ansys警告错误原因及解决办法备忘录
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ANSYS_出现的各种错误及解决⽅法ansys警告和错误(持续更新)(2010-12-20 11:05:16)1、The value of UY at node 1195 is 449810067.It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model si properly constrained.错误的可能:1).出现了刚体位移,要增加约束2).求解之前先merge或者压缩⼀下节点3).有没有接触,如果接触定义不当,也会出现这样类似的情况4)材料属性设置不对会出现这种情况,例如密度设置的太离谱;2、Large negative pivot value...May be because of a bad temperature-dependent material property used in the model.出现这个错误很可能的原因是约束不够!请仔细检查模型!3、开始求解后出现以下提⽰,Solid model data is contaminated后来终于找到原因了有限元⽹格⾥包含⼀些未被划分⽹格的线,⼀般来说出现在⾯于⾯之间有重合的线,导致虽然⾯被划分了⽹格,却包含未被划分⽹格的线。
解决办法,把模型存为.cdb格式(去掉⼏何信息),然后再读取,就可以求解了命令:cdwrite,db,模型名,cdb听起来不错,不过也没遇到过,⼀般在划分后⽤⼀下NUMMRG命令,合并元素,以避免这种情况出现4、*** WARNING ***There are 79 small equation solver pivot terms.⼏个可能:1) 约束不够,但警告有79 个⽅程出现⼩主元,这⼀条可能性较⼩,但也不妨检查⼀下。
ansys警告错误信息汇总警告错误信息汇总NO.0001、ESYS is not valid for line element.原因:是因为我使用LATT的时候,把“--”的那个不小心填成了“1”。
经过ANSYS的命令手册里说那是没有用的项目,但是根据我的理解,这些所谓的没有用的项目实际上都是ANSYS在为后续的版本留接口。
对于LATT,实际上那个项目可能就是单元坐标系的设置。
当我发现原因后,把1改成0——即使用全局直角坐标系,就没有WARNING了。
当然,直接空白也没有问题。
NO.0002、使用*TREAD的时候,有的时候明明看文件好好的,可是却出现*TREAD end-of-file in dataread.后来仔细检查,发现我TXT的数据文件里,分隔是采用TAB键分隔的。
但是在最后一列后面,如果把鼠标点上去,发现数据后面还有一个空格键。
于是,我把每个列最后多的空格键删除,,然后发现上面的信息就没有了。
NO.0003、Coefficient ratio exceeds 1.0e8 - Check results.这个大概是跟收敛有关,但是我找不到具体的原因。
我建立的一个桥梁分析模型,尽管我分析的结果完全符合我的力学概念判断,规律完全符合基本规律,数据也基本符合实际观测,但是却还是不断出现这个警告信息。
有人知道这个信息是什么意思,怎么调试能消除吗?NO.0004、*TREAD end-of-file in data readtxt中的表格数据不完整!NO.0005、No *CREATE for *END. The *END command is ignored忘了写*END了吧,呵呵NO.0006、Keypoint 1 is referenced by only one line. Improperly connected lineset for ALcommand两条线不共点,尝试nummrg命令NO.0007、L1 is not a recognized PREP7 command, abbreviation, or macro.This command willbe ignored还没有进入prep7,先:/prep7NO.0008、Keypoint 2 belongs to line 4 and cannot be moved 同一位置点2已经存在了,尝试对同位置的生成新点换个编号,比如1002NO.0009、Shape testing revealed that 32 of the 640 new or modified elementsviolate shape warning limits. To review test results, please see theoutput 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.0010、用命令流建模的时候遇到的The drag direction (from the keypoint on drag line 27 that is closestto a keypoint KP of the given area 95) is orthogonal to the areanormal 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。
ansys常见警告和错误ansys警告和错误2010-05-03 21:471、The value of UY at node 1195 is 449810067.It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model si properly constrained.错误的可能:1).出现了刚体位移,要增加约束2).求解之前先merge或者压缩一下节点3).有没有接触,如果接触定义不当,也会出现这样类似的情况4)材料属性设置不对会出现这种情况,例如密度设置的太离谱;我自己遇到这种情况的解决方案一般是检查没有耦合的结点;我遇到过这种情况最后发现是密度设置离谱了;2、Large negative pivot value...May be because of a bad temperature-dependent material property used in the model.出现这个错误很可能的原因是约束不够!请仔细检查模型!还没碰到过这个问题3、开始求解后出现以下提示,Solid model data is contaminated后来终于找到原因了有限元网格里包含一些未被划分网格的线,一般来说出现在面于面之间有重合的线,导致虽然面被划分了网格,却包含未被划分网格的线。
解决办法,把模型存为.cdb格式(去掉几何信息),然后再读取,就可以求解了命令:cdwrite,db,模型名,cdb听起来不错,不过也没遇到过,一般在划分后用一下NUMMRG 命令,合并元素,以避免这种情况出现4、*** WARNING ***There are 79 small equation solver pivot terms.几个可能:1) 约束不够,但警告有79 个方程出现小主元,这一条可能性较小,但也不妨检查一下。
NO.0001ESYS is not valid for line element.原因:是因为我使用LATT的时候,把“--”的那个不小心填成了“1”。
经过ANSYS的命令手册里说那是没有用的项目,但是根据我的理解,这些所谓的没有用的项目实际上都是ANSYS 在为后续的版本留接口。
对于LATT,实际上那个项目可能就是单元坐标系的设置。
