{"id":387890,"date":"2024-10-03T02:05:51","date_gmt":"2024-10-03T02:05:51","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/baja-chassis-not-solving\/"},"modified":"2024-10-03T02:05:51","modified_gmt":"2024-10-03T02:05:51","slug":"baja-chassis-not-solving","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/baja-chassis-not-solving\/","title":{"rendered":"BAJA Chassis not Solving"},"content":{"rendered":"<p>&lt;p&gt;Hello, I have a chassis that&#8217;s not able to solve. Here are the errors I&#8217;ve encountered.&lt;\/p&gt;&lt;div&gt;&nbsp;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.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;The maximum contact stiffness is too big. This may affect the accuracy of the results. You may need to scale the force unit in the model.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;An overlap is detected between one or more contact regions and boundary condition(s) applied to your model. Hence Augmented Lagrange formulation is used as the Program Controlled option for those contacts.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Some of the elements on the problematic bodies can&#8217;t meet the specified target metrics. Please check the elements and try changing the mesh size settings to achieve the needed mesh quality.&lt;\/div&gt;&lt;p&gt;I&#8217;ve ran my model on Discovery and fixed any and all of the gaps and wrong geometry it can fix in the Repair ribbon tab. It did make a successful mesh but It couldn&#8217;t solve it. Any tips? Below are pictures of my applied loads.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/03-10-2024-1727921080-mceclip0.png\" width=\"871\" height=\"537\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/03-10-2024-1727921123-mceclip1.png\" width=\"868\" height=\"538\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-387890","topic","type-topic","status-publish","hentry","topic-tag-baja-sae-1","topic-tag-SAEChassis-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["2607:f010:2e9:47:c8fb:e36e:b1a4:c7db"],"_btv_view_count":["7798"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["37673","590946"],"_bbp_topic_id":["387890"],"_bbp_forum_id":["27786"],"_bbp_engagement":["37673","451102","590946"],"_bbp_voice_count":["3"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["440601"],"_bbp_last_active_id":["440601"],"_bbp_last_active_time":["2025-09-02 17:12:05"]},"test":"osirizdg-ucla-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/387890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/387890\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=387890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}