{"id":390505,"date":"2024-10-19T23:26:40","date_gmt":"2024-10-19T23:26:40","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/390505\/"},"modified":"2024-10-19T23:26:40","modified_gmt":"2024-10-19T23:26:40","slug":"390505","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/390505\/","title":{"rendered":"Reply To: Mass-spring system does not move properly when the spring is non-linear"},"content":{"rendered":"<p>&lt;p&gt;If I change the spring back to linear, the probe point moves freely, as it should:&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/19-10-2024-1729380155-Figura.jpg\" alt=\"\" width=\"1006\" height=\"406\" \/>&lt;\/p&gt;&lt;p&gt;For the analysis with a non-linear spring, I got the following warnings:&lt;\/p&gt;<\/p>\n<ul>\n<li>One or more MPC or Lagrange Multiplier formulation based contact regions or remote boundary conditions may have conflicts with other applied boundary conditions or other contact or symmetry regions. This may reduce solution accuracy. For MPC based remote points, setting the relaxation method may help eliminate overconstraint. Tip: You may graphically display FE Connections from the Solution Information Object for non-cyclic analysis. Refer to Troubleshooting in the Help System for more details.<\/li>\n<p>&lt;li style=&#8221;font-weight: bold;&#8221;&gt;<strong>Point Mass does not have Rigid behavior and it will be ignored by the Explicit solver during the analysis.<\/strong><\/li>\n<li>Primary Assembly BaseMesh File is not available. You will need to re-mesh to recover the file before re-connecting the mesh.<\/li>\n<li>One or more objects may have lost some scoping attachments during the geometry update. You can identify these tree objects by activating the Scoping Wizard in the Selection Toolbar, or by filtering the tree using the Scoping option set to Partial.<\/li>\n<\/ul>\n<p>&lt;p&gt;I suspect the problem has something to do with the second warning (in bold). Do you have any idea how can I deal with that?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390505","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=\"If I change the spring back to linear, the probe point moves freely, as it should:For the analysis with a non-linear spring, I got the following warnings:One or more MPC or Lagrange Multiplier formulation based contact regions or remote boundary conditions may have conflicts with other applied boundary conditions or other contact or symmetry regions.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/390505\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" 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