This part of ISO 18312 specifies a method for evaluating the vibration power emitted by machines or pipelines,<\/p>\n
referred to hereinafter as machines, under operational conditions on to supporting structures to which the<\/p>\n
machines are directly connected via bolted joints. This part of ISO 18312 specifies the method for evaluating<\/p>\n
the vibration power components emitted in the six degrees of freedom of a Cartesian coordinate system at<\/p>\n
each joint, i.e. three translations and three rotations. The vibration power is determined by processing the<\/p>\n
signals from force and velocity (or acceleration) transducers mounted on to the bolted joints under operational<\/p>\n
conditions of interest. This method is applicable for machines under the assumption that their vibration can be<\/p>\n
characterized by a stationary random process.<\/p>\n
The components of emitted vibration power in the frequency domain are obtained by computing the<\/p>\n
cross-spectrum of the force and velocity measurement pairs with a given narrow band width at each bolted joint.<\/p>\n
This direct method assumes that the supporting structures are adequately rigid and, hence, it is not applicable<\/p>\n
to cases where the foundation or supporting structures are resilient, which will potentially go into a state of<\/p>\n
resonance within the frequency range of interest. Practical frequency limits of the method are specified in this<\/p>\n
part of ISO 18312.<\/p>\n
This part of ISO 18312 can be used in operational conditions for:<\/p>\n
a) specification of vibration power emission of machines at the (bolted) joints;<\/p>\n
b) identification of vibration power severity;<\/p>\n
c) resolving diagnostics issues;<\/p>\n
d) planning vibration control measures.<\/p>\n","protected":false},"excerpt":{"rendered":"
Mechanical vibration and shock \u2014 Measurement of vibration power flow from machines into connected support structures \u2014 Part 1: Direct method<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ISO<\/b><\/a><\/td>\n 2012-01<\/td>\n 18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":600544,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[272,2634],"product_tag":[],"class_list":{"0":"post-600533","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-160","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/600533","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\/600544"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=600533"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=600533"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=600533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}