{"id":165524,"date":"2022-01-13T16:27:04","date_gmt":"2022-01-13T16:27:04","guid":{"rendered":"\/forum\/forums\/topic\/constrained-rigid-body-still-affected-by-gravity-wb-ls-dyna\/"},"modified":"2022-01-17T16:21:26","modified_gmt":"2022-01-17T16:21:26","slug":"constrained-rigid-body-still-affected-by-gravity-wb-ls-dyna","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/constrained-rigid-body-still-affected-by-gravity-wb-ls-dyna\/","title":{"rendered":"Constrained rigid body still affected by gravity &#8211; WB LS-Dyna"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello everyone,<\/p>\n<p>I&acute;m trying to simulate a impact. As you can see in the pictures the 6 bodies in the bottom are setted as constrained rigid bodies fixed at the 6 DOF but all the body still moves due to gravity including the constrained cubes. The connection between them and the &quot;legs&quot; is bonded. The legs and plate are rigid too but not constrained. The ball is flexible.<\/p>\n<p>Questions:<\/p>\n<p>Is there any tool to join the bodies to the ground like in mechanical ?<\/p>\n<p>Which tool could I use if I do not want to constrain all the body just the inferior part?<\/p>\n<p>Should I use another type of connection apart from bonded between the legs and the coinstrained cubes?<\/p>\n<p>About kinetic energy, constrained rigid bodies are afected by impact energy, in this case, of the ball?<\/p>\n<p>Thanks in advance&iexcl;&iexcl;<span class=\"safeEmoji nativeEmoji\">?<\/span><\/p>\n<p><\/p>\n<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/227\/3THZKM5LFFA5.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/227\/3THZKM5LFFA5.png\" alt=\"image.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-165524","topic","type-topic","status-closed","hentry","topic-tag-gravity-1","topic-tag-LS-DynaSolverExplicitDynamics-1","topic-tag-rigid-body","topic-tag-structural","topic-tag-workbench"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_view_count":["3481"],"_bbp_likes_count":["0","0"],"_bbp_forum_subforum_count":["0"],"_btv_view_count":["798"],"_bbp_subscription":["232206"],"_bbpmt_movedon":["2022-08-02 07:29:07"],"_bbpmt_movedfrom":["153324"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["165524"],"_bbp_forum_id":["27814"],"_bbp_engagement":["13468","213602"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["202764"],"_bbp_last_active_id":["202764"],"_bbp_last_active_time":["2022-01-17 16:21:26"]},"test":"lesliefany-quirozmail-weir"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/165524","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\/165524\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=165524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}