Random excitation for modal testing of rotating machinery: Use of modulation technique

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dc.contributor.authorKwon, KSko
dc.contributor.authorLee, Chong-Wonko
dc.date.accessioned2008-01-22T06:32:09Z-
dc.date.available2008-01-22T06:32:09Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2000-07-
dc.identifier.citationJOURNAL OF SOUND AND VIBRATION, v.234, no.2, pp.297 - 309-
dc.identifier.issn0022-460X-
dc.identifier.urihttp://hdl.handle.net/10203/2863-
dc.description.abstractOne of the most popular excitation methods for modal testing of rotating machinery is known to be the uncorrelated isotropic excitation, which requires two independent random sources with equal power for generation of a pair of uncorrelated excitation signals. In this work, a new excitation method, the modulated random excitation, is proposed such that a pair of random signals with equal power for modal testing of anisotropic rotors can be effectively generated by modulating the random signal from a single random source with two harmonic carriers of a frequency with 90 degrees phase difference. The real as well as complex approaches are taken to illustrate the effectiveness of the modulation technique. Finally, digital data processing technique is discussed in relation to the implementation of the modulation technique in the discrete time domain, (C) 2000 Academic Press.-
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherACADEMIC PRESS LTD-
dc.subjectFREQUENCY-RESPONSE FUNCTIONS-
dc.subjectBEARING SYSTEM-
dc.subjectDIAGNOSIS-
dc.titleRandom excitation for modal testing of rotating machinery: Use of modulation technique-
dc.typeArticle-
dc.identifier.wosid000088125400008-
dc.identifier.scopusid2-s2.0-0034229175-
dc.type.rimsART-
dc.citation.volume234-
dc.citation.issue2-
dc.citation.beginningpage297-
dc.citation.endingpage309-
dc.citation.publicationnameJOURNAL OF SOUND AND VIBRATION-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorLee, Chong-Won-
dc.contributor.nonIdAuthorKwon, KS-
dc.type.journalArticleArticle-
dc.subject.keywordPlusFREQUENCY-RESPONSE FUNCTIONS-
dc.subject.keywordPlusBEARING SYSTEM-
dc.subject.keywordPlusDIAGNOSIS-
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