{"id":165625,"date":"2023-03-17T09:00:48","date_gmt":"2023-03-17T09:00:48","guid":{"rendered":"\/knowledge\/forums\/topic\/for-harmonic-unbalance-mass-rotordynamic-analysis-in-workbench-mechanical-where-does-rotational-velocity-come-from\/"},"modified":"2023-07-31T12:31:37","modified_gmt":"2023-07-31T12:31:37","slug":"for-harmonic-unbalance-mass-rotordynamic-analysis-in-workbench-mechanical-where-does-rotational-velocity-come-from","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/for-harmonic-unbalance-mass-rotordynamic-analysis-in-workbench-mechanical-where-does-rotational-velocity-come-from\/","title":{"rendered":"For Harmonic Unbalance Mass rotordynamic analysis in Workbench Mechanical, where does rotational velocity come from?"},"content":{"rendered":"<p>The unbalanced force = m*e*omega^2. where m is the unbalance mass,  e is the eccentricity (distance from point to center or &#8216;rotating radius), Omega is the shaft spin speed which is the same as the excitation frequency defined in Analysis Settings after converting it from Hz to rad\/sec<\/p>\n","protected":false},"template":"","class_list":["post-165625","topic","type-topic","status-publish","hentry","topic-tag-2022-r1","topic-tag-mechanical","topic-tag-rotordynamics","topic-tag-structural-dynamics","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["3\/15\/2023 20:20"],"_bbp_forum_id":["27792"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["2128"],"siebel_km_number":["2068489"],"product_version":["2022 R1"],"km_published_date":["2022-08-17T00:00:00.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165625\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=165625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}