当我发现原因后,把1改成0——即使用全局直角坐标系,就没有WARNING了。
当然,直接空白也没有问题。
NO.0002使用*TREAD的时候,有的时候明明看文件好好的,可是却出现*TREAD end-of-file in data read.后来仔细检查,发现我TXT的数据文件里,分隔是采用TAB键分隔的。
但是在最后一列后面,如果把鼠标点上去,发现数据后面还有一个空格键。
于是,我把每个列最后多的空格键删除,然后发现上面的信息就没有了。
NO.0003Coefficient ratio exceeds 1.0e8 - Check results.这个大概是跟收敛有关,但是我找不到具体的原因。
我建立的一个桥梁分析模型,尽管我分析的结果完全符合我的力学概念判断,规律完全符合基本规律,数据也基本符合实际观测,但是却还是不断出现这个警告信息。
NO.0004*TREAD end-of-file in data readtxt中的表格数据不完整!NO.0005No *CREATE for *END. The *END command is ignored忘了写*END了吧,呵呵NO.0006Keypoint 1 is referenced by only one line. Improperly connectedline set for AL command两条线不共点,尝试nummrg命令。
NO.0007L1 is not a recognized PREP7 command, abbreviation, or macro. This command will be ignored 还没有进入prep7,先:/prep7NO.0008Keypoint 2 belongs to line 4 and cannot be moved关键点2属于线4,移动低级体素时先移动高级体素!NO.0009Shape testing revealed that 32 of the 640 new or modified elementsviolate shape warning limits. To review test results, please see theoutput 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.0010用命令流建模的时候遇到的The drag direction (from the keypoint on drag line 27 that is closestto a keypoint KP of the given area 95) is orthogonal to the areanormal 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-3VDRAG,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。
ansys警告信息汇总NO.0001、ESYS is not valid for line element.原因:是因为我使用LATT的时候,把“--”的那个不小心填成了“1”。
经过ANSYS的命令手册里说那是没有用的项目,但是根据我的理解,这些所谓的没有用的项目实际上都是ANSYS 在为后续的版本留接口。
对于LATT,实际上那个项目可能就是单元坐标系的设置。
当我发现原因后,把1改成0——即使用全局直角坐标系,就没有WARNING了。
当然,直接空白也没有问题。
NO.0002、使用*TREAD的时候,有的时候明明看文件好好的,可是却出现*TREADend-of-file in data read. 后来仔细检查,发现我TXT的数据文件里,分隔是采用TAB键分隔的。
但是在最后一列后面,如果把鼠标点上去,发现数据后面还有一个空格键。
于是,我把每个列最后多的空格键删除,,然后发现上面的信息就没有了。
NO.0003、Coefficient ratio exceeds 1.0e8 - Check results.这个大概是跟收敛有关,但是我找不到具体的原因。
我建立的一个桥梁分析模型,尽管我分析的结果完全符合我的力学概念判断,规律完全符合基本规律,数据也基本符合实际观测,但是却还是不断出现这个警告信息。
有人知道这个信息是什么意思,怎么调试能消除吗?by timebirdsNO.0004、*TREAD end-of-file in data readtxt中的表格数据不完整!NO.0005、No *CREATE for *END. The *END command is ignored忘了写*END了吧,呵呵NO.0006、Keypoint 1 is referenced by only one line. Improperly connected line set for AL command两条线不共点,尝试nummrg命令NO.0007、L1 is not a recognized PREP7 command, abbreviation, or macro. This command willbe ignored还没有进入prep7,先:/prep7NO.0008、Keypoint 2 belongs to line 4 and cannot be moved同一位置点2已经存在了,尝试对同位置的生成新点换个编号,比如1002by[url=/forum/space-uid-253825.html][b][size=2][color=#96b0af]paladinlau 1[/color][/size][/b][/url]-----------------------------------------------------------------------------------------------NO.0009、Shape testing revealed that 32 of the 640 new or modified elementsviolate shape warning limits. To review test results, please see theoutput 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.0010、用命令流建模的时候遇到的The drag direction (from the keypoint on drag line 27 that is closestto a keypoint KP of the given area 95) is orthogonal to the areanormal 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-3VDRAG,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by[url=/forum/space-uid-131386.html][b][size=2][color=#96b0af]cowry[/col or][/size][/b][/url][align=left]NO.0011、[/align][align=left]我在计算三维的时候出现一个error,如图所示,不知道代表什么意思啊?是说我的内存不足么?请问各位大侠,碰到这种问题应该怎么解决呢?当选择自由划分网格的时候,怎么样能使默认最小的网格更小呢?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(by[url=/forum/space-uid-229771.html][b][size=2][color=#96b0af]kitty_zoe[/ color][/size][/b][/url] )[/align][align=left]你划分的网格太细了,内存不足。
