{"id":394695,"date":"2024-11-21T09:09:12","date_gmt":"2024-11-21T09:09:12","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/shared-topology-not-behaving-as-expected\/"},"modified":"2024-11-21T09:09:12","modified_gmt":"2024-11-21T09:09:12","slug":"shared-topology-not-behaving-as-expected","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/shared-topology-not-behaving-as-expected\/","title":{"rendered":"Shared topology not behaving as expected"},"content":{"rendered":"<p>&lt;p&gt;Greetings,&lt;\/p&gt;&lt;p&gt;I am model&lt;span style=&#8221;font-size: 14pt;&#8221;&gt;ling a&lt;\/span&gt;&lt;span style=&#8221;font-size: 14pt;&#8221;&gt;&nbsp;2D gear mes&lt;\/span&gt;&lt;span style=&#8221;font-size: 14pt;&#8221;&gt;hing process. In order to get uniform mesh for all the teeth, I created the geometry for a single tooth and then copied it using circular pattern in Spaceclaim. Each gear is now consisted of as many identical 2D surfaces as its number of teeth. The common edges between the 2D surfaces have shared topology, which is also displayed in Mechanical (see picture below). The mesh also seems to respect the share topology constraint.&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 14pt;&#8221;&gt;However, when running the simulation, the teeth seem to be separating from each other (see picture below). Of course, this is absurd and should not had happened since shared topology is active.&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 14pt;&#8221;&gt;Any ideas on how to tackle this?&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 14pt;&#8221;&gt;Thank you in advance!&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/21-11-2024-1732179971-mceclip2.png\" \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/21-11-2024-1732180079-mceclip3.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394695","topic","type-topic","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=\"Greetings,I am modelling a 2D gear meshing process. 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