{"id":559205,"date":"2024-11-05T18:23:15","date_gmt":"2024-11-05T18:23:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/esdu-930312011\/"},"modified":"2024-11-05T18:23:15","modified_gmt":"2024-11-05T18:23:15","slug":"esdu-930312011","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/esdu\/esdu-930312011\/","title":{"rendered":"ESDU 93031:2011"},"content":{"rendered":"<p>\n\tESDU 93031 directly accounts for the mutual coupling between<br \/>\ninternal pressure and flow conditions, and the stresses and<br \/>\nstructural motion of the pipework. The system must consist of<br \/>\nstraight pipes each of uniform cross-section and material<br \/>\nproperties running full of liquid and each aligned with one of a<br \/>\nset of orthogonal axes. It is assumed that all bends remain right<br \/>\nangles and do not flex. Externally-acting rigid supports can be<br \/>\nmodelled at any location in any or all the three translational and<br \/>\nthree rotational degrees of freedom. The system can have a<br \/>\nreservoir or a centrifugal pump (running at constant speed or<br \/>\nrunning down after trip) at the upstream end, and a reservoir or a<br \/>\nvalve (opening, closing or fixed) at the downstream end. Data on<br \/>\nthe pump characteristics and rotor inertia are required (although<br \/>\ndefault data are included) and allowance may be made for backflow.<br \/>\nThe valve may be closed instantaneously, with a linear area change<br \/>\nwith time, or an area\/time closure curve may be input. Output<br \/>\nincludes steady-state values, together with maximum and minimum<br \/>\nvalues and their location, of pressure, velocity, pipe<br \/>\ndisplacement, axial and shear forces in the walls, and torsional<br \/>\nand bending moments in the walls; the time variation of user-chosen<br \/>\nvariables at selected locations over the run time can also be<br \/>\nprovided. Criteria by which it can be established whether<br \/>\nstructural coupling is important are defined and their use<br \/>\ndiscussed. The program is provided as an executable file and within<br \/>\nESDUview shell that prompts for all the input data and provides<br \/>\ncontext-sensitive help facilities.\n\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Pipeline Vibrations. Computer Program for the Prediction of Fluid Transients in Flexible, Unbranched Three-Dimensional Piping Systems<\/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>2011-06<\/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-559205","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\/559205","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=559205"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=559205"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=559205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}