal coordinate System选项 off;on ) <BR>6、显示节点(GUI: plot;node) <BR>7、加载,此时节点的的XYZ分别对应R,THETA,Z <BR><BR>一个例子: <BR> <BR>/PREP7 <BR>CYL4,0,0,1, ,4, ,2 <BR>ET,1,SOLID95 <BR>ESIZE,.5,0, <BR>MSHAPE,1,3D <BR>MSHKEY,0 <BR>CM,_Y,VOLU <BR>VSEL, , , , 1 <BR>CM,_Y1,VOLU <BR>CHKMSH,'VOLU' <BR>CMSEL,S,_Y <BR>VMESH,_Y1 <BR>CMDELE,_Y <BR>CMDELE,_Y1 <BR>CMDELE,_Y2 <BR>CSWPLA,11,1,1,1, !创建圆柱局部坐标 <BR>CSYS,1 ! <BR>NSEL,S,LOC,X,4,4 <BR>FLST,2,968,1,ORDE,6 <BR>FITEM,2,1 <BR>FITEM,2,-104 <BR>FITEM,2,1053 <BR>FITEM,2,-1156 <BR>FITEM,2,2105 <BR>FITEM,2,-2864 <BR>NROTAT,P51X <BR>FINISH <BR>/SOLU <BR>FLST,2,968,1,ORDE,6 <BR>FITEM,2,1 <BR>FITEM,2,-104 <BR>FITEM,2,1053 <BR>FITEM,2,-1156 <BR>FITEM,2,2105 <BR>FITEM,2,-2864 <BR>/GO <BR>D,P51X, ,-.5, , , ,UX, , , , , <BR>ALLSEL,ALL |