ANSYS 螺栓 预应力

新手 在模拟螺栓预应力时出现了问题，下面是命令

!******************************************************************************

!文件说明段

!******************************************************************************

/FILNAME,xvanbiliang,1                           !修改工程名称

/TITLE,beam                                     !修改标题为“beam”

/UNITS,SI                                       !定义单位 

!******************************************************************************

!设置材料属性

!******************************************************************************

/PREP7                                           !进入前处理 

ET,1,SOLID187                                    !定义单元类型

MPTEMP,1,0                                      !创建温度表

MPDATA,EX,1,,2e11                               !定义1号材料弹性模量

MPDATA,PRXY,1,,0.3                              !定义1号材料泊松比

MPDATA,MU,1,,0.2                                !定义材料摩擦系数

MPTEMP,1,0

MPDATA,EX,2,,2.5e11                              !定义2号材料弹性模量

MPDATA,PRXY,2,,0.4                              !定义2号材料泊松比

!******************************************************************************

!建立模型

!******************************************************************************

BLC4,-0.1,0,0.2,1,0.1                              !绘制立柱

WPOFFS,0,0,0.1                                  !移动坐标系Z方向0.1米

BLC5,0,0.8,0.2,0.4,0.1                             !绘制横两侧板

WPOFFS,0,0,0.1                                  !移动坐标系Z方向0.1米

BLC5,0,0.8,0.2,0.1,1                               !绘制横梁

WPOFFS,0,0,-0.2                                  !移动坐标系-Z方向0.2米

CON4,0.06,0.95,0.02,0.02,0.2                        !绘制圆柱孔

CON4,0.06,0.65,0.02,0.02,0.2                        !绘制圆柱孔

VSYMM,X,4,5,1,0,0                               !镜像圆柱孔

VSEL,S,,,4,7,1                                     !拾取圆柱孔

CM,V1,VOLU,                                    !圆柱孔创建元件件名

VSEL,S,,,1,2                                      !拾取立柱和横梁

CM,V2,VOLU                                     !立柱和横梁侧板创建元件名

ALLSEL,ALL                                     !选择所有实体

VSBV,V2,V1                                      !体相减

/REPLOT                                         !重绘窗口

CMDELE,V1                                      !删除组件1

CMDELE,V2                                      !删除组件2

NUMCMP,ALL                                    !压缩编号

CSWPLA,11,0                                     !定义局部直角坐标系

WPCSYS,11                                       !工作平面为直角坐标系

CON4,0.06,0.95,0.02,0.02,0.2                         !绘制螺栓

WPOFFS,0,0,0.2                                    !移动坐标系Z方向0.2米

CON4,0.06,0.95,0.03,0.03,0.05                         !绘制螺栓头

WPOFFS,0,0,-0.2                                    !移动坐标系-Z方向0.2米

CON4,0.06,0.95,0.03,0.03,-0.05                        !绘制螺母

VGEN,2,4,6,1,0,-0.3                                 !复制螺栓

VSYMM,X,4,9,1                                    !镜像螺栓

/trly,volu,1,all                                       !调小体的透明度

NUMCMP,ALL                                     !压缩编号

VGLUE,1,3                                         !体1,3粘结

VGLUE,4,5,6                                       !体4,5,6粘结

VGLUE,7,8,9                                       !体7,8,9粘结

VGLUE,10,11,12 !体10,11,12粘结

VGLUE,13,14,15                                    !体13,14,15粘结

NUMCUP,ALL                                      !压缩单元

!******************************************************************************

!划分网格

!******************************************************************************

VSEL,S,,,3,13,1                                     !拾取螺栓

VSEL,A,,,15

CM,luoshuan,VOLU                                  !创建luoshuan组件

CMSEL,,luoshuan                                    !拾取luoshuan组件

VATT,2,,1                                           !设置螺栓网格单元属性

VSEL,S,,,1,2                                        !设置lizhu 组件

VSEL,A,,,14

CM,lizhu,VOLU

CMSEL,S,lizhu     

VATT,1,,1                                           !设置lizhu属性

VSEL,S,,,4                                          !螺栓柱划分网格

VSEL,A,,,7

VSEL,A,,,10

VSEL,A,,,13

CM,luoshuanzhu,VOLU

CMSEL,,luoshuanzhu

MSHAPE,1,3D                                       !设置3D四面体网格划分

MESHKEY,0                                         !自由网格划分

VMESH,luoshuanzhu                                  !划分网格

VSEL,S,,,5,6                                          !螺栓头和螺母划分网格

VSEL,A,,,8,9

VSEL,A,,,11,12

VSEL,A,,,3

VSEL,A,,,15

CM,luoshuantou,VOLU

CMSEL,,luoshuantou

MSHAPE,1,3D                                       !设置3D四面体网格划分

MESHKEY,0                                         !自由网格划分

VMESH,luoshuantou                                 !划分网格

CMSEL,,lizhu                                       !划分立柱网格

SMRTSIZE,3,0.5                                     !网格划分大小

MSHAPE,1,3D                                      !设置3D四面体网格划分

MESHKEY,0                                        !自由网格划分

VMESH,lizhu                                       !划分网格

ALLSEL,ALL

PSMESH,,BOLT1,,VOLU,4,0,Z,0,,,,PRETS179             定义4号体预紧力

PSMESH,,BOLT2,,V,7,,Z,0.5,,,PRETS179                !定义7号体预紧力

PSMESH,,BOLT3,,V,10,,Z,0.5,,,PRETS179               !定义10号体预紧力

PSMESH,,BOLT4,,V,13,,Z,0.5,,,PRETS179               !定义13号体预紧力

当施加PSMESH命令时，就会出现下面问题

怎么解决呢