{"id":37421,"date":"2019-08-31T22:10:54","date_gmt":"2019-08-31T22:10:54","guid":{"rendered":"\/forum\/forums\/topic\/lumped-mass-method-in-mdof\/"},"modified":"2019-08-31T22:10:54","modified_gmt":"2019-08-31T22:10:54","slug":"lumped-mass-method-in-mdof","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumped-mass-method-in-mdof\/","title":{"rendered":"Lumped mass method in MDOF"},"content":{"rendered":"<p><span class=\"tlid-translation translation\" lang=\"en\" style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; min-height: 20px; line-height: 28px; font-size: 18px; color: rgba(0, 0, 0, 0.87); white-space: pre-wrap; padding-right: 8px;\"><span class=\"\" style=\"box-sizing: border-box;\" title=\"\">Hello guys,<\/span><\/span><\/p>\n<p><\/p>\n<p><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">&nbsp;<\/span><span class=\"tlid-translation translation\" lang=\"en\" style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; min-height: 20px; line-height: 28px; font-size: 18px; color: rgba(0, 0, 0, 0.87); white-space: pre-wrap; padding-right: 8px;\"><span class=\"\" style=\"box-sizing: border-box;\" title=\"\">I would like to make a modal analysis of a model that has contacts with other substances from many regions.<\/span> <span class=\"\" style=\"box-sizing: border-box;\" title=\"\">In order to improve CPU, I intend to keep the item I want to analyze and connect it with springs and point masses from the connection points.<\/span> <span class=\"\" style=\"box-sizing: border-box;\" title=\"\">However, I do not know how to show the 6-DOF reaction of the material I want to simplify with the springs. For example, when I find the stiffness in the x-direction and connect the spring and point mass to the model I want to analyze, what should I do to show the effect of the stiffnesses in the y,z,rotx,roty,rotz?<\/span> <span class=\"\" style=\"box-sizing: border-box;\" title=\"\">Do you have any suggestions about how to connect springs or another method for a faster analysis? Thank you very much for your help.<\/span><\/span><\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; min-height: 20px; line-height: 28px; font-size: 18px; color: rgba(0, 0, 0, 0.87); white-space: pre-wrap; padding-right: 8px;\"><span class=\"\" style=\"box-sizing: border-box;\" title=\"\">PS: Perhaps there is a method directly adding the stiffness matrix of matter to point mass. I&#8217;d appreciate it if you could brief me on this.<\/span><\/span><\/p>\n","protected":false},"template":"","class_list":["post-37421","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["9599"],"_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":["1200"],"_bbp_subscription":["242531"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["37421"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","168075"],"_bbp_voice_count":["2"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["93333"],"_bbp_last_active_id":["93333"],"_bbp_last_active_time":["2019-09-02 13:28:01"]},"test":"oguzhankose96"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/37421","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\/37421\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=37421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}