{"id":35434,"date":"2019-05-18T10:05:09","date_gmt":"2019-05-18T10:05:09","guid":{"rendered":"\/forum\/forums\/topic\/base-excitation-absolute-result\/"},"modified":"2019-05-18T10:05:09","modified_gmt":"2019-05-18T10:05:09","slug":"base-excitation-absolute-result","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/base-excitation-absolute-result\/","title":{"rendered":"Base Excitation Absolute Result?"},"content":{"rendered":"<p>I am solving transient analysis by applying base excitation to a structure there is a function in the acceleration setup that appear when I set it to base excitation called absolute result. This function if I set it to &#8220;No&#8221; the supports get fixed and the body deform about and the stresses are low as well as the deformation. when I set it to &#8220;Yes&#8221; the supports start to move from their places and showing very high stresses about 7300 MPa. I checked a guide for what is meant by absolute result, this is what I found (link at end of the post):<br \/>&#8220;<span style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\">The&nbsp;<\/span><span class=\"guilabel\" style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\"><strong style=\"overflow-wrap: break-word;\">Absolute Result<\/strong><\/span><span style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\">&nbsp;property is set to&nbsp;<\/span><span class=\"guimenuitem\" style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\"><strong style=\"overflow-wrap: break-word;\">Yes<\/strong><\/span><span style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\">&nbsp;by default. As needed, change the value to&nbsp;<\/span><span class=\"guimenuitem\" style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\"><strong style=\"overflow-wrap: break-word;\">No<\/strong><\/span><span style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-size: 16px;\">&nbsp;if you do not want to include enforced motion.&#8221;<\/span><\/span><br \/><span style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-size: 16px;\">I want to understand what is meant by absolute&nbsp;result (enforced motion), and why the stresses are so excessive, I supposed&nbsp;to simulate a load coming&nbsp;from a bump that is damped from tires and suspensions then applied to my chassis at the support point. The acceleration object load is resultant of the suspension (tabular data).<\/span><\/span><\/p>\n<p><a href=\"https:\/\/www.sharcnet.ca\/Software\/Ansys\/17.0\/en-us\/help\/wb_sim\/ds_Acceleration.html\">https:\/\/www.sharcnet.ca\/Software\/Ansys\/17.0\/en-us\/help\/wb_sim\/ds_Acceleration.html<\/a><span style=\"color: #000000; font-family: Tahoma, Arial, Helvetica, sans-serif; font-size: 16px;\"><br \/><\/span><\/p>\n","protected":false},"template":"","class_list":["post-35434","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7606"],"_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":["4026"],"_bbp_subscription":["1076"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["35434"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","1076","164086","181313","199977"],"_bbp_voice_count":["5"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["319153"],"_bbp_last_active_id":["319153"],"_bbp_last_active_time":["2023-11-23 09:30:02"]},"test":"ghost3507"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/35434","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\/35434\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=35434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}