ansys分析中遇到的error

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ansys常见错误和解决方法

ansys常见错误和解决方法

ESYS is not valid for line element.原因:是因为我使用LA TT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LA TT,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W ARNING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 *CREA TE 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 connected line 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出现的各种错误及解决方法

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 11:05:161、The value of UY at node 1195 is is greater than the current limit of 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、WARNINGThere 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;2 材料参数有问题,可以检查一下材料数据有否输错;3 或者有的单元未赋于材料号;可以用Select Entities -> Element -> Attributes -> Material Type -> 0 材料号给以0,看看是否有此情况4 结构不是一体,即存在几个独立的实体组,可以先做一下模态分析,看看有没有东西单独振动甚至飞出来;5、在导入IGES文件时出现Because keypoint merging has not been performed,automatic volume creation is suppressed.分析:这句警告说明模型里有重合的点解决办法:1把要导入的.iges文件复制到ANSYS默认保存的目录,再次打开即可;2把要导入的.iges文件保存成.x-t格式的文件,使用SolidWorks等软件;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6、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;7、input/output error on unit=9. possible full disk可能:1ansys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;8、在ansys里划分网格时出现16 ANGLE LESS THAN DEGREES FOUND IN TRIANGLE FACETS OF VOLUME1,WITHSMALLEST ANGLE = POOR ELEMENT QUALITY OR MESH FAILURE MAY RESULT. 应该如何设置才能不出现这个警告;如果忽略在求解时会有什么问题么ps :我用的时自动网格划分模型时有ug导入ansys版本为直接导入的模型必须经过修理才行把小尺寸的线段合并一下一些无关紧要的细节去掉然后才可以划分网格直接划分肯定要导致很多畸变单元的出现9、Real constant set -1 undefined but referenced by element 232.232号单元引用的构件性质实参数出错;10、加载运行后出现警告both solid 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 loads11、运行后出再错误Boolean operation failed. Try adjusting the tolerance value on theBTOL command to some fraction of the minimum keypointSize current problem +001, current BTOL setting, minimum KPT distance .12、Discontinuous drag line pattern for ADRAG command or more than twolines attached to a keypoint in the drag line pattern.在拖拉线成面的过程中,如果想一次多拖拉几条线时应该注意,上述错误是说,拖拉对象线是间断的,或者与路径线有交点;也就是说,如果要想一次多拖拉几条线的话,应该保证这些线是连续的,且与路径线不相交;input volumes do not meet the conditions required for the VGLU operation. No new entities were created. The VOVLAP operation is a possible alternative.在对体进行固结操作时,有干涉发生,或者程序认为要连接的体距离过大而报错;另外,尽量不要选择Pick All一次选择所有的体,每次只选择2,3个这样出错时容易发现;。

ansys常见运行错误及解决办法

ansys常见运行错误及解决办法

ANSYS常见运行错误及其解决办法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ANS YS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 connected line 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。

ANSYS-出现的各种错误及解决方法

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_常见警告和错误(Ansys_commonerrorsandwarnings)

ansys_常见警告和错误(Ansys_commonerrorsandwarnings)

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, -&gt, Element, -&gt, Attributes, -&gt, Material, Type, -&gt, 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常见错误汇总

ansys常见错误汇总

常见waring/erroe 汇总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 connected line set for AL command 两条线不共点,尝试nummrg命令。

ansys常见Warning和error

ansys常见Warning和error

(源自CAD之家)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 connected line 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 workbench unexpected error parameter

ansys workbench unexpected error parameter

ansys workbench unexpected error parameter摘要:1.Ansys Workbench 简介2.错误参数的常见原因a.软件版本不兼容b.模型几何问题c.材料属性设置错误d.边界条件设置不合理e.求解器设置问题3.错误参数的解决方法a.更新软件版本b.检查并修复模型几何c.核对材料属性d.调整边界条件e.检查求解器设置4.结论正文:Ansys Workbench 是一款功能强大的工程仿真和设计软件,广泛应用于各种物理场的仿真分析。

