工程力学软件方法 ANSYS命令3加载.ppt

SOLVE 求解 负载加完后,可执行该命令完成解题. 命令10 例题： FINISH /CLEAR /FILNAME,EX12 /UNITS,SI /TITLE,BEAM /PREP7 N,1,0,0,0 N,3,0.6,0,0 FILL,1,3 NPLOT NPLOT1 NLIST ET,1, BEAM3 MP,EX,1,207e9 MP,NUXY,1,0.3 R,1,0.001,0.020833,0.05 E,1, 2 E,2,3 EPLOT ELIST FINISH /SOLU ANTYPE,STATIC OUTPR,BASIC,ALL D,1,UX,0,,,,,UY,ROTZ D,3,UY,0 SFBEAM,1,1,PRES,0,300 SFBEAM,2,1,PRES,300,600 F,2,FY,-200 SOLVE FINISH /POST1 PLDISP,2 PRDISP ETABLE,IMOMENT,SMISC,6 ETABLE,JMOMENT,SMISC,12 ETABLE,ISHEAR,SMISC,2 ETABLE,JSHEAR,SMISC,8 PRETAB * * 解题处理器 /SOLU 命令1 负载定义 声明分析类型 ANTYPE,Antype,Status 系统默认为静态分析. Antype =STATIC 0 静态分析 =BUCKLE 1 屈曲分析 =MODAL 2 振动模态分析 = HARMIC 3 调和外力动力系统分析 = TRANS 4 瞬时动力系统分析 命令2 定义集中力 F,NODE,Lab,VALUE,VALUE2,NEND,NINC NODE:节点号码 Lab: 外力的形式 Lab=FX,FY,FZ,MX,XY,XZ (结构力学的力,力矩方向), =HEAT ( 热学的热流量) =AMP,CHRG(电学的电流,电荷) =FLUX VALUE:外力的大小 NODE,NEND,NINC: 选取节点的范围 命令3 /FILNAME,EX111 /UNITS,SI /TITLE,PLANE NODES /PREP7 ET,1, SHELL63 MP,EX,1,207e9 MP,NUXY,1,0.3 R,1,1 N,1,0,0,0 N,5,5,0,0 FILL,1,5 NGEN,6,10,1,5,1,1,2,0 E,1,11,12,2 F,2,FX,1 定义节点自由度约束 D,NODE,Lab,VALUE,VALUE2,NEND,NINC,Lab2,…,Lab6 NODE:节点号码 Lab: 相对节点的每一个节点受自由度约束的形式 Lab=UX,UY,UZ,ROTX,ROTY,ROTZ (结构力学量) =TEMP( 热学量) VALUE:约束值的大小 NODE,NEND,NINC: 选取节点的范围 命令4 /FILNAME,EX111 /UNITS,SI /TITLE,PLANE NODES /PREP7 ET,1, SHELL63 MP,EX,1,207e9 MP,NUXY,1,0.3 R,1,1 N,1,0,0,0 N,5,5,0,0 FILL,1,5 NGEN,6,10,1,5,1,1,2,0 E,1,11,12,2 D,1,ux,,0,2,1 定义梁单元分布力 SFBEAM,ELEM,LKEY,Lab,VALI,VALJ,VAL2I,VAL2J ELEM:单元号码 LKEY:建立单元后,梁单元的4个面.该参数是面号 Lab=PRES(表面分布压力 ) VALI,VALJ:在I点及J点分布力的值 命令5 /FILNAME,EX111 /UNITS,SI /TITLE,BEAM NODES /PREP7 ET,1,BEAM3 MP,EX,1,207e9 R,1,1e-4,2.083E-10,0.005 N,1,0,0,0 N,5,5,0,0 FILL,1,5 NGEN,6,10,1,5,1,1,2,0 E,1,2 EGEN,4,1,1,1,1 SFBEAM,4,1,PRES,-1 定义分布力 SFE,ELEM,LKEY,Lab,KVAL,VAL1,VAL2,VAL3,VAL4 ELEM:单元号码