{"id":279369,"date":"2023-04-13T22:26:44","date_gmt":"2023-04-13T22:26:44","guid":{"rendered":"\/forum\/forums\/topic\/changing-units-in-mechanical-alters-results\/"},"modified":"2023-04-13T22:26:44","modified_gmt":"2023-04-13T22:26:44","slug":"changing-units-in-mechanical-alters-results","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/changing-units-in-mechanical-alters-results\/","title":{"rendered":"Changing units in &#8220;Mechanical&#8221; alters results"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I am running a static structural simulation on a 2D model of an upper airway in which spring connections represent the passive behavior of muscles and I am applying a negative pressure on the airway walls. I have noticed that when the units change in &#8220;Mechanical&#8221; and I solve the model again, the results I obtain are different. From what I can see, the issue seems to be that the spring connections are not working properly anymore.&nbsp;<\/p>\n<p>For more clarity, when I created the geometry in DesignModeler, I used &#8220;millimeters&#8221;. In Mechanical, when the units are in &#8220;millimeters&#8221; the solution is correct but when they change to &#8220;meters&#8221; the solution gives wrong results. Is there a reason for this to happen? Is it expected?&nbsp;&nbsp;<\/p>\n<p>Best,&nbsp;<\/p>\n<p>Diane&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-279369","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["282127","240","18229"],"_bbp_author_ip":["23.223.149.174"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["2512"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["279369"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","18229","282127"],"_bbp_voice_count":["3"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["279381"],"_bbp_last_active_id":["279381"],"_bbp_last_active_time":["2023-04-13 23:54:07"]},"test":"dianesalman10gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/279369","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\/279369\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=279369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}