但在使用过程中,用户可能会遇到错误参数的提示,导致仿真结果无法正常进行。

本文将针对这一问题,介绍错误参数的常见原因及解决方法。

首先,我们来了解一下Ansys Workbench。

它是一款基于Ansys 公司研发的有限元分析(FEA)软件,通过将各种物理场(如结构、热、流体、电磁等)集成在一个统一的界面中,使得用户可以更方便地进行仿真分析。

在使用Ansys Workbench 时,可能会遇到错误参数的提示。

这些错误的产生可能有以下几个原因:1.软件版本不兼容:当用户使用的软件版本与其他插件或模块不兼容时,可能会出现错误参数。

此时,用户可以尝试更新软件版本,或者寻求技术支持,了解兼容的插件版本。

2.模型几何问题:模型的几何结构对于仿真结果至关重要。

如果模型几何存在问题,如拓扑结构不正确、边界条件定义不清等,都可能导致错误参数。

针对此类问题,用户应检查并修复模型几何,确保其符合仿真分析的要求。

3.材料属性设置错误:材料属性是仿真分析的基础,如果设置错误,可能导致错误的仿真结果。

因此,用户在使用Ansys Workbench 时,应仔细核对材料属性,确保其正确无误。

4.边界条件设置不合理:边界条件对于仿真结果具有很大的影响。

如果边界条件设置不合理,如施加的力不正确、约束条件不足等,都可能导致错误参数。

针对此类问题,用户应调整边界条件设置,使其符合实际工况。

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ANSYS错误小结1、把体用面分割的时候出现的错误提示:Boolean operation failed.try adjusting the tolerance value on the BTOL commmand to some fraction of the minimum keypoint distance.Model Size (current problem)1.183933e+000,BTOL setting 1.00000e-005,minmum KP T distance 4.308365e-006先在要分割的地方设置一个工作平面,用布尔运算“divided --volume by working plane”进行分割的时候,出现上述错误,主要原因可能是设置的公差太小,当时试了几次都么有成功,最后干脆把体重新建立了一个,又画了一个很大的面,终于成功了。

2、一个常见的代表性错误!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。

Error!Element type 1 is Solid95,which can not be used with the AMES command, meshi ng of area 2 aborted.刚开始学习的人经常出这种错误,这是因为不同单元类型对应不同的划分网格操作。

上面的错误是说单元类型为Solid95(实体类型),不能用AMES命令划分面网格。

3、Meshing of volume 5 has been aborted because of a lack of memory. Closed d own other processes and/or choose a larger element size, then try the VMESH co mmand again. Minimum additional memory required=853MB(by kitty_zoe )说你的内存空间不够,可能因为你的计算单元太多,增加mesh尺寸,减少数量或者增加最小内存设定(ansys10中在customization preferences菜单存储栏可以修改)你划分的网格太细了,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,试一下!4、The input volumes do not meet the conditions required for the VGLU operation . No new entities were created . The VOVLAP operation is a possible alternativeVGLU 是将两个或多个体粘到一块,体之间的交集应该是面,帮助里的说法,This operati on is only valid if the intersections of the input volumes are areas along the bound aries of those volumes。

你粘结glue的体可能有重叠,所以后面提示了一个VOVLAP命令,该命令是将两个或多个体的重叠部分拿出来作为结果VMESH划分时,精度不同,单元数量差别太大了,如果是自由网格划分,那么尝试几个SMRT等级看看。

还有就是单元形状不同,产生的网格质量也差别很大,我前几天才重新划了一次网格,印象很深。

shape,0,3d和shape,1,3d就是划分体时控制单元形状的5、clear 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6、约束不足,产生刚性漂移我觉得这个不一定就是约束不足造成的刚性漂移。

