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applied to this model.As solid loads are transferred to the nodes or elements,they can overwritte diretly applied loads.

主要是在一些边线的节点会有载荷,边界条件的约束同时施加在上面,一个会覆盖掉另外一个 一般忽略该警告 NO.0037

solid model data is contaminated

实体模型被污染了(布尔操作中经常出现)

原因就是布尔操作中出现运算错误,实体模型被污染。 解决办法:1、修补模型。 2、最好的还是重新建立模型。

关于这个,还有一种方法是将模型用write命令写出来,然后用read命令读进去就好了 NO.0038

建了一个三维结构的模型模型中土体材料使用ansys中的dp模型,可是每次一使用dp模型时,计算怎么也不收敛,我用mcheck命令检查了一下单元,出现了类似以下的好多warning:

*** WARNING *** SUPPRESSED MESSAGE CP = 4.828 TIME= 20:58:40

Element 3526 node 5851 is part of at least 2 distinct sets of exterior element faces. This may indicate that the attached elements are connected in an unusual manner.

Element 3526 node 5851同时是两个(及以上)单元外表面的一部分。这意味着,相互连接的单元式以一种不寻常的方式连接起来的。

也就是说,网格质量过差,导致不收敛。、需要把网格划分好一点 NO.0039

在做塔的屈曲分析时(用弧长法)出现了如下错误,请高手给看看是哪里出了问题该怎么改:

*** WARNING *** CP= 13938.412 TIME= 16:43:51

Kinematic Plasticity algorithm does not converge for element 79, material ID 1.

使用Kinematic Plasticity 准则在某个节点处不收敛。 要不换一个准则试试看 NO.0040

用wishangtian 斑竹的方法将屈服准则改为BISO能够收敛了,可是根据计算结果,为什么得不到位移荷载曲线,我用的命令是: nsol,2,nx_node(77),u,x

PROD,3,1, , , , , ,alfa,1,1, !是时间与力的乘积求荷载的变化 xvar,2

plvar,3 出现下列错误:

*** WARNING *** CP= 1475.792 TIME= 19:31:49

The variable viewer requires a NUMVAR of 200. The calculator will not be available. To use the caclulator please export your data to a file; then choose the 'Clear Time-History Data' button; and then import your data from the file. *** WARNING *** CP= 69.720 TIME= 18:00:39

The view for graph plots is currently NOT changeable. To enable graph view manipulation, issue /GROPTS,VIEW,1. *** WARNING *** CP= 1475.792 TIME= 19:31:49

The variable viewer requires a NUMVAR of 200. The calculator will not be available. To use the caclulator please export your data to a file; then choose the 'Clear Time-History Data' button; and then import your data from the file.

以上内容的意思:变量查看器需要一个200的数值变量(a NUMVAR of 200.翻译得不准确),计算器将不能使用。请把你的数据导出到文件,然后清除时间历程数据,然后再从文件中导入数据。 你照警告说的做一下看行不行。

*** WARNING *** CP= 69.720 TIME= 18:00:39

The view for graph plots is currently NOT changeable. To enable graph view manipulation, issue /GROPTS,VIEW,1.

以上警告的意思:图形显示结果目前不能改变。请使用/GROPTS,VIEW,1命令。 NO.0041

The value of UY at node 1777is 1545455,It is greater than the current limit of 100000.

This generally indicates ragid body motion as a resul of an unconstrained model。Verrify that your model is properly constrained。 约束不足,产生了刚性漂移

另外一个可能的原因是网格划分的不好。在曲线变化剧烈的区域,如果网格划的太疏,也可能产生这样的错误。 NO.0042

在做接触分析时,遇到如下warning

some contact elements overlap with the other contact element which can cause over constraint

可能是图中的元素有重叠,如两个体有部分面重叠,用overlap命令可以解决 NO.0043

*** FATAL *** CP = 169.906 TIME= 15:50:03

Insufficient memory error during solution. Please reduce your problem size or increase your system swapped space (refer to the Basic

Analysis Procedures Guide,

Ch. 19).

