I think CECYC is used in the context of a model in which the cyclic sector has already been duplicated (e.g., via CYCLIC).

The command allows manual specification of the harmonic index that calculated mode shapes will be limited to. Constraint equations are more general than coupled degree of freedom sets. After reviewing the Help section below, I think the implication is that this forces the calculated modes (presumably you're doing a modal analysis) to only be those having harmonic index = 0.Īnother legacy command (found in the Help Feature Archive) associated with the older, now undocumented cyclic symmetry analysis method we used to have is CECYC, which writes constraint equations between corresponding pairs of node on the surfaces. This forces all three components of displacement (radial, circumferential, and axial) on the surfaces to be identical at corresponding locations on those surfaces. You could add some robustness to the above script but reading through the lines with string functions but, as written, it just grabs the specific substring from the output directly.CPCYC defines coupled degree of freedom sets between corresponding pairs of nodes on the boundaries straddling the periodic sector.

Release 2020 R1 Southpointe January 2020 2600 ANSYS Drive Canonsburg, PA 15317 ANSYS, Inc. TimeNext = valchr(strsub(timeListing(43,9),1,10)) ANSYS Mechanical APDL Cyclic Symmetry Analysis Guide Original Title: ANSYSMechanicalAPDLCyclicSymmetryAnalysisGuide Uploaded by V Caf Copyright: All Rights Reserved Flag for inappropriate content of 136 Cyclic Symmetry Analysis Guide ANSYS, Inc. This is probably the best solution but may be a little difficult to set up and validate correctly.Įdit: Here's the code for getting the next time step (there is not a *get command): /solu stress relaxation, and cyclic behavior to accurately predict the fatigue life. If you wanted to use times instead of loadstep numbers, it would be a few extra lines to get the next time value but it is possible.Īlternatively, you could use a table, which allows the BFE command to apply values based on the time of the current loadstep. 20 APDL (Ansys Parametric Design Language) Commands every ANSYS Mechanical. Thermal, Structural, Acoustic, Piezoelectric, Electrostatic and Circuit Coupled Electromagnetics are just a few examples of what can be simulated. cnt = cnt + 1 ! Tracks loadstep number. The Ansys finite element solvers enable a breadth and depth of capabilities unmatched by anyone in the world of computer-aided simulation.

It's a little convoluted to get the next *time* to be run but you could easily apply it to specific load steps by using a counter in your command snippet to track the loadstep. However, you can't do ranges you have options like 'first,' 'last,' 'all,' or by number, which lets you specify a loadstep.Īlternatively, if you like, you can make one command snippet that runs before all load steps and put a *if statement inside that checks the next time to be solved and then applies your commands if that time is within your range. In the command snippets in Workbench, you have the option of specifying which time points/loadsteps the command snippet will run before.

Ansys apdl cyclic command