北京科技大学有限元总结

*END

2. 阅读以下命令流文件，完善对每条命令的注释，并简要说明该命令流文件所完成的分析功能。

! APDL 命令 注释 /COM,

/COM,Preferences for GUI filtering have been set to display:

/COM, Structural /units,si /PREP7

ET,1,PLANE42 定义单元类型为PLANE42 R,1,0.001, 定义实常数，厚度为0.001 MP,EX,1,2.1e11

MP,PRXY,1,0.3 定义泊松比 CYL4, , ,0.1

RECTNG,-0.005,0.005,-0.005,0.005, ASBA, 1, 2 FLST,5,4,4,ORDE,2 FITEM,5,5 FITEM,5,-8 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y

LESIZE,_Y1, , ,5, , , , ,1 FLST,5,4,4,ORDE,2 FITEM,5,1 FITEM,5,-4 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y

LESIZE,_Y1, , ,25, , , , ,1 AMESH,3 划分网格 FINISH /SOL

ANTYPE,0 设置分析类型为静态分析 NSUBST,1,0,0 设定求解子步为1