{"id":360640,"date":"2024-04-05T09:58:33","date_gmt":"2024-04-05T09:58:33","guid":{"rendered":"\/forum\/forums\/reply\/360640\/"},"modified":"2024-04-05T10:00:44","modified_gmt":"2024-04-05T10:00:44","slug":"360640","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/360640\/","title":{"rendered":"Reply To: Solver Pivot Error"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Hi&lt;\/p&gt;&lt;p&gt;It sounds like something is not connected &ndash; run a modal analysis with the structure and the fixed support (no loads are needed of course).&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;If all is ok we should see non zero frequencies only (0 Hz means rigid body mode which is that something is not connected).&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Search also the forum and internet for more info on pivot ratios and errors.&lt;\/p&gt;&lt;p&gt;https:\/\/www.google.com\/search?q=solver+pivot+error+and+convergence+errors+and+ansys&amp;sca_esv=469084b56d0a10d6&amp;sca_upv=1&amp;rlz=1C1GCEA_enDE1032DE1032&amp;sxsrf=ACQVn0-w_Nl86Z1XWkx5qERg4RHJrze-HQ%3A1712310854191&amp;ei=RsoPZsaiC9fZhbIP1cypIA&amp;ved=0ahUKEwjG3dWB56qFAxXXbEEAHVVmCgQQ4dUDCBA&amp;uact=5&amp;oq=solver+pivot+error+and+convergence+errors+and+ansys&amp;gs_lp=Egxnd3Mtd2l6LXNlcnAiM3NvbHZlciBwaXZvdCBlcnJvciBhbmQgY29udmVyZ2VuY2UgZXJyb3JzIGFuZCBhbnN5czIIEAAYgAQYogQyCBAAGIAEGKIEMggQABiABBiiBEj8PFCcB1i2OXAAeAGQAQCYAXagAfEMqgEEMTYuNLgBA8gBAPgBAZgCEaACowrCAgQQABhHwgIHECMYsAIYJ5gDAIgGAZAGCJIHBDE0LjOgB-g4&amp;sclient=gws-wiz-serp&lt;\/p&gt;&lt;p&gt;All the best&lt;\/p&gt;&lt;p&gt;&nbsp;&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-360640","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/360640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/360640\/revisions"}],"predecessor-version":[{"id":360642,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/360640\/revisions\/360642"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=360640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}