Release 11.0 Documentation for ANSYS
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You can step manually through the three-step solution sequence for a GSP analysis. To do so, follow this procedure:
Specify options for the first load step. This will yield an approximate iron-only solution. To do so, set VALUE = 1 for the MAGOPT command or choose Main Menu> Solution> Load Step Opts> Magnetics> Options Only> GSP Method.
| Command(s): | MAGOPT |
| GUI: | Main Menu> Solution> Load Step Opts> Magnetics> Options Only> GSP Method |
Set the convergence criteria using the CNVTOL command or its GUI equivalent.
Specify that results are not saved, using either of the following:
| Command(s): | OUTRES,ALL,NONE |
| GUI: | Main Menu> Solution> Load Step Opts> Output Ctrls> DB/Results File |
Set the full Newton-Raphson option with adaptive descent. To do so, use either method shown below:
| Command(s): | NROPT |
| GUI: | Main Menu> Solution> Analysis Type> Analysis Options |
Write the load data to a load step file, via one of these methods:
| Command(s): | LSWRITE or SOLVE |
| GUI: | Main Menu> Solution> Load Step Opts> Write LS File Main Menu> Solution> Solve |
Specify load step options for the second load step (which produces an approximate air-only solution). This time, set the VALUE field to 2 on the MAGOPT command or its GUI equivalent and again, specify one substep.
Use the LSWRITE command or the Write LS File menu option to write load data to a load step, as discussed in step 2 above.
Specify load step options for the third load step (which gives the final solution). To do so, set VALUE = 3 on the MAGOPT command or its GUI equivalent.
Store the final results using the OUTRES,ALL,LAST command or its GUI equivalent.
Start calculating the solution by using one of the following:
| Command(s): | LSSOLVE or SOLVE |
| GUI: | Main Menu> Solution> Solve> From LS Files Main Menu> Solution> Solve |
Once you have solved the model, review the results as described for the RSP method.
An example command sequence for a nonlinear GSP method static analysis follows:
/solu magopt,1 ! Partial solution in iron cnvtol,flux,,le-3 ! Set convergence criteria outres,all,none ! Do not store results nropt,full,,on ! Full Newton-Raphson, adaptive descent solve ! Solve magopt,2 ! Partial solution in air solve ! Solve magopt,3 ! Final solution outres,all,last ! Store converged solution solve