ansys_常见警告和错误(Ansys_ common errors and warnings)False possibility:1) a rigid body displacement occurs, adding constraints2) before solving merge or compression node3) there is no contact, and if the definition of contact is incorrect, a similar situation will occur4) this can happen if material properties are set incorrectly. For example, the density setting is too far off the mark;My own solution to this situation is to check the nodes without coupling; I've encountered this situation and finally found that the density is off the mark;2, Large, negative, pivot, value...May, be, because, of, a, bad, temperature-dependent, material, property, used,, in, the, model.The reason for this error is probably the lack of restraint!Please check the model carefully!I haven't met the problem yet3, after the beginning of the following tips,Solid, model, data, is, contaminatedFinally, I found out whyThe finite element mesh contains lines that are not divided into grids. In general, there is a coincidence between the faces, which leads to the fact that the mesh is divided into lines, but contains lines that have not been meshed.The solution is to store the model in.Cdb format (remove geometry information) and then read it to solve itCommand: cdwrite, DB, model name, CDBSounds good, but I haven't encountered it yet. After the partition, I use the NUMMRG command and merge elements to avoid this4, * * * WARNING * * *There are 79, small, equation, solver, pivot, terms.Several possibilities:1) the constraint is not enough, but the warning has 79 equations to appear small principal element, this one possibility is smaller, but may as well examine.2) the material parameter has the question, may examine the material data whether to lose the mistake.3) or some units did not make the material. You can use Select,Entities, ->, Element, ->, Attributes, ->, Material, Type, ->, and 0 (material number 0) to see if this is the case4) the structure is not one, that is, there are several independent entity groups, you can do modal analysis first to see if there is something alone vibration, or even fly out.I haven't had this problem, I hope5 、 appear frequently when importing the IGES fileBecause, keypoint, merging, has, been, performed, not, automatic, volume, creation, is, suppressedThis warning indicates that there is a coincidence point in the model. You can merge keypoint in ANSYSFor a slightly more complex model, IGES format is not recommended, either in PRT or.X-t formatIn addition, we recommend learning ANSYS WorkbenchIts interface is much better than ANSYS's.Did not encounter, it seems that practice or less, and more uphill to meet the tiger6, negative, radius, on, elementThe reason for the error of the negative radius:The axial symmetry problem in ANSYS is not the same as other software.Requirements must be Y Axis axis, and the model must be drawn on the positive half axis X, if your model to the negative half of XThere will be hints about the negative radius.Have encountered this problem,However, at that time did not figure out, and now understand, summed up the past, the perfect