{"id":386953,"date":"2024-09-25T11:16:28","date_gmt":"2024-09-25T11:16:28","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/static-structural-vs-transient-strutural-contact-stress\/"},"modified":"2024-10-06T11:25:10","modified_gmt":"2024-10-06T11:25:10","slug":"static-structural-vs-transient-strutural-contact-stress","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/static-structural-vs-transient-strutural-contact-stress\/","title":{"rendered":"Static Structural vs Transient Strutural – Contact stress"},"content":{"rendered":"

<p><p><p>Hello, I am seeing weird\/maybe interesting stuff. I might be missing on the basics. So I have a part of ball bearing with Symmetry B.C. OR – fixed and IR – Rotating and force applied on its bottom surface.<\/p><\/p><\/p><\/p>\n

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  1. STATIC STRUCTURAL – With Frictionless surface, I am getting an error (maybe rigid body condtion\/unconstrained) but when changed to NO Separation, I can see the deformation…like I can see the animation how the ball is moving\/deforming.<\/li>\n<\/ol>\n

    <p><p><p>2. I have been doing the same thing in Transient Structural, But I do not see any motion, the deformation\/stress is constant throughout the 10 s. <\/p><p> <\/p><p>My target is too get nice Hertzian contact region between Ball and Race as the IR rotates around the bearing axis with the surfaces in contact being frictionless allowing for Separation and Sliding.<\/p><p> <\/p><p>This will then be taken ahead to perform FSI (Mech-fluent-System Coupling). So i guess, I might have to use Transient solution, as the parameters (pressure, viscosity) might not be be steady. Please help me out with some tips. Thank you!!!<\/p><p> <\/p><p> <\/p><p><\/p><\/p><p> <\/p><p>In addition, I have tried the revolute joint as suggested below. that also not working. Symmetry B.C. are applied.<\/p><p><\/p><p> <\/p><p><\/p><p> <\/p><p> <\/p><p> <\/p><p> <\/p><\/p><\/p>\n","protected":false},"template":"","class_list":["post-386953","topic","type-topic","status-publish","hentry","topic-tag-ball-bearing-1","topic-tag-bearing","topic-tag-kinematic","topic-tag-revolute-joint","topic-tag-static-structural","topic-tag-structural-mechanics","topic-tag-transient-structural"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["449247","3796"],"_bbp_author_ip":["130.83.29.197"],"_btv_view_count":["407"],"_bbp_topic_status":["unanswered"],"_edit_last":["449247"],"_bbp_revision_log":["a:2:{i:387104;a:2:{s:6:\"author\";i:449247;s:6:\"reason\";s:15:\"added new query\";}i:388284;a:2:{s:6:\"author\";i:449247;s:6:\"reason\";s:0:\"\";}}"],"_bbp_topic_id":["386953"],"_bbp_forum_id":["27796"],"_bbp_engagement":["3796","449247"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["388311"],"_bbp_last_active_id":["388311"],"_bbp_last_active_time":["2024-10-07 06:27:54"]},"test":"ashishkumar-guptatu-darmstadt-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/386953","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":2,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/386953\/revisions"}],"predecessor-version":[{"id":388284,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/386953\/revisions\/388284"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=386953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}