{"id":311374,"date":"2023-10-13T09:37:00","date_gmt":"2023-10-13T09:37:00","guid":{"rendered":"\/forum\/forums\/reply\/311374\/"},"modified":"2023-10-13T09:54:19","modified_gmt":"2023-10-13T09:54:19","slug":"311374","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/311374\/","title":{"rendered":"Reply To: Multilayer PCB modal analysis first mode natural frequency related."},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;I think perhaps include some more masses (3 x sensors, and mass of largest electronic components, or circuits) that is missing as this will lower the FE natural freq. By including damping, can also lower the frequencies in FE.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;All the best&lt;\/p&gt;&lt;p&gt;Erik&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-311374","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I think perhaps include some more masses (3 x sensors, and mass of largest electronic components, or circuits) that is missing as this will lower the FE natural freq. By including damping, can also lower the frequencies in FE. 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