Identification of Close Modes on Frequency in Rotating Systems

In the area of modal balancing, it is essential to identify the vibration modes to be balanced in order to obtain the different modal parameters that will allow knowing the correction weight and its position in the balance planes. However, in some cases, a single mode is apparently observed in the p...

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Autores principales:	Rafael A. Figueroa-Díaz, Pedro Cruz-Alcantar, Antonio de J. Balvantín-García
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	modal balancing placement angle characteristic pattern modal parameter extraction Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/91deb31cc11f40b1b3ac716d245f9c35
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id	oai:doaj.org-article:91deb31cc11f40b1b3ac716d245f9c35
record_format	dspace
spelling	oai:doaj.org-article:91deb31cc11f40b1b3ac716d245f9c352021-11-11T15:03:08ZIdentification of Close Modes on Frequency in Rotating Systems10.3390/app112199632076-3417https://doaj.org/article/91deb31cc11f40b1b3ac716d245f9c352021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9963https://doaj.org/toc/2076-3417In the area of modal balancing, it is essential to identify the vibration modes to be balanced in order to obtain the different modal parameters that will allow knowing the correction weight and its position in the balance planes. However, in some cases, a single mode is apparently observed in the polar response diagrams used for this process, which actually contains at least two modes and which, when added vectorially, shows only one apparent mode. In these cases, in addition to the intrinsic errors when using a modal parameter extraction tool, there will be errors in determining the correction weight for the modes, as well as for the placement angle. In this work, an identification methodology is presented which, through the use of coordinate transformation and a modal parameter extraction tool, allows identifying characteristic patterns of close modes in frequency and which, when applied in the study of a system in the field, offers robustness and applicability.Rafael A. Figueroa-DíazPedro Cruz-AlcantarAntonio de J. Balvantín-GarcíaMDPI AGarticlemodal balancingplacement anglecharacteristic patternmodal parameter extractionTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9963, p 9963 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	modal balancing placement angle characteristic pattern modal parameter extraction Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	modal balancing placement angle characteristic pattern modal parameter extraction Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Rafael A. Figueroa-Díaz Pedro Cruz-Alcantar Antonio de J. Balvantín-García Identification of Close Modes on Frequency in Rotating Systems
description	In the area of modal balancing, it is essential to identify the vibration modes to be balanced in order to obtain the different modal parameters that will allow knowing the correction weight and its position in the balance planes. However, in some cases, a single mode is apparently observed in the polar response diagrams used for this process, which actually contains at least two modes and which, when added vectorially, shows only one apparent mode. In these cases, in addition to the intrinsic errors when using a modal parameter extraction tool, there will be errors in determining the correction weight for the modes, as well as for the placement angle. In this work, an identification methodology is presented which, through the use of coordinate transformation and a modal parameter extraction tool, allows identifying characteristic patterns of close modes