第五例 杆系结构的静力学分析实例——平面桁架 /clear L=0.1 A=1e-4 /PREP7
ET,1,BEAM3 R,1,A
MP,EX,1,2E11 MP,PRXY,1,0.3 N,1 N,2,L N,3,2*L N,4,L,L E,1,2 E,2,3 E,1,4 E,2,4 E,3,4 FINISH /SOLU D,1,UX D,1,UY D,3,UY
F,4,FY,-2000 SOLVE FINISH /POST1
ETABLE,FA,SMISC,1 ETABLE,SA,LS,1 PRETAB,FA,SA FINISH
第六例 干系结构的静力学分析——悬臂梁
一工字悬臂梁，分析其在集中力p作用下自由端的变形，一直梁的材料为10号热轧工字钢，其横截面面积为A=14.345cm2，截面高度H=100mm，惯性矩I=245cm4，梁的长度L=1m，集中力p=10000N,钢的弹性模量E=2e11N/m2，泊松比为0.3
/clear /prep7 Et,1,beam3
R,1,14.345e-4,245e-8,0.1 Mp,ex,1,2e11 Mp,prxy,1,0.3 K,1,0,0,0
K,2,1,0,0 Lstr,1,2
Lesize,1,,,50 Lmesh,1 Finish /solu Dk,1,ux Dk,1,uy Dk,1,rotz
Fk,2,fy,-10000 Solve Finish /post1 Pldisp Finish
第七例 平面问题的求解实例——厚壁圆筒问题
一厚壁圆筒，其内半径r1=50mm，外半径r2=100mm，作用在内孔上的压力p=10MPa，无轴向压力，轴向长度很大可视为无穷，要求计算厚壁圆筒的径向应力和切向应力沿半径方向的分布。 /clear
/filname,example7 /prep7
Et,1,plane183,,,2 Mp,ex,1,2e11 Mp,prxy,1,0.3 Pcirc,0.1,0.05,0,90 Lesize,4,,,6 Lesize,3,,,8 Mshape,0 Mshkey,1 Amesh,1 Finish /solu Dl,4,,uy Dl,2,,ux
Sfl,3,pres,10e6 Solve
Finish /post1 Path,p1,2 Ppath,1,30 Ppath,2,1 pdef,sr,s,x Pdef,st,s,y Plpath,sr,st Finish
第八例 扳手的受力分析 /clear
/filname,example8 /prep7
Et,1,plane42 Et,2,solid45 Mp,ex,1,2e11 Mp,prxy,1,0.3 Rpr4,6,0,0,0.01 K,7,0,0,0 K,8,0,0,0.05 K,9,0,0.1,0.05 Lstr,7,8 Lstr,8,9
Lfillt,7,8,0.015 Lstr,1,4 AsbL,1,10 Lesize,2,,,3 Lesize,3,,,3 Lesize,4,,,3 Lesize,7,0.01 Lesize,8,0.01 Lesize,9,0.01 Mshape,0 Mshkey,1 Amesh,all
Vdrag,all,,,,,,7,9,8 Aclear,2,3,1 Finish /solu Da,2,all Da,3,all
Ksel,s,,,24,29,1 Fk,all,fx,100 Ksel,all Solve Finish /post1
/view,1,1,1,1 Pldisp,2
Plnsol,s,eqv,0,1 Nwpave,159 /type,1,sect /cplane,1 /replot finish
第九章 圆轴扭转分析
设等直圆轴的圆截面直径D=50mm，长度L=120mm，作用在圆轴两端上的转矩Mn=1.5xe3N.m
/clear
/filname,example9 /prep7
Et,1,plane183 Et,2,solid186 Mp,ex,1,2.08e11 Mp,prxy,1,0.3
Rectng,0,0.025,0,0.12 Lesize,1,,,5 Lesize,2,,,8 Mshape,0 Mshkey,1 Amesh,1
Extopt,esize,5 Extopt,aclear,1 Vrotat,1,,,,,,1,4,360 /view,1,1,1,1 Wprot,0,-90 Cswpla,11,1,1,1 Nsel,s,loc,x,0.025 Rpotat,all Finish /solu D,all,ux
Nsel,r,loc,z,0.12 F,all,fy,1500 Allsel,all
Da,2,all Da,6,all Da,10,all Da,14,all Solve Finish /post1 Pldisp,1 Rsys,11
Nsel,s,loc,z,0.045 Nsel,r,loc,y,0 Prnsol,u,y
nsel,s,loc,z,0,0.045 esln,r,1 plesol,s,yz Finish
第十例 模态分析实例——均匀直杆的固有频率分析
一根长度为L的等截面直杆，一端固定，一段自由。已知杆材料的弹性模量为E=2e11，密度为7800kg/m3，杆长L=0.1m，要求计算直杆纵向振动的固有频率。 /CLEAR
/FILNAME,EDAMPLE10 /PREP7
ET,1,SOLID186 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,7800
BLOCK,0,0.01,0,0.01,0,0.01 LESIZE,1,,,3 LESIZE,2,,,3 LESIZE,9,,,15 MSHAPE,0 MSHKEY,1 VMESH,1 FINISH /SOLU
ANTYPE,MODAL MODOPT,LANB,5 MXPAND,5 DA,1,UZ DA,3,UY DA,5,UX SOLVE FINISH
ANSYS应用精华30例
