{"id":157877,"date":"2022-06-06T09:57:55","date_gmt":"2022-06-06T09:57:55","guid":{"rendered":"\/knowledge\/forums\/topic\/what-causes-a-warning-about-unprocessed-component-while-post-processing-a-cyclic-symmetry-solution-in-mechanical-apdl\/"},"modified":"2022-06-06T09:57:55","modified_gmt":"2022-06-06T09:57:55","slug":"what-causes-a-warning-about-unprocessed-component-while-post-processing-a-cyclic-symmetry-solution-in-mechanical-apdl","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-causes-a-warning-about-unprocessed-component-while-post-processing-a-cyclic-symmetry-solution-in-mechanical-apdl\/","title":{"rendered":"What causes a warning about unprocessed component while post-processing a cyclic symmetry solution in Mechanical APDL?"},"content":{"rendered":"

After \/CYCEXPAND,,OFF (or if no \/CYCEXPAND has been issued), the following warning message is issued (may be PRNSOL, PRESOL or other):
*** WARNING ***
PRNSOL is listing an unprocessed component of a cyclic symmetry
solution. It can combine all appropriate components to produce the
actual nodal solution for sectors 1 through 6 if cyclic expansion
(\/CYCEXPAND) and PowerGraphics (\/GRAPH) are both active. <\/p>\n

Various commands (*GET, *VGET, …) gives you the unprocessed results but not as real and imaginary part but as real values for original and duplicate sector, so if you have n nodes in the sector, you need to get results for both nodes ii and ii+n<\/p>\n

NODE UZ
24 83.275
120 190.35<\/p>\n

To compute expanded results, User need eq.3-2 (Mechanical APDL > Cyclic Symmetry Analysis Guide >Cyclic Symmetry Overview > Postprocessing a Cyclic Symmetry > Using the \/CYCEXPAND Command)<\/p>\n

The amplitude can be retrieve from the unprocessed results AMP = SQRT(UA^2+UB^2). A phase sweep can also be performed (as with CYCPHASE command) by adding a Cyclic Phase angle to both cos and sin terms in eq.3-2.
Extra precaution has to be observed when dealing with non-component results (USUM, SEQV, SINT) or linearized stress, component results need to be obtained with eq.3-2 before computing non-component results: combining non-component results with eq.3-2 for basic and duplicated sector is not correct.<\/p>\n

In addition, and for modal results only, expanded results are normalized with respect to the full mass matrix (N * [M]), while unprocessed results are normalized to the cyclic mass matrix (2 * [M], except if k = 0 or N\/2, where 1 * [M]) (N = number of sectors, [M] = mass matrix of the original sector), so that we have to multiply the above results by SQRT(2\/N) (or SQRT(1\/N) if k = 0 or N\/2).<\/p>\n

With \/CYCEPAND,,ON or within Workbench Mechanical, expanded results can be plotted (Maximum Over Cyclic Phase, Cyclic Phase of Maximum, Cyclic Phase)<\/p>\n","protected":false},"template":"","class_list":["post-157877","topic","type-topic","status-publish","hentry","topic-tag-apdl","topic-tag-unprocessed-component"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t