Hello,<\/p>\n
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I am trying to evaluate the effect of torquing a bolt on a clamp assembly. I can’t share the whole simulation due to confidentiality. I have a base into which are tapped two holes. The clamp begins flush to one side of the base, with the other side raised a few mm. My bolts on either side have bonded contacts with the base, and frictional contacts with the clamp itself.<\/p>\n
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I would like to specify a bolt pretension on each bolt. I’ve been looking at tutorials on how to use pretension and I understand that ANSYS defaults to applying the pretension load at some point on the cylindrical face of the bolt. Since the contact between that cylindrical face and the base is bonded, this results on the bolt pretension pulling in opposite directions in the middle of the bonded contact. I am looking for a solution, and with my limited knowledge of ANSYS have two ideas.<\/p>\n
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The first, and ideal solution would be to change the point at which the bolt is split by the pretension so that it pulls in opposite directions above the bonded contact. This seems like the most accurate way to model the problem. I have included screenshots of where the pretension currently splits, and where I would like it to on my custom coordinate system.<\/p>\n
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The second would be to delete the bonded contact and maybe include a fixed support at the bottom of the bolt, but that definitely doesn’t seem as legit as the first method.<\/p>\n
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Does anyone know how to change the origin of my pretension? I have found videos on youtube that mention that possibility but I haven’t been able to find a description of how to actually do it.<\/p>\n
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Thanks for your time<\/p>\n","protected":false},"template":"","class_list":["post-42365","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["14545"],"_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"],"_btv_view_count":["2129"],"_bbp_subscription":["248735"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["42365"],"_bbp_forum_id":["27791"],"_bbp_engagement":["79","240","174520"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["109929"],"_bbp_last_active_id":["109929"],"_bbp_last_active_time":["2020-04-02 15:16:26"]},"test":"calebniles"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/42365","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\/42365\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=42365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}