{"title":"Assessing mode indicator functions used in modal testing","authors":"M. Radeṣ","doi":"10.56958/jesi.2022.7.2.131","DOIUrl":null,"url":null,"abstract":"This paper presents a comparative study of the performance of some Mode Indicator Functions used in the modal testing of a structure with close modes, based on a restricted and non-optimal data set with a single reference. Best results are obtained using multi-curve modal indicators having the form of orthogonal projectors defined somewhat complementary to componentwise power spectra.","PeriodicalId":52936,"journal":{"name":"Journal of Engineering Sciences and Innovation","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Engineering Sciences and Innovation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.56958/jesi.2022.7.2.131","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
This paper presents a comparative study of the performance of some Mode Indicator Functions used in the modal testing of a structure with close modes, based on a restricted and non-optimal data set with a single reference. Best results are obtained using multi-curve modal indicators having the form of orthogonal projectors defined somewhat complementary to componentwise power spectra.
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