{"id":28310,"date":"2017-10-30T13:07:53","date_gmt":"2017-10-30T13:07:53","guid":{"rendered":"\/forum\/forums\/topic\/convert-multibody-cad-import-into-parts-for-improved-contact-joint-creation\/"},"modified":"2017-10-30T13:07:53","modified_gmt":"2017-10-30T13:07:53","slug":"convert-multibody-cad-import-into-parts-for-improved-contact-joint-creation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convert-multibody-cad-import-into-parts-for-improved-contact-joint-creation\/","title":{"rendered":"Convert Multibody CAD import into Parts for improved Contact\/Joint creation"},"content":{"rendered":"<p>I use NX11 to prepare geometry for import into ANSYS Mechanical. The original CAD files are an assembly, but the Best Practice in NX is to create a new top level file and link only the bodies from the assembly that are needed in the analysis. When that one file&nbsp;with multiple solid bodies is brought into ANSYS using the NX-ANSYS geometry interface, a single multibody part is created, though the solids usually represent separate parts. This causes a problem when creating contacts or joints because the Body Views can&#8217;t show two different parts for the Contact and Target side because there is only one part in the model. In the scissors mechanism example below, two faces that bond&nbsp;a journal bearing to the arm have a bonded contact defined. Note how the Body View on the right side is not very useful.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/3e825b35-df61-45f5-9693-a81101684b62\/0b07a73e-9e81-40f9-bb06-a81c00db0919_nx-multibody.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>I recommend after importing the NX geometry, to Edit in DesignModeler, then use the Explode Part feature to convert 1 part with 30 bodies into 30 parts with 30 bodies.&nbsp; Then in Mechanical, that same contact definition (shown below) now has very useful Body Views.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/3e825b35-df61-45f5-9693-a81101684b62\/6802ce04-c56d-4566-a9c4-a81c00db216a_nx-mb3.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-28310","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I use NX11 to prepare geometry for import into ANSYS Mechanical. 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