求教,ansys接触分析出现的警告提示?最后紫色线在青色线上方.算是收敛了吧

求教,ansys接触分析出现的警告提示?最后紫色线在青色线上方.算是收敛了吧
1,Volume 85 is being meshed entirely with SOLID45 tetrahedra, which can be much less accurate than bricks. Use quadratic (10-node) tetrahedra if available.
2, Shape testing revealed that 7 of the 1008955 new or modified elements violate shape warning limits. To review test results, please see the output file
or issue the CHECK command.
3, Unselected line 570.
4, PRETS179 element maintains its original orientation in a large deformation analysis.

5, Meshes made up of 10 percent or more of SOLID45 tetrahedra are not recommended.
6, Previous testing revealed that 7 of the 1291273 selected elements violate shape warning limits. To review warning messages, please see the output or
error file, or issue the CHECK command.

7, Some target elements on target surface specified by real constant set 3 belong to symmetric contact (e.g.3), some do not.
8,There are 106 small equation solver pivot terms.
9,Contact element 1157861 (real ID 7) has too much penetration 0.924635124 related to target element 1261698.

10, Solution not converged at time 1 (load step 1 substep 1). Run terminated.
11, The unconverged solution (identified as time 1 substep 999999) is output for analysis debug purposes. Results should not be used for any other purpose.

求教高手指点,我这些整个运行下来的错误,哪些是应该修改的,哪些是正常的.怎么修改?

Solution not converged ,这表示没有收敛,你的计算肯定是以弹出error对话框终止的.你这问题,重做,建议,这么多警告和error,问题解的可靠性太差了.Results should not be used for any other purpose.告诉你不建议使用问题的结果.警告1表示单元精度不够,换单元类型；警告2表示网格划分不满足要求,重新划分网格；警告3,有一条线没选上,不知道对问题有多大影响；其他慢慢分析吧,反正建议不要敷衍过去,好好看看有限元,这结果不太可靠.