psolve#

AnalysisOptions.psolve(lab='', **kwargs)#

Directs the program to perform a partial solution.

Mechanical APDL Command: PSOLVE

Parameters:
labstr

Valid labels defining the solution step. All characters are required:

  • EIGDAMP - Calculates the eigenvalues and eigenvectors using the damped eigensolver. Requires Jobname.FULL from modopt,UNSYM or modopt,DAMP options. Produces JobnameMODE.

  • EIGQRDA - Calculates eigenvalues and eigenvectors using the QR damped eigensolver. Requires Jobname.EMAT from modopt,QRDAMP option. Produces JobnameMODE.

  • EIGEXP - Expands the eigenvector solution. Requires Jobname.ESAV and Jobname.MODE. Produces JobnameRST.

  • EIGLANB - Calculates the eigenvalues and eigenvectors using Block Lanczos. Requires Jobname.EMAT from modopt,LANB option. Produces JobnameMODE.

  • EIGLANPCG - Calculates the eigenvalues and eigenvectors using PCG Lanczos. Requires Jobname.EMAT from modopt,LANPCG option. Produces JobnameMODE.

  • EIGSNODE - Calculates the eigenvalues and eigenvectors using the Supernode method. Requires Jobname.EMAT from modopt,SNODE option. Produces Jobname.MODE. (See the modopt command for more information on the SNODE modal solver.)

  • EIGUNSYM - Calculates the eigenvalues and eigenvectors using the unsymmetric eigensolver. Requires Jobname.EMAT from modopt,UNSYM or modopt,DAMP options. Produces JobnameMODE.

  • ELFORM - Creates the element matrices. Produces Jobname.EMAT and JobnameESAV. If you want to include prestress effects ( pstres,ON) from a previous prestress analysis, the ELFORM option requires the Jobname.EMAT and Jobname.ESAV files generated by that analysis.

Notes

Directs the program to perform a partial solution (that is, one step of an analysis sequence). Predefined analysis types ( antype ) perform a defined subset of these solution steps in a predefined sequence. You can use the partial-solution procedure to repeat a certain step of an analysis or to restart an analysis.

Not all steps are valid for all analysis types. The order of the steps may vary depending on the result you desire. See the Basic Analysis Guide for a description of how to perform partial and predefined solutions.

This command contains some tables and extra information which can be inspected in the original documentation pointed above.

In a cyclic symmetry analysis, psolve,EIGLANB or psolve,EIGLANPCG performs the modal analysis at multiple load steps, one for each nodal-diameter specified via the cycopt command. In addition, the eigenvector solution is expanded at each nodal-diameter solution, eliminating the need for a separate expansion pass ( psolve,EIGEXP).

If Jobname.EMAT is required, run the prior analysis with ematwrite,YES to ensure that a Jobname.EMAT is generated.

Distributed-Memory Parallel (DMP) Restriction Only the EIGLANB, and EIGLANPCG options on this command are supported in a DMP solution.

Warning

This command is archived in the latest version of the software.