self7, input/output, error, on, unit=9., possible, full, diskProbably:1) the hard disk partition in the ANSYS working directory is full; (very likely)2) the system's virtual memory is full of hard disk partitions; (there is a certain possibility)3) the hard disk has bad sectors. (less likely)Sometimes is actually other errors (such as calculation and convergence), but false positives for disk space is not enough, therefore, need to observe the change process of disk space calculation, to determine whether the problem is indeed a disk space.Encountered this problem, but I do not know what the principle is solved, when the division is more, and then I reduce the unit to the previous 1/3, the results can be calculated. The remaining space of my disk has 100G, should not be first reasons, 2G memory, and the virtual memory is also adjusted, but still can not, so the second may also be smaller, as far as 3 is impossible8, when the grid is divided in ANSYS16, ANGLE, LESS, THAN, 2.5, DEGREES, FOUND, IN, TRIANGLE, FACETS, OF, VOLUME,, WITHSMALLEST, ANGLE, =1.2, POOR, ELEMENT, QUALITY, OR, MESH,, FAILURE, MAY, RESULT.What should I do to avoid this warning?. What is the problem if you ignore the solution?PS: when I use the automatic mesh model, there is the UG import, and the ANSYS version is 8The model directly imported must be repairedMerge the smaller line segmentsA few unimportant details are removedThen you can partition the meshDirect division must lead to the emergence of many distortion unitsNo, individuals tend to model directly9, Real, constant, set, -1, undefined, but, referenced,, by, elementThe element properties of the element quoted by unit 232 are out of order. The real constants of the units are usually checked. Does that define a problem?10, run after warning both solid loading model and finite element model boundary conditon have been apply to this model, as solid loads are transferred to the nodes or elements, they can overwrite directly applied loads this is to tell you, if you are on line or to face restrictions imposed by force or, rather than directly to the node the applied force or constraint. In the solution, it will force you to go to the node. Boolean, operation, Try, adjusting, the, tolerance, value, on, the, failed.BTOL, command, to, some, fraction, of, the, minimum, distance.Model, keypointSize (current, problem), 2.996529e+001, current, BTOL, setting1.000000e-005, minimum KPT distance 1.241535e-004. said the Boolean operation is the key point of the minimum distance between negligible exceeds the tolerance ANSYS by default, tolerance can be through the BTOL command to change the defaultby large Boolean operations,After that, the tolerance value is transferred back. The default tolerance value is 1E-5. Command format: BTOL, tolerance valueDiscontinuous, drag, line, pattern, for, ADRAG,, command, or, more, than, twoLines, attached, to, a, keypoint, in, the, drag, pattern., lineIn the process of dragging the line into line, if you want to drag more than one line at a time, you should note that the above error means that the object (line) is interrupted or that there is an intersection point with the path line. That is to say, if you want to drag more than one line at a time, you should ensure that these lines are continuous and do not intersect the path line.。
