{"product_id":"procedure-for-separating-noise-sources-jeffrey-hilton-miles-9781287236603","title":"Procedure for Separating Noise Sources in Measurements of Turbofan Engine Core Noise","description":"\u003cbr\u003e The study of core noise from turbofan engines has become more important as noise from other sources like the fan and jet have been reduced. A multiple microphone and acoustic source modeling method to separate correlated and uncorrelated sources has been developed. The auto and cross spectrum in the frequency range below 1000 Hz is fitted with a noise propagation model based on a source couplet consisting of a single incoherent source with a single coherent source or a source triplet consisting of a single incoherent source with two coherent point sources. Examples are presented using data from a Pratt \u0026amp; Whitney PW4098 turbofan engine. The method works well. \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Jeffrey Hilton Miles\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 128723660X\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781287236603\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Bibliogov\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 07\/23\/2013\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 28\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.15lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.06d","brand":"Jeffrey Hilton Miles","offers":[{"title":"Paperback","offer_id":48872988999935,"sku":"9781287236603","price":15.75,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.whiterainbookhouse.com\/products\/procedure-for-separating-noise-sources-jeffrey-hilton-miles-9781287236603","provider":"WR Book House","version":"1.0","type":"link"}