{"id":559150,"date":"2024-11-05T18:23:06","date_gmt":"2024-11-05T18:23:06","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/esdu-930012010\/"},"modified":"2024-11-05T18:23:06","modified_gmt":"2024-11-05T18:23:06","slug":"esdu-930012010","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/esdu\/esdu-930012010\/","title":{"rendered":"ESDU 93001:2010"},"content":{"rendered":"<p><strong>Follower type<\/strong><\/p>\n<p>Cams with roller followers (translating or swinging) can be<br \/>\nanalysed. The algorithm used to calculate the compressive contact<br \/>\nstress at the surface (taken from ESDU 78035, Derivation 1) is<br \/>\nstrictly applicable only to static contacts where no traction<br \/>\nforces act. In the contact zone between a cam and a crowned roller<br \/>\nfollower traction forces (due to friction) may be present. However,<br \/>\nif the roller does not slip, the coefficient of friction is likely<br \/>\nto be very low (less than 0.1) and the values of compressive<br \/>\ncontact stress predicted by the algorithm will be sufficiently<br \/>\naccurate.<\/p>\n<p><strong>Follower motion<\/strong><\/p>\n<p>The method presented in this Item can be used to analyse cams<br \/>\nwith a wide range of profiles. In cam design the relationship<br \/>\nbetween the motion of the cam and the motion of the follower,<br \/>\nduring a dwell-rise-dwell (DRD) or a dwell-return-dwell (DRD)<br \/>\nmotion, is usually governed by a mathematical equation known as a<br \/>\ncam law (see ESDU 82006, Reference 5).<\/p>\n<p>Although the theory (presented in Section 3 of this Item) is<br \/>\ngeneral, in that any mathematical cam law can be specified the<br \/>\ncomputer program contains only six commonly-used cam laws<br \/>\n(identified in Entry 11, Section 7.3.1). If the required cam law<br \/>\nfor a particular motion segment is not included in the current<br \/>\nversion of ESDUpac A9301 then the data can be entered as a motion<br \/>\ndata file. This motion data file must contain values of follower<br \/>\ndisplacement, follower velocity, follower acceleration and follower<br \/>\njerk at intervals of one degree of cam rotation. The required<br \/>\nformat of the file is described in Section 7.3.2 and the reasons<br \/>\nfor specifying motion in this way are explained in Section<br \/>\n4.1.1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Contact Stress in Disc Cams with Roller Followers<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/esdu\/\"><b>ESDU<\/b><\/a><\/td>\n<td>2010-07<\/td>\n<td>NA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":0,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2675],"product_tag":[],"class_list":{"0":"post-559150","1":"product","2":"type-product","3":"status-publish","5":"product_cat-esdu","7":"first","8":"instock","9":"sold-individually","10":"shipping-taxable","11":"purchasable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/559150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=559150"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=559150"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=559150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}