{"id":37984,"date":"2019-09-27T22:03:57","date_gmt":"2019-09-27T22:03:57","guid":{"rendered":"\/forum\/forums\/topic\/sliding-surface-stiffness-need-urgent-help\/"},"modified":"2019-09-27T22:03:57","modified_gmt":"2019-09-27T22:03:57","slug":"sliding-surface-stiffness-need-urgent-help","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/sliding-surface-stiffness-need-urgent-help\/","title":{"rendered":"Sliding surface stiffness (Need urgent help)"},"content":{"rendered":"<p>Hi ,<\/p>\n<p><\/p>\n<p>I have modelled a Linear feed drive system , since the&nbsp;linear roller bearing &nbsp;translates in axial direction The stiffness of the bearings&nbsp;are always directed along the&nbsp;line containing the point of contact of balls . Since these points move as the bearing moves&nbsp;stiffness cant be defined by a longitudinal spring that is only connect to nodes which&nbsp;elongates as bearings moves &nbsp;, the stiffness should be consistent as the system moves . What is the best way to do that in ansys? I see an option in solid works called flat parallel faces .<\/p>\n<p><\/p>\n<p>This picture titled &nbsp;(spring) &nbsp;shows a spring between the bearing the guide , as the bearing moves the spring elongates . I do not want this I want the spring to move as the bearing moves to maintain the same normal stiffness.<\/p>\n","protected":false},"template":"","class_list":["post-37984","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["10162"],"_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":["1685"],"_bbp_subscription":["243319"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["37984"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","168892"],"_bbp_voice_count":["2"],"_bbp_reply_count":["17"],"_bbp_last_reply_id":["95229"],"_bbp_last_active_id":["95229"],"_bbp_last_active_time":["2019-10-01 18:52:24"]},"test":"abdulbasit03"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/37984","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\/37984\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=37984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}