{"id":625270,"date":"2024-11-06T00:03:10","date_gmt":"2024-11-06T00:03:10","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-7919-42009\/"},"modified":"2024-11-06T00:03:10","modified_gmt":"2024-11-06T00:03:10","slug":"iso-7919-42009","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-7919-42009\/","title":{"rendered":"ISO 7919-4:2009"},"content":{"rendered":"<p>ISO 7919-4:2009 establishes provisions for evaluating the severity of <i>in-situ<\/i>, broad-band shaft vibration measured radial (i.e. transverse) to the shaft axis at, or close to, the main bearings. These are in terms of<\/p>\n<p>&#8211; vibration under normal steady-state operating conditions;<\/p>\n<p>&#8211; vibration during other (non-steady-state) conditions when transient changes are taking place, including run up or run down, initial loading and load changes;<\/p>\n<p>&#8211; changes in vibration which can occur during normal steady-state operation.<\/p>\n<p>ISO 7919-4:2009 is applicable to heavy-duty gas turbine sets used in electrical and mechanical drive applications, with fluid-film bearings, outputs greater than 3 MW and an operating speed range under load between 3 000 r\/min and 30 000 r\/min. This includes gas turbines coupled to other rotating machinery either directly or through a gearbox. In some cases, ISO 7919-4:2009 is not applicable to the evaluation of the vibration of the coupled equipment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Mechanical vibration \u2014 Evaluation of machine vibration by measurements on rotating shafts \u2014 Part 4: Gas turbine sets with fluid-film bearings<\/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\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2009-10<\/td>\n<td>22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":625282,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[272,450,2634],"product_tag":[],"class_list":{"0":"post-625270","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-160","7":"product_cat-27-040","8":"product_cat-iso","10":"first","11":"instock","12":"sold-individually","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/625270","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:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/625282"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=625270"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=625270"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=625270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}