{"id":559338,"date":"2024-11-05T18:23:39","date_gmt":"2024-11-05T18:23:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/esdu-950232010\/"},"modified":"2024-11-05T18:23:39","modified_gmt":"2024-11-05T18:23:39","slug":"esdu-950232010","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/esdu\/esdu-950232010\/","title":{"rendered":"ESDU 95023:2010"},"content":{"rendered":"<p><strong>INTRODUCTION<\/strong><\/p>\n<p>ESDUpac A9523 is a FORTRAN 77 computer program for determining<br \/>\nthe response to imbalance and the onset of oil-whip instability of<br \/>\na simple flexible rotor (see Section 1.3) supported in cylindrical<br \/>\naxial groove hydrodynamic journal bearings.<\/p>\n<p>The program is able to determine the out-of-balance response of<br \/>\nthe rotor for either constant rotational speed or constant<br \/>\nacceleration with or without speed dependent external loading. A<br \/>\ncomplete working cycle of the rotor consisting of a run-up to<br \/>\noperational speed, followed by a period of constant speed and then<br \/>\na coast-down can be simulated. During a simulation, selected<br \/>\nparameters, such as deflections and bearing forces, can be recorded<br \/>\nin a form suitable for plotting.<\/p>\n<p>For comparison with the dynamic response, the program also<br \/>\nallows the steady-state imbalance response and the nominal<br \/>\nthreshold speed for oil-whip instability to be determined.<\/p>\n<p>The program will be of use in assessing the suitability of<br \/>\ncylindrical axial groove journal bearings for supporting a rotor<br \/>\nand for determining the effect of making design changes to the<br \/>\nbearings or the rotor<sup>\u2020<\/sup>. The program will also be of use<br \/>\nin interpreting measurements made on operating rotor systems when<br \/>\ntrouble shooting, for example.<\/p>\n<p><sup>\u2020<\/sup> ESDUpacs A9305 and A9306 are computer programs for<br \/>\ndesigning axial groove journal bearings. The use of these programs<br \/>\nis explained in ESDU 93005 and ESDU 93006 (see References 1 and 2).<br \/>\nThe background to the design methods used can be found in ESDU<br \/>\n84031, ESDU 85028 and ESDU 86008 (see References 3, 4 and 5).<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Dynamics of a Simple Flexible Rotor Supported in Axial Groove Hydrodynamic Journal Bearings (Guide to Use of Computer Program A9523)<\/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>2010-05<\/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-559338","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\/559338","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=559338"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=559338"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=559338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}