{"id":235843,"date":"2022-09-20T23:03:07","date_gmt":"2022-09-20T23:03:07","guid":{"rendered":"\/forum\/forums\/topic\/error-in-mechanical-spurious-stress-results-from-geometric-parametric-variation\/"},"modified":"2022-09-20T23:03:07","modified_gmt":"2022-09-20T23:03:07","slug":"error-in-mechanical-spurious-stress-results-from-geometric-parametric-variation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/error-in-mechanical-spurious-stress-results-from-geometric-parametric-variation\/","title":{"rendered":"Error in Mechanical- Spurious stress results from geometric parametric variation"},"content":{"rendered":"

Hello,<\/p>\n

I was running stress analysis in Ansys Mechanical. For running multiple cases I created a parametric variation. I am using the Nissan Leaf motor model (shown below) I obtained from the Ansys learning hub. The thickness of the I and V shape magnets are the parameters. I am considering stresses only on the hole edges. <\/p>\n

<\/p>\n

Based on a response surface based DoE, only three designs were successfully evaluated. For the three design points which were successfully evaluated I manually ran the stress analysis for those cases. However, I observed that the results were different from the DoE based stress. <\/p>\n

<\/p>\n

I have also checked the case where stress is checked for the entire rotor body. However, I observed that the DoE based iterations gave much higher stress values than the ones I obtained with manual iterations for the same design points. In order to further check this, I took the rotational velocity as a parameter instead of the width of the magnets. In this case the DoE based results matched with the manually checked results. Am I making a mistake here? Is it feasible to perform a geometric parametric study in Ansys Mechanical?<\/p>\n

Thank you.<\/p>\n","protected":false},"template":"","class_list":["post-235843","topic","type-topic","status-closed","hentry"],"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\n\t\t\n\t\t\n\t\t