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milan6

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[求助] ansys计算步数无法增加，求助！！！已有1人参与

我用ansys显式动力学分析做一个瞬态荷载下声波的传播，模型就是一个简单的三维厚板，无反射边界，输出d3plot来提取波形数据。
现在的问题是利用默认步数的话采样时间间隔太大，比荷载步长还大，提取波形明显不准确，但是增加计算步数设置无效。number of steps那里设置成多大最后的数据都只有700步，尝试关闭自动时间步长也没有效果，百思不得其解，向高手求教！

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1楼 2016-04-24 20:52:35

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milan6

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没有人知道吗

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2楼2016-04-26 09:49:53

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milan6

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k文件
*BOUNDARY_NON_REFLECTING
      1       1       1
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$                            LOAD DEFINITIONS                            $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*DEFINE_CURVE
      1       0    1.000    1.000    0.000    0.000
  0.000000000000E+00  0.000000000000E+00
  5.000000000000E-07 -1.000000000000E+01
  1.000000000000E-06 -2.000000000000E+01
  1.500000000000E-06 -3.000000000000E+01
  2.000000000000E-06 -4.000000000000E+01
  2.500000000000E-06 -5.000000000000E+01
  3.000000000000E-06 -4.000000000000E+01
  3.500000000000E-06 -3.000000000000E+01
  4.000000000000E-06 -2.000000000000E+01
  4.500000000000E-06 -1.000000000000E+01
  5.000000000000E-06  0.000000000000E+00
*SET_NODE_LIST
      1    0.000    0.000    0.000    0.000
   4042
*LOAD_NODE_SET
      1       3       1    1.000       0       0       0       0
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$                               RIGID BOUNDRIES                            $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$                            CONTACT DEFINITIONS                            $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$                            CONTROL OPTIONS                               $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*CONTROL_ENERGY
      2       2       2       2
*CONTROL_SHELL
  20.0          1       -1       1       2       2       1
*CONTROL_TIMESTEP
0.0000 0.9000       0  0.00    0.00
*CONTROL_TERMINATION
0.500E-03       0 0.00000 0.00000 0.00000
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$                               TIME HISTORY                               $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*DATABASE_BINARY_D3PLOT
0.2500E-06
*DATABASE_BINARY_D3THDT
0.2500E-06
*DATABASE_BINARY_D3DUMP
   328
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$                            DATABASE OPTIONS                               $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*DATABASE_EXTENT_BINARY
      0       0       3       1       0       0       0       0
      0       0       4       0       0       0
*END

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3楼2016-04-26 10:10:47

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霜小妹二

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哈哈

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【答案】应助回帖

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milan6: 金币+20, ★★★★★最佳答案 2016-04-27 22:40:42

这个还没遇见过~~~之前我们都是用Hypermesh进行设置的~~~所以也没出过这个问题啊。
*CONTROL_TERMINATION
$$  ENDTIM ENDCYC    DTMIN ENDENG ENDMAS
   0.01
*CONTROL_TIMESTEP
$$  DTINIT TSSFAC    ISDO TSLIMT    DT2MS    LCTM    ERODE    MSIST
   0.0    0.9       0    0.0-2.800E-07       0       1       0
                           0

*DATABASE_BINARY_D3PLOT
$$ DT/CYCL    LCDT    BEAM    NPLTC
5.0000E-05
      0

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