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cad 图形导入ANSYS中的步骤

2013-05-19 12:46阅读:
cad 图形导入ANSYS中的步骤
1、一般步骤
1)绘制好CAD图形,输出.SAT格式文件。
2)打开ANSYS文件,输入.SAT格式文件。

2、若CAD图形仅为线段组成,则如何输出.SAT格式文件。
2010版本CAD仅支持面域、实体或 ShapeManager 体的对象输出,对于线段则无法输出,需使用boundary命令形成面域,该面域性状可谓矩形,也可为异性。
CAD对需要生成面域的原始线段是有较高要求的,一般用矩形命令绘制的四边形才能形成面域。这时,在CAD中,我一般按如下步骤操作:
1)在CAD中建立不同图层,而且为需要生成面域的线段单独建立一个图层;
2)按不同图层建立完整的分析模型,打开面域图层,在整个模型上使用矩形命令临摹出很多矩形,便于后续生成我想要的面域。
3)关闭其他图层,打开面域图层,输出SAT文件。

3、打开ANSYS
FINISH ! Make sure we are at BEGIN level
/CLEAR,NOSTART ! Clear model since no SAVE found
~SATIN,zhuangtype1,sat,'..\cad picture\',SOLIDS,0
AOVLAP,ALL

4、导入失败案例解决方法
之前在ANSYS 14.5中曾成功导入二维面和线,使用的命令为:~SATIN,zhuangtype1,sat,'..\cad picture\',SOLIDS,0。之后安装了 ANSYS 16.0,使用同样的命令则无法成功导入。查看HELP文件,发现将命令改为SATIN,zhuangtype1,sat,'..\cad picture\',ALL,0即可成功。原因是需正确设置导入对象的类型,如SOLIDS、SURFACES、
WIREFRAME或ALL,当无法确认导入对象类型时,选ALL较为保险。

附件:
~SATIN
~SATIN, Name, Extension, Path, Entity, FMT, NOCL, NOAN
Transfers a .SAT file into the ANSYS program.
CAD Import
MP ME ST PR PRN <> EM DY PP EME MFS

Name
The name of a valid .SAT file, created with a supported version of ACIS. The first character of the file name must be an alphanumeric. Special characters such as & - and * and spaces are not permitted in the part name. See File Names in the Command Reference for more information about ANSYS file naming conventions.
Extension
The extension for the file. The default extension is .sat.
Path
The path name of the directory in which the file resides enclosed in single quotes. The default path name is the current working directory.
Entity
Entity to be imported.
SOLIDS
Solids only, imported as ANSYS volumes (Not implemented, imports All).
SURFACES
Surfaces only, imported as ANSYS areas (Not implemented, imports All).
WIREFRAME
Wireframe only, imported as ANSYS lines (Not implemented, imports All).
ALL
All entities. Use this option when the file contains different types of entities.

FMT
The format in which ANSYS will store the model.
0
Neutral format (default). Defeaturing after import is restricted.
1
Solid format; this allows defeaturing after import.


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