15.11.2012 Views

Mechanical APDL Basic Analysis Guide - Ansys

Mechanical APDL Basic Analysis Guide - Ansys

Mechanical APDL Basic Analysis Guide - Ansys

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

7.4.4. Mapping Results onto a Different Mesh or to a Cut Boundary<br />

Just as the PDEF command (Main Menu> General Postproc> Path Operations> Map onto Path) maps<br />

results onto an arbitrary path in the model, POST1 also has the ability to map results on to an entirely new<br />

mesh or to a portion of a new mesh. This functionality is mainly used in submodeling, where you initially<br />

analyze a coarse mesh, build a finely meshed submodel of a region of interest, and map results data from<br />

the coarse model to the fine submodel.<br />

POST1 offers two options for mapping results to a different mesh:<br />

Command(s):<br />

CBDOF<br />

GUI:<br />

Main Menu> General Postproc> Submodeling> Interpolate DOF<br />

Command(s):<br />

BFINT<br />

GUI:<br />

Main Menu> General Postproc> Submodeling> Interp Body Forc<br />

The CBDOF command maps degree-of-freedom results from the coarse model to the cut boundaries of the<br />

submodel. BFINT maps body force loads (mainly temperatures for a structural analysis) from the coarse<br />

model to the submodel. Both commands require a file of nodes to which results are to be mapped, and<br />

both commands write a file of appropriate load commands. Details about the submodeling technique are<br />

presented in the Advanced <strong>Analysis</strong> Techniques <strong>Guide</strong>.<br />

7.4.5. Creating or Modifying Results Data in the Database<br />

You can do postprocessing without ever producing an ANSYS results file. All you need to do is create an<br />

ANSYS database containing nodes, elements, and property data, and then put your own results into the<br />

database using the following commands:<br />

Command(s): DESOL<br />

GUI: Main Menu> General Postproc> Define/Modify> Elem Results<br />

Command(s): DETAB<br />

GUI: Main Menu> General Postproc> Define/Modify> ElemTabl Data<br />

Command(s): DNSOL<br />

GUI: Main Menu> General Postproc> Define/Modify> Nodal Results<br />

Once the data are defined, you can use almost any postprocessing function: graphics displays, tabular listings,<br />

path operations, etc.<br />

Note<br />

7.4.5. Creating or Modifying Results Data in the Database<br />

Issuing the DNSOL command requires that you have placed the data type (stress/strain) in the<br />

element nodal records. To get around this requirement, use the DESOL command to add a<br />

"dummy" element stress/strain record.<br />

ANSYS performs all load case combinations in the solution coordinate system, and the data resulting from<br />

load case combinations are stored in the solution coordinate system. The resultant data are then transformed<br />

to the active results coordinate system when listed or displayed. Therefore, unless RSYS,SOLU is set (no<br />

Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information<br />

of ANSYS, Inc. and its subsidiaries and affiliates.<br />

181

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!