{"id":165179,"date":"2023-03-17T08:59:37","date_gmt":"2023-03-17T08:59:37","guid":{"rendered":"\/knowledge\/forums\/topic\/with-regards-to-topology-optimization-any-tips-for-improving-the-robustness-of-pull-out-direction-response-constraint-it-does-not-appear-to-make-any-difference-in-result\/"},"modified":"2023-07-31T12:30:45","modified_gmt":"2023-07-31T12:30:45","slug":"with-regards-to-topology-optimization-any-tips-for-improving-the-robustness-of-pull-out-direction-response-constraint-it-does-not-appear-to-make-any-difference-in-result","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/with-regards-to-topology-optimization-any-tips-for-improving-the-robustness-of-pull-out-direction-response-constraint-it-does-not-appear-to-make-any-difference-in-result\/","title":{"rendered":"With regards to Topology Optimization, any tips for improving the robustness of &#8220;Pull Out Direction&#8221; Response Constraint? It does not appear to make any difference in result."},"content":{"rendered":"<p>Make sure the Pull Out &#8220;Direction&#8221; is pointing towards the field of elements to be optimized.  Optimizer starts at the origin (either global cys origin or user defined csys origin) and projects in user defined direction.  If code does not see any elements, pull out constraint will have no effect.  This is why starting point (cys) and user direction are very important.<\/p>\n","protected":false},"template":"","class_list":["post-165179","topic","type-topic","status-publish","hentry","topic-tag-4391","topic-tag-analysis-techniques","topic-tag-mechanical","topic-tag-optimization","topic-tag-structural-mechanics"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Make sure the Pull Out &quot;Direction&quot; is pointing towards the field of elements to be optimized. 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