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。

7、AN error occured during sweeping while meshing arer 39.change element sizing parameters(RSIZE,LESIZE,etc).or mesh this arer manually(AMESH or AMAP).then tr y the VSME command again .The VSWE command is ignored.在对一个规则的体进行扫略划分的时候,出现了这个命令,原因是边的尺寸,或者单元的个数设置不合理,对应不上,就行变数核对皆可解决问题!8、Volume 1 cannot be meshed. 208 location(s) found where non-adjacent boundary triangles touch. Geometry configuration may not be valid orsmaller element size definition may be required.提示就是告诉你需要更小的单元可能单元太大的时候出现的网格有有问题,比如狭长的网格,计算的时候集中应力太大9、Shape testing revealed that 3 of the 13 new or modified elementsviolate shape warning limits. To review test results, please see theoutput file or issue the CHECK command.ansys 里面有自己带的网格检查,这说明你的网格尺寸有问题,重新划分10、划分solid45单元的时候出现了structural elements without mid nodes usually pro duce much more accurate results in quad or brick shape提示你采用带中间节点的单元进行计算。

但是solid45六面体网格精度一般够了,不需要理会。

11、Volume11 could not be swept because a source and a target area could not be determined automatically。

please try again...体不符合SWEEP的条件,把体修改成比较规则的形状,可以分割试试12、*** WARNING *** SUPPRESSED MESSAGE CP = 1312.641 TIME= 16:51: 48An error has occurred writing to the file = 12 which may imply a fulldisk.The system I/O error = 28. Please refer to your system documentationon I/O errors.a、I/O 设备口错误,I/O=26,错误,告诉你磁盘已满,让你清理磁盘。

但是实际问题的解决不是这样,是你的磁盘格式不对,将你的磁盘格式从FAT26改称NTFS的就可以了。

因为FAT26格式的要求你的单一文件不能大于4G。

但是我们一旦做瞬态或者是谐相应的时候都很容易超过这个数,所以系统抱错。

b、I/O设备口错误,I/O=9,错误,和上一个一样告诉你磁盘已满,让你清理磁盘。

但是实际问题是由于你的磁盘太碎了造成的,你只要进行磁盘碎片整理就可以了,这个问题就迎刃而解。

13、Topolgical degeneracy detected for ASBA command.Try modifying geometry slig htly or loosening the tolerance(BTOL command).If BTOL is relaxed ,be sure to cha nge the tolerance back to the default after operation公差不能太大,默认公差值是1e-5,每次扩大10倍,即1e-4,1e-3,.....慢慢试试,如果不行,就得检查模型14、计算时候出现:Input/output error on unit=9.Possible full disk ,在一些论坛看到转换磁盘格式ntfs,转换后还是不行,我的ansys11.0安装在D盘,工作目录为E盘(30G 大小),另外输出窗口提示for better cpu performace increase memory by 296mb usi ng -m option一.转化格式(先确定你D盘为fat格式后)点"开始->运行"输入:covert D:/FS:NTFS 就可以将D盘转换成NTFS格式了,不过转换后不可以恢复成FAT32格式了.(本人没有试过!)二.在开始——程序——ansys——ansys product launcher——customization,然后选择m emory下面的方框里面打勾,然后调整work spcae 和data base15、Large negative pivot value ( -8.419662714E-03 ) in Eqn.system. May be bec ause 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。

16、There are 21 small equation solver pivot terms.;SOLID45 wedges are recommended only in regions of relatively lowstress gradients.第一个问题我自己觉得是在建立contact时出现的错误,但自己还没有改正过来;第二个也不知道是什么原因。

还有一个:initial penetration 4.44089×10E-6 was detacted between contact element 53928 and target element 53616;也是建立接触是出现的,也还没有接近。

唉,郁闷中!!answer:第一个问题:There are 21 small equation solver pivot terms.;不是建立接触对的错误,一般是单元形状质量太差(例如有i接近零度的锐角或者接近180度的钝角)造成small equation solver pivot terms第二个问题:SOLID45 wedges are recommended only in regions of relatively low stress gradients.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。

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