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楼主 |
发表于 2014-8-29 09:58:28
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NO.0026
Keypoint 2 belongs to line 4 and cannot be moved
点2从属于线4,所以不能移动。
NO.0027
K is not a recognized BEGIN command, abbreviation, or macro. This command will be ignored.
没有进入前处理模块,不能创建关键点
直接用命令操作的时候要先进入前处理模块或输入 /PREP7
NO.0028
Shape testing revealed that 32 of the 640 new or modified elements
violate shape warning limits. To review test results, please see the
output file or issue the CHECK command.
单元形状奇异,在我的模型中6面体单元的三个边长差距较大,可忽略该错误
NO.0029
The drag direction (from the keypoint on drag line 27 that is closest
to a keypoint KP of the given area 95) is orthogonal to the area
normal at that KP. Area cannot be dragged by the VDRAG command.
意思是拉伸源面的法向与拉伸路径垂直,不能使用VDRAG命令
出现的环境
ASEL,S,LOC,Z,143e-3
VDRAG,ALL, , , , , , 27
本意是按位置z=143e-3位置的面,然后沿编号27的线拉伸,出错,之前用该语句没有任何问题
检查发现选面的命令多选了一些面,把挨着要选择面的一些面选进来了
将该语句修改后没有问题
ASEL,S,LOC,Z,143e-3,144e-3
位置的最大最小值可能需要根据具体的模型调整
NO.0030
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
划分的网格太细了,内存不足。建议将模型划分为几个部分,分部分进行划分,可以减少内存使用
NO.0031
在MAC文件中中文的注释前的感叹号必须是英文格式下输入的,如果是中文格式的,宏文件运行会出错
NO.0032
ring model建立时候遇到的Brick element 4731 has an aspect ratio of 1000, which exceedsthe warning limit of 20.单元网格奇异,跟我上面贴的一个帖子差不多。网格划分的时候如果单元的两边长度差距比例超过20就会有该错误不过一般的情况下这个错误也可以不理他NO.0033clear is not a recognized GEGIN command,abbreviation,or macro.this command will be ingored.那是因为打开了前处理,求解或者后处理,先用FINISH命令,再用CLEAR就可以了NO.0034solid95单元建立的混凝土单元,分网之后(方法是:先在面上指定单元尺寸,自由划分,然后vsweep分体)弹出警告:solid95单元只被推荐用于低应力区域.然后在求解过程中又出错误:(一加重力就出这样的错误)*** ERROR *** CP= 1971.078 TIME= 20:41:10One or more elements have become highly distorted. Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. Try incrementing the load more slowly (increase the number of substeps or decrease the time step size). You may need to improve your mesh to obtain elements with better aspect ratios. Also consider the behavior of materials, contact pairs, and/or constraint equations. If this message appears in the first iteration of first substep, be sure to perform element shape checking.第一个警告一般都会出现的,只是提醒你solid95单元只被推荐用于低应力区域。没有什么问题的。第二个error是单元高度扭曲。按照它提醒的做,把载荷子步变多一点有时候能够解决问题。如果不行就检查网格划分得是不是比较好。NO.0035Large negative pivot value ( -8.419662714E-03 ) in Eqn.system. May be because of a badtemperature-dependent material property used in the model.这种错误经常出现的。一般与单元形状有关。NO.0036Both solid model and finite element model boundary conditions have been 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.0037solid 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: |
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