Question

ANSYS求助 关于加质量单元

/PREP7
ET,1,BEAM188,,,2
MP,EX,1,2.01E11
MP,DENS,1,7850
MP,PRXY,1,0.3
N,1,,,0
N,2,,,1022.0
N,3,,,1497.5
N,4,,,1842.5
N,5,,,1962.2
N,6,,,2257.5
N,7,,,2395.5
N,8,,,3160.0
N,9,,,1580.0
MAT,1
TYPE,1
*DIM,R_SHAFT1,,7
R_SHAFT1(1,1)=165,220,350,293,219.8,293,225
*DO,I,1,7
SECTYPE,I,BEAM,CSOLID
SECDATA,R_SHAFT1(I,1),24
SECNUM,I
E,I,I+1
*ENDDO
/ESHAPE,1
EPLOT

ET,3,COMBIN14,,1
ET,4,COMBIN14,,2
R,6,5E7,3.5E4
R,7,5E7,3.5E4
R,8,5E7,3.5E4
R,9,5E7,3.5E4
N,9,,,1902.35,
N,10,600,,1902.35,
N,11,,,1259.75
N,12,600,,1259.75
TYPE,3
REAL,6
E,9,10
E,9,10
TYPE,4
REAL,8
E,11,12
E,11,12
ET,5,MASS21,,,4
R,5,572
N,13,,,2109.85,
TYPE,1
REAL,1
E,13
我想在轴段的两端和中间加质量单元，可是总报错

The E command cannot store element 12, possibly because one or more
nodes is not defined.

求大神指点
主要看后半部分，建轴和加弹簧都没问题

Answer 1

将下面三行命令流进行修改：
TYPE,1
REAL,1
E,13
修改为：
TYPE,5
REAL,5
E,13
即可运行。
如果还想在其他部位加质量单元，只需在相应位置定义节点，然后运行
E,？
其中?为节点号。
望采纳！