Hello all. I understand the procedure for static to static structural submodeling in ANSYS Classic and Mechanical. However, is it possible to perform submodeling on random vibration, response spectrum, or harmonic response environments? I haven’t found a good way to do submodeling for random vibration, but such a feature would be value added. I understand that you can load displacements at cut boundaries into a static model from a random vibration rst file, but the cut boundary displacements are not always sufficient without inertial effects. In addition, inertial effects are not always easy to capture in a static submodel if the system is not behaving as a SDOF system or is particularly complex (ie static equivalence is not feasible). Is there a recommended way to perform submodeling for these tricky cases?<\/p>\n
Also, the ANSYS submodeling routine appears to be based off of a displacement scheme, but is not always appropriate particularly if the submodel has a different stiffness from the global model. Is there a way to perform force based submodeling for static, random, response spectrum, and harmonic analysis types? Given that reaction forces in dynamic environments are always positive, manually importing forces does not seem feasible for complex systems without information on relative directionality. <\/p>\n
Any advice would be appreciated. Thanks.<\/span><\/p>\n","protected":false},"template":"","class_list":["post-239524","topic","type-topic","status-closed","hentry","topic-tag-quasi-static-1","topic-tag-apdl","topic-tag-boundary-conditions","topic-tag-mechanical","topic-tag-random-vibration","topic-tag-response-spectrum-1","topic-tag-structures","topic-tag-submodeling","topic-tag-workbench"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["266598","23687"],"_bbp_author_ip":["23.223.149.206"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1652"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["239524"],"_bbp_forum_id":["27791"],"_bbp_engagement":["23687","266598"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["239599"],"_bbp_last_active_id":["239599"],"_bbp_last_active_time":["2022-11-03 13:09:08"]},"test":"jmprendebuffalo-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/239524","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\/239524\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=239524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}