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请教各位,最近abaqus standard使用python脚本设置某分析步初始增量步0.025,inp文件也是记录0.025,但是实际脚本命令mdb.jobs[].submit计算发现初始增量步取了0.008,改用bat文件也是被自动“修正”为0.008。更改初始增量步或把inp文件放到别的电脑上也会出现这样的缩减。不明白为什么会出现这种情况
最近一批相同构造不同尺寸的模型在计算,只有一个模型出现这种情况
以下是inp文件中某一分析步(第三个分析步)设定的增量步参数
- ......
- ** ----------------------------------------------------------------
- **
- ** step: ml
- **
- *step, name=ml, nlgeom=yes, inc=10000
- *static
- 0.025, 1., 1e-08, 0.025
- **
- ......
复制代码 以下是msg文件中该分析步的相关信息
- ......
- print of increment number, time, etc., every 1 increments
- the maximum number of increments in this step is 10000
- large displacement theory will be used
- unsymmetric matrix storage and solution will be used
- linear extrapolation will be used
- characteristic element length 11.6
- details regarding actual solution wavefront requested
- detailed output of diagnostics to database requested
- print of increment number, time, etc., to the message file every 1 increments
- element operations will be carried out in parallel using 6 processors
- the initial time increment was reduced to 8.000e-03 to meet the next output time point
- collecting step constraint information for overconstraint checks
- ......
复制代码 与其它没有发生这种情况的模型相比多出了一条“the initial time increment was reduced to 8.000e-03 to meet the next output time point”的信息,但不明白为什么会出现这样的情况。
感谢各位大神的解答!
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