ANSYS警告和报错信息汇总NO.0001、ESYS is not validfor line elemen t.原因:是因为我使用LATT的时候,把“--”的那个不小心填成了“1”。
经过ANSY S的命令手册里说那是没有用的项目,但是根据我的理解,这些所谓的没有用的项目实际上都是ANSYS在为后续的版本留接口。
对于LATT,实际上那个项目可能就是单元坐标系的设置。
当我发现原因后,把1改成0——即使用全局直角坐标系,就没有WAR NING了。
当然,直接空白也没有问题。
NO.0002、使用*TREAD的时候,有的时候明明看文件好好的,可是却出现*TREADend-of-file in data read.后来仔细检查,发现我TXT的数据文件里,分隔是采用T AB键分隔的。
但是在最后一列后面,如果把鼠标点上去,发现数据后面还有一个空格键。
于是,我把每个列最后多的空格键删除,,然后发现上面的信息就没有了。
NO.0003、Coeffi cient ratioexceed s 1.0e8 - Checkresult s.这个大概是跟收敛有关,但是我找不到具体的原因。
我建立的一个桥梁分析模型,尽管我分析的结果完全符合我的力学概念判断,规律完全符合基本规律,数据也基本符合实际观测,但是却还是不断出现这个警告信息。
有人知道这个信息是什么意思,怎么调试能消除吗?NO.0004、*TREADend-of-file in data readtxt中的表格数据不完整!NO.0005、No *CREATE for *END. The *END comman d is ignore d忘了写*END了吧,呵呵NO.0006、 Keypoi nt 1 is refere ncedby only one line. Improp erlyconnec ted line set for AL comman d 两条线不共点,尝试 nummrg命令NO.0007、 L1 is not a recogn izedPREP7comman d, abbrev iatio n, or macro. This comman d will be ignore d还没有进入p rep7,先:/prep7NO.0008、Keypoi nt 2 belong s to line 4 and cannot be moved同一位置点2已经存在了,尝试对同位置的生成新点换个编号,比如1002NO.0009、Shapetestin g reveal ed that 32 of the 640 new or modifi ed elemen tsviolat e shapewarnin g limits. To review test result s, please see theoutput file or issuethe CHECKcomman d.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.0010、用命令流建模的时候遇到的The drag direct ion (from the keypoi nt on drag line 27 that is closes tto a keypoi nt KP of the givenarea 95) is orthog onalto the areanormal at that KP. Area cannot be dragge d by the VDRAGcomman d.意思是拉伸源面的法向与拉伸路径垂直,不能使用VD RAG命令。
、ESYS is not valid for line element.原因:是因为我使用LATT的时候,把“--”的那个不小心填成了“1”。
经过ANSYS的命令手册里说那是没有用的项目,但是根据我的理解,这些所谓的没有用的项目实际上都是ANSYS在为后续的版本留接口。
对于LATT,实际上那个项目可能就是单元坐标系的设置。
当我发现原因后,把1改成0——即使用全局直角坐标系,就没有WARNING了。
当然,直接空白也没有问题。
、使用*TREAD的时候,有的时候明明看文件好好的,可是却出现 *TREAD end-of-file in data read.后来仔细检查,发现我TXT的数据文件里,分隔是采用TAB键分隔的。
但是在最后一列后面,如果把鼠标点上去,发现数据后面还有一个空格键。
于是,我把每个列最后多的空格键删除,,然后发现上面的信息就没有了。
、 Coefficient ratio exceeds - Check results.这个大概是跟收敛有关,但是我找不到具体的原因。
我建立的一个桥梁分析模型,尽管我分析的结果完全符合我的力学概念判断,规律完全符合基本规律,数据也基本符合实际观测,但是却还是不断出现这个警告信息。
有人知道这个信息是什么意思,怎么调试能消除吗、*TREAD end-of-file in data readtxt中的表格数据不完整!、No *CREATE for *END. The *END command is ignored忘了写*END了吧,呵呵、 Keypoint 1 is referenced by only one line. Improperly connected line set for AL command两条线不共点,尝试 nummrg命令、 L1 is not a recognized PREP7 command, abbreviation, or command will be ignored还没有进入prep7,先:/prep7、Keypoint 2 belongs to line 4 and cannot be moved同一位置点2已经存在了,尝试对同位置的生成新点换个编号,比如1002、Shape testing revealed that 32 of the 640 new or modified elements violate shape warning 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、用命令流建模的时候遇到的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 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。
ANSYS软件错误集锦1 在Ansys中出现“Shape testing revealed that 450 of the 1500 new or modified elements violate shape warning limits.”,是什么原因造成的呢?单元网格质量不够好,尽量用规则化网格,或者再较为细密一点。
2 在Ansys中,用Area Fillet对两空间曲面进行倒角时出现以下错误:Area 6 offset could not fully converge to offset distance 10. Maximum error between the two surfaces is 1% of offset distance.请问这是什么错误?怎么解决?其中一个是圆柱接管表面,一个是碟形封头表面。
ansys的布尔操作能力比较弱。
如果一定要在ansys里面做的话,那么你试试看先对线进行倒角,然后由倒角后的线形成倒角的面。
