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ANSYS 常见后处理方式区别

时间:2010-11-14 11:37:40 来源:未知

一、几种结果的区别
后处理命令etable、单元解、节点解和支座反力,通过比较这些结果,借助ansys中的有关帮助和有限元中力的方向一起来解决这个问题。
1.1
弯矩(只列出前4个单元的解)
etable:
STAT    CURRENT-i    CURRENT-j    CURRENT-i    CURRENT-j   CURRENT-i   CURRENT-j
    ELEM    Y           Y             Z           Z           X           X      
       1 -0.92969E+07-0.92969E+07 0.27922E-05 0.27922E-05-0.17409E-07-0.17409E-07
       2 -0.51228E+07-0.51228E+07 0.28020E-05 0.28020E-05-0.80436E-08-0.80436E-08
       3 -0.94865E+06-0.94865E+06 0.28119E-05 0.28119E-05 0.52244E-08 0.52244E-08
       4 0.32255E+07 0.32255E+07 0.28217E-05 0.28217E-05 0.52244E-08 0.52244E-08
2.
单元解:
ELEM=       1 MX         MY         MZ                                     
       1 0.27870E-05 0.24080E-07 0.11384E+08
       3 -0.27973E-05-0.24080E-07-0.72098E+07

ELEM=       2 MX         MY         MZ                                     
       3 0.27969E-05 0.14714E-07 0.72098E+07
       4 -0.28072E-05-0.14714E-07-0.30357E+07

ELEM=       3 MX         MY         MZ                                     
       4 0.28067E-05 0.14462E-08 0.30357E+07
       5 -0.28170E-05-0.14462E-08 0.11384E+07

ELEM=       4 MX         MY         MZ                                     
       5 0.28166E-05 0.14462E-08-0.11384E+07
       2 -0.28269E-05-0.14462E-08 0.53125E+07
3.
节点解

       1 0.31381E-07 0.60183E-07
       2 -0.28269E-05-0.14462E-08 0.53125E+07
       3 -0.45360E-09-0.93657E-08#p#分页标题#e#
       4 -0.45360E-09-0.13268E-07
       5 -0.45360E-09


4.
支座反力
NODE      MX          MY          MZ   
       2 0.28269E-05 0.14462E-08-0.53125E+07
      10 0.20057E-05 0.18228E-07 0.53125E+07

TOTAL VALUES
VALUE   0.48326E-05 0.19674E-07-0.38184E-07
上面的数据分别表示了对同一分析模型采用四种不同的后处理方式获得的结果,其中Case1反映的是通过输出单元表的结果,Case2对应了listelemsolution结果即为单元解的节点解,Case3代表的是listresultsnodalloadCase4就是listreactionsolu(以下情况同)。

附录:
W=-500
A
=400
EX=30E6
IO=20300
MROT=((W*A*A*A)/(EX*IO))*(1/27)!CALCULATEMAXROTTARGETVALUE
BNDM=(W*A*A)*(19/54)!CALCULATEMAXBENDMOMENT
/PREP7
ET,1,BEAM188
ET,2,BEAM188
SECTYPE,1,BEAM,I
SECDATA,16.655,16.655,36.74,1.68,1.68,.945
SECPLOT,
1
C
=1.49535
SECTYPE,2,BEAM,I
SECDATA,C*16.655,C*16.655,C*36.74,C*1.68,C*1.68,C*.945
SECPLOT,2
MP,EX,1,30E6
MP,NUXY,1,0.3
MP,EX,2,30E6
MP,NUXY,2,
0.3
A
=400
COLUMDIV=4
SPANDIV=16
K,1
K,2,,A
K,3,2*A
K,4,2*A,A
L,2,
1
L
,3,
4
L
,4,2
LSEL,,,,1
LATT,,,,,3
LSEL,,,,2
LATT,,,,,1
LSEL,,,,3
LATT,,,,,1
ALLSEL
LESIZE,1,,,COLUMDIV
LESIZE,2,,,COLUMDIV
LESIZE,3,,,SPANDIV
TYPE,1
SECNUM,1
REAL,1
LMESH,1,2
TYPE,2
SECNUM,2
REAL,2
LMESH,3
ALLSEL
DK,1,ALL
DK,3,ALL
LSEL,,,,3
ESLL
SFBEAM,ALL,1,PRESS,-500,-500
ALLSEL
FINISH
/SOLUTION
SOLVE
FINISH