{"id":39933,"date":"2020-01-03T20:25:22","date_gmt":"2020-01-03T20:25:22","guid":{"rendered":"\/forum\/forums\/topic\/structural-analysis-of-rotating-disk-mounted-on-shaft\/"},"modified":"2020-01-03T20:25:22","modified_gmt":"2020-01-03T20:25:22","slug":"structural-analysis-of-rotating-disk-mounted-on-shaft","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/structural-analysis-of-rotating-disk-mounted-on-shaft\/","title":{"rendered":"Structural Analysis of rotating Disk mounted on shaft"},"content":{"rendered":"<p>Hello everyone,<\/p>\n<p><\/p>\n<p>I am working on structural analysis of turbine and i have to study the response under rotation, for now i have considered a small disk mounted on shaft supported on two bearings<\/p>\n<p><\/p>\n<ul><\/p>\n<li>Bearings i have provided on edges of steps in the shaft and providing stiffness (K11 &amp; K22 = 1E+06 N\/mm)<\/li>\n<p><\/p>\n<li>At the end faces i have provided remote displacements (only rotation allowed about the longitudinal axis)<\/li>\n<p><\/p>\n<li>and RPM to both bodies i am providing for centrifugal load<\/li>\n<p>\n<\/ul>\n<p><\/p>\n<p>Can anyone check whether i am applying correct boundary conditions means my model is correct or not or it need any changes, model screenshot also attached.<\/p>\n<p><\/p>\n<p>configuration i am working on also attached.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/8ac42327-3efd-4bd9-91af-aae90076728f\/39a5d254-d11f-4fde-a810-ab37015030ce_configuration.jpg?width=690&amp;upscale=false\" alt=\"configuration\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>As per configuration, right end of shaft would be coupled to generator so only rotation about longitudinal axis &amp; rest constrained seems fine but at left end should i allow translations as well.<\/p>\n<p><\/p>\n<p>Also why does it give deflection in all directions when only standard earth gravity is applied although values are very very small? Since under the influence of gravity it should bend only in Y(downward) direction.<\/p>\n<p><\/p>\n<p>&nbsp;Please anyone check the model and suggest if any changes needed<\/p>\n<p><\/p>\n<p>Thanks<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-39933","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["12112"],"_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":["1596"],"_bbp_subscription":["243931"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["39933"],"_bbp_forum_id":["27791"],"_bbp_engagement":["166004","169537"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["101903"],"_bbp_last_active_id":["101903"],"_bbp_last_active_time":["2020-01-03 23:15:46"]},"test":"ankitdv98"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/39933","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\/39933\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=39933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}