{"id":35328,"date":"2019-05-14T09:24:40","date_gmt":"2019-05-14T09:24:40","guid":{"rendered":"\/forum\/forums\/topic\/point-mass-which-mass-moments-of-inertia\/"},"modified":"2019-05-14T09:24:40","modified_gmt":"2019-05-14T09:24:40","slug":"point-mass-which-mass-moments-of-inertia","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/point-mass-which-mass-moments-of-inertia\/","title":{"rendered":"Point Mass &#8211; Which Mass Moments of Inertia?"},"content":{"rendered":"<p>Hello,&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>which <strong>mass&nbsp;moments of inertia<\/strong> are requested when I add a <em><strong>Point Mass<\/strong><\/em> to my static structural analysis?<\/p>\n<p><\/p>\n<p>Is it the mass moments of inertia<\/p>\n<p><\/p>\n<p>1) taken at the center of mass and aligned with the output coordinate system<\/p>\n<p><\/p>\n<p>OR<\/p>\n<p><\/p>\n<p>2) taken at the output coordinate system?<\/p>\n<p><\/p>\n<p>(for reference:&nbsp;<a href=\"https:\/\/www.cati.com\/blog\/2017\/03\/demystifying-mass-moments-of-inertia-in-solidworks\/\">https:\/\/www.cati.com\/blog\/2017\/03\/demystifying-mass-moments-of-inertia-in-solidworks\/<\/a>)<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>It is certainly not the the principal moments of inertia, because it would need an orientation defined by the principal axes.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Kind regards,<\/p>\n<p><\/p>\n<p>piknockyou<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/d790af61-f895-40c1-91f4-aa4d0097d84d\/6068746c-eb5d-4981-be2a-aa4d009bdf90_mmof.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-35328","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7500"],"_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"],"_btv_view_count":["3223"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["35328"],"_bbp_forum_id":["27791"],"_bbp_engagement":["897","41587"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["85188"],"_bbp_last_active_id":["85188"],"_bbp_last_active_time":["2019-05-14 15:23:33"]},"test":"04d9e8a805def72f86956e64225d4265ef462350"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/35328","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\/35328\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=35328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}