{"id":32780,"date":"2019-01-22T07:51:12","date_gmt":"2019-01-22T07:51:12","guid":{"rendered":"\/forum\/forums\/topic\/how-to-simulate-slip-between-components-due-to-rotational-speed\/"},"modified":"2019-01-22T07:51:12","modified_gmt":"2019-01-22T07:51:12","slug":"how-to-simulate-slip-between-components-due-to-rotational-speed","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-simulate-slip-between-components-due-to-rotational-speed\/","title":{"rendered":"How to simulate slip between components due to rotational speed"},"content":{"rendered":"

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Hi, <\/p>\n

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Above image represent what I’m going to simulate. Shaft (gray) consists of two other components. The component in “Green” act as a sleeve which is used to assemble the “dark gray” part to the shaft using interference fit. <\/p>\n

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Whole assembly rotates at around 150,000 rpm.<\/p>\n

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I need to find the optimum interference fit where there will be no slip occurs between the shaft and other components. All the contact surfaces are given frictional contacts.<\/p>\n

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How can I simulate the following?<\/p>\n

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Here’s what I did up-to now.<\/p>\n

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My idea is to rotate only the “shaft” which will force the other components to rotate if the interference is sufficient. As far as I know when using “static structural” simulation the rotational speed is applied as a inertia force. So using static structural will not simulate the physical condition correctly. <\/p>\n

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So I selected transient structural, but my issue is if I give “rotational speed” boundary condition will the effect only be applied as inertia load?
If so how can I specify the boundary condition where the shaft will physically rotate?<\/p>\n

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Furthermore, does the geometry have to be analysed in full 3d form? or can I use simplification such as cyclic symmetry or axi-symmetry? <\/p>\n

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Also since the rotational speed is very high what is the best method to give the time step settings to achieve convergence? <\/p>\n

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Thank you.<\/p>\n

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Best Regards,<\/p>\n

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Rashiga<\/p>\n

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 <\/p>\n","protected":false},"template":"","class_list":["post-32780","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["4952"],"_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":["1","1","1","1","1"],"_btv_view_count":["1410"],"_bbp_subscription":["236185"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["32780"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","156936"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["76414"],"_bbp_last_active_id":["76414"],"_bbp_last_active_time":["2019-01-30 15:10:17"]},"test":"rashi"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/32780","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\/32780\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=32780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}