*** FATAL *** CP = 172.344 TIME= 15:50:24

This model requires more scratch space than available, currently 8026545 words ( 31 MB). ANSYS was not able to allocate more memory to proceed. Please shut down other applications that may be running or increase the virtual memory on your system and rerun ANSYS. Problem terminated.

************************************************************************

The above error is non-recoverable by ANSYS ANSYS run terminated by the indicated error Current data base saved if possible. ************************************************************************

我在计算过程中碰到过几次这样的错误,计算被迫中断。模型最终的节点有100万左右,有时在别人的机子上可以计算下去(软件设置基本一样),但在我的机子上就会弹出这样的错误信息。现在还不清楚具体原因,初步怀疑和机子的硬件有关系。不知有人知道具体原因吗?

原来我的虚拟内存设置为“无分页文件”,现在改为“系统管理”,就不在出现计算内存不够的情况了。 NO.0044

error:Meshing of volume 5 has been aborted because of a lack of memory. Closed down other processes and/or choose a larger element size, then try the VMESH command again. Minimum additional memory required=853MB 不一定是网格太密,也可能是结果过于拓扑问题,使得无法计算 NO.0045

Keypoint 1 is referenced by only one line. Improperly connected line set for AL command.

使用AL命令时,你的所有线没有闭合。既然要形成面,就必须要求所有的线围起来,形成闭合的回路。再换一句话说就是上面的英文警告说的:每个关键点必须同时被两条线共用才能保证形成面。如果有关键点只被一条线使用,当然就不能形成面了。 NO.0046

*** WARNING *** CP = 24.312 TIME= 18:23:02

Due to merging of areas 3251 and 3304, nodes 52094 through 52101 are no longer associated with any area.

这个警告只是提醒你,面3251和3304相互merge之后,节点52094到52101这些节点都不再和任何面有关联。

After NUMMRG,ALL, node 84 (and possibly others) is associated with more than one solid model entity. Future commands which depend on the node to solid model connectivity (meshing, mesh clearing, solid BC transfer, etc.) may not operate properly.

上面这个警告也是提醒你:节点84同时属于号几个实体,在之后的操作中,如果操作到这个节点将有可能不能正确执行。 NO.0047

划分网格时遇到的错误: Error Area 22 is not parallel to the global XY plane, Cannot mesh with 2-D planar elements

你建立的是2D模型,一般图形都与XY面平行的面内建立。 你检查下你的关键点选区是不是有的点取成3D坐标,导致形成面部不平行于XY面。具体要根据你自己的建模进行分析. NO.0048

the anel material 2 at temperature=0 is not positive defineite,a full 6*6 matrix is need as at least one element typeinthe medel is 3_d cheeck input. 这个是自己在进行属性定义时候出现的,查找原因,因为自己做的是pzt材料的压电效应分析。并且是3_d模型,ANEL命令矩阵设定应该是6*6的矩阵,但是由于自己粗心,矩阵输入没有完全,导致运行失败,所以希望以后大家在属性设定时候特别留意,特别是需要输入矩阵情况时候。 NO.0049

Unable to mesh area 9 because of shape problems. It may help to change element size on edges of area.

z这个是自己在对半圆环的面进行网格划分时候遇到的,因为为了保证和前个半圆的网格划分对应采用对应网格划分 ASEL,S,AREA,,9 TYPE,4 MAT,6 ESIZE,,1 MSHAPE,0,3 AMESH,ALL

LINE定义时候没有进行线划分,使用LESIZE命令对线进行划分,后面在使用ESIZE,,1 MSHAPE,0,3 AMESH,ALL 问题解决

方法2:直接在ESIZE命令中定义尺寸,例如如果网格大小为3MM可以这样定义ESIZE,3E-3 NO.0050

*** WARNING *** CP = 22.781 TIME= 11:14:33

Please report this system error from sfelem to your ASD or ANSYS, Inc.