作业题求助

各位大神，本人正在做两道题的作业，我已经将命令流写好，因为我题目要求要换单元和划分尺寸，所以之后的mesh和solve没写进去。问题如下：

4.1中，总是提示【Shape testing revealed that 6 of the 12 new or modified elements violate shape warning limits. To review test results, please see the output file or issue the CHECK command.】如果忽略这个问题，求解的结果和老师的要求也相差很大。

4.2中，不能得到正确的划分，我这里的模型一共有12个volume,我希望每个都是一个单元，然后再一分为二，进行精度的比较。我调节mesh size无法做到。并且，总是提醒我，【Structural elements without mid nodes usually produce much more accurate results in quad or brick shape. 】和【Volume 18 is being meshed entirely with SOLID185 tetrahedra, which can  be much less accurate than bricks.  Use quadratic (10-node) tetrahedra   if available. 】

我已经将我的命令流和作业题目上传至附件中，麻烦大神指点迷津！

4.1.txt

4.2.txt

A4 3D solid & Assembly.pdf