{"id":369972,"date":"2024-06-05T18:26:34","date_gmt":"2024-06-05T18:26:34","guid":{"rendered":"\/forum\/?post_type=topic&#038;p=369972"},"modified":"2024-06-06T00:54:09","modified_gmt":"2024-06-06T00:54:09","slug":"pre-stress-harmonic-analysis-with-a-displacement-harmonic-load","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pre-stress-harmonic-analysis-with-a-displacement-harmonic-load\/","title":{"rendered":"Pre-stress harmonic analysis with a displacement harmonic load"},"content":{"rendered":"<p>As entitled, using Ansys Mechanical I aim to do a pre-stress Harmonic Response analysis using a displacement harmonic load, however, I haven&#8217;t been able to set it up correctly. I tried two approaches, a full harmonic analysis and then one with mode superposition.<\/p>\n<p>In the full analysis, I used a static structural analysis to provide the pre-stress condition, however, the displacement harmonic load is not available.<\/p>\n<p>When using mode superpositon, after the static structural analysis, there&#8217;s a modal analysis, and then the harmonic analysis. The displacement harmonic load is availale, but there&#8217;s an error message saying that this type of load cannot be used when the solution method is set to Mode Superposition, and it&#8217;s not possible to change it to another solution method.<\/p>\n<p>It&#8217;s worth pointing out that in the static analysis, the surface that is subjected to harmonic displacement in the harmonic analysis, is set as a Fixed Support.<\/p>\n<p>Any help wil be appreciated.<\/p>\n<p>Cheers,<\/p>\n<p>Fabi&aacute;n&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-369972","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"As entitled, using Ansys Mechanical I aim to do a pre-stress Harmonic Response analysis using a displacement harmonic load, however, I haven&#039;t been able to set it up correctly. 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