建议最好用UG、PRO/E这类软件生成实体模型然后导入到ansys。
3 在Ansys中,出现错误“There are 21 small equati on solver pivot terms。
”,是否是在建立接触contact时出现的错误?不是建立接触对的错误,一般是单元形状质量太差(例如有接近零度的锐角或者接近180度的钝角)造成small equation solver pivot terms4 在Ansys中,出现警告“SOLID45 wedges are recommended only in regions of relatively low stress gradients.”,是什么意思?"这只是一个警告,它告诉你:推荐SOLID45单元只用在应力梯度较低的区域。
它只是告诉你注意这个问题,如果应力梯度较高,则可能计算结果不可信。
"5 ansys向adams导的过程中,出现如下问题“There is not enough memory for the Sparse Matrix Solver to proceed.Please shut down other applications that may be running or increase the virtual memory on your system and return ANSYS.Memory currently allocated for the Sparse Matrix Solver=50MB.Memory currently required for the Sparse Matrix Solver to continue=25MB”,是什么原因造成的?不清楚你ansys导入adams过程中怎么还需要使用Sparse Matrix Solver(稀疏矩阵求解器)。
ANSYS常见错误和警告及其解决方法1、some contact elements overlap with the other contact element which can cause over constraint。
一些接触单元与其他接触单元重叠,这可能导致过度约束。
解决方法:这是由于在同一实体上,即有绑定接触(MPC)的定义,又有刚性区或远端载荷(MPC)的定义,操作中在定义刚性区或远端载荷时避免选择不必要的DOF自由度,以消除过约束。
2、error:element type 1 is PLANE42,which can't be used with the VMES command,meshing of volume 3 aborted。
单元类型1是PLANE42,不能使用命令VMES划分体网格,划分体3中止。
解决方法:修改单元类型为适合体网格的单元类型,如solid、shell等;使用AMESH。
3、error:keypoint 10 is referenced by only one line. Improperly connected line set for AL command。
关键点10只在一条线上。
不适合使用AL命令连接线。
解决方法:AL命令是用线来定义面,而选择两条线可能只有两个关键点,因为关键点10不在线上,而定义面至少有三个点,因此,需要再选一条线。
4、Element type 1 is Solid95,which can not be used with the AMES command,meshing of area 2 aborted。
这是因为不同单元类型对应不同的划分网格操作。
上面的错误是因为单元类型为Solid95(实体单元),不能用AMES命令划分面网格。
5、Shear modulus must be positive for material 1 in element 1。
ansys警告错误原因及解决办法备忘录
已有 1860 次阅读2007-6-18 03:03
今后我将把使用ANSYS做项目过程中碰到的错误及解决办法帖上来!
希望大家指正!
遇到不能解决的问题也希望大家提点建议,
先谢谢各位了!
如果你碰到了什么难解决的error
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发表评论评论 (7 个评论)
回复xuruikl 2007-6-18 03:05
input/output error on unit=9. possible full disk 可能: 1.ansys 工作目录所在的硬盘分区满了;(可能性很大) 2.系统虚拟内存所在的硬盘分区满了;(有一定可能性) 3.硬盘有坏道。
(可能性较小)有时实际上是其它错误 (如计算不收敛等),却误报为盘空间不够,因此,需要观察计算过程中盘空间的变化,以判断是否确实是盘空间的问题。
回复xuruikl 2007-6-18 03:06
negative radius on element 出现负半径这样的错误的原因: ANSYS里规定轴对称问题跟别的软件不太一样。
要求轴线必须是Y轴,而且模型必须画在x轴的正半边,如果你的模型画到X的负半边就会有所谓负半径的提示信息了。
回复xuruikl 2007-6-18 03:06
在导入IGES文件时老出现 Because keypoint merging has not been
performed,automatic volume creation is suppressed 这句警告说明模型里有重合的点,你可以在ansys里合并keypoint 对于稍微复杂的模型
都不建议用iges格式,建议用,prt格式或者.x-t格式另外推荐大家学习ansys workbench 它的接口做的比ansys强很多
回复xuruikl 2007-6-18 03:07
遇到了一个问题开始求解后出现以下提示, Solid model data is
contaminated 后来终于找到原因了有限元网格里包含一些未被划分网格
的线,一般来说出现在面于面之间有重合的线,导致虽然面被划分了网格,却包含未被划分网格的线。
解决办法,把模型存为.cdb格式(去掉几何
信息),然后再读取,就可以求解了命令:cdwrite,db,模型名,cdb
回复xuruikl 2007-6-18 03:07
Large negative pivot value... May be because of a bad
temperature-dependent material property used in the model. 出现
这个错误很可能的原因是约束不够!请仔细检查模型!
回复xuruikl 2007-6-18 03:11
The value of UY at node 1195 is 449810067.It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model si properly constrained. 错误的可能: 1.出现了刚体位移,要增加约束 2.
求解之前先merge或者压缩一下节点 3.有没有接触,如果接触定义不当,也会出现这样类似的情况
回复gufubin7669 2008-6-26 17:05
在钢筋混凝土梁的ansys分析中用pipe20建立钢筋模型分析是提示:
Element 1 has a diameter to thickness ratio less than 10. The assumed thin-walled pipe theory is not valid. Check real constant table 2.
是怎么回事儿,该怎么解决?。