{"id":33345,"date":"2019-02-15T20:35:55","date_gmt":"2019-02-15T20:35:55","guid":{"rendered":"\/forum\/forums\/topic\/mpc-and-freedom-constraint-in-ansys-mechanical\/"},"modified":"2019-02-15T20:35:55","modified_gmt":"2019-02-15T20:35:55","slug":"mpc-and-freedom-constraint-in-ansys-mechanical","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc-and-freedom-constraint-in-ansys-mechanical\/","title":{"rendered":"MPC and freedom constraint in ansys mechanical"},"content":{"rendered":"

While running a symmetry model, design based on the discussion here<\/a>, in ANSYS mechanical I am getting the following two errors;<\/p>\n

<\/p>\n

“One or more MPC 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. 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.”<\/p>\n

<\/p>\n

Within my model I do not have any contact region, instead I have used the face split to model the support and the loading area. I might have issue with the remote boundary condition or with the symmetry, as suggested in the error. The symmetry images are shown as following;<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

\"\"<\/p>\n

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The boundary conditions which I applied are ; (i) top load is -0.5mm in y direction and all other components and rotations were zero. (ii) the bottom support have zero in y-component and free for other components and rotations. <\/span><\/p>\n

<\/p>\n

\"\"<\/span><\/p>\n

<\/p>\n

In addition, within the solver output, I have number of following messages with different node numbers (ranging between 22945 and 23142)<\/span><\/p>\n

<\/p>\n

“Specified degree of freedom constraint UZ at unused node 22945”<\/span><\/p>\n

<\/p>\n

I am not sure if both of the above mentioned errors are related or different. It would be helpful if someone may guide me on solving these issues. <\/span><\/p>\n

<\/p>\n

Thank you<\/span><\/p>\n","protected":false},"template":"","class_list":["post-33345","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["5517"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["2447"],"_bbp_subscription":["235427"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["33345"],"_bbp_forum_id":["27791"],"_bbp_engagement":["897","154928"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["78429"],"_bbp_last_active_id":["78429"],"_bbp_last_active_time":["2019-02-24 21:17:24"]},"test":"jackhero"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/33345","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\/33345\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=33345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}