{"id":38677,"date":"2019-10-31T17:43:02","date_gmt":"2019-10-31T17:43:02","guid":{"rendered":"\/forum\/forums\/topic\/boundary-conditions-to-allow-turbine-blade-to-rotate\/"},"modified":"2019-10-31T17:43:02","modified_gmt":"2019-10-31T17:43:02","slug":"boundary-conditions-to-allow-turbine-blade-to-rotate","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/boundary-conditions-to-allow-turbine-blade-to-rotate\/","title":{"rendered":"Boundary Conditions to Allow Turbine Blade to Rotate"},"content":{"rendered":"<p>I am looking to constrain a section of a jet engine turbine to rotate in one direction without translation occurring. I have created an individual blade first and will use cyclic symmetry later. Guidelines state that connections\/contacts&nbsp;are not allowed&nbsp;so the blade and cone are modelled as one body. I am applying both a drag force and rotational velocity. I keep receiving errors such as &#8216;an internal solution limit was exceeded&#8217; and that matrices may be ill-conditioned<\/p>\n<p><\/p>\n<p>First photo shows individual blade section to be analysed.<\/p>\n<p><\/p>\n<p>&nbsp;<img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/3e825b35-df61-45f5-9693-a81101684b62\/6dafa31e-5c8c-419c-80dd-aaf7017629aa_image1.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/3e825b35-df61-45f5-9693-a81101684b62\/0114a726-fb0f-4150-8795-aaf70176380f_image2.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-38677","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["10855"],"_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"],"_btv_view_count":["1433"],"_bbp_subscription":["244433"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["38677"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","170061"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["97629"],"_bbp_last_active_id":["97629"],"_bbp_last_active_time":["2019-11-02 13:29:11"]},"test":"rswan"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/38677","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\/38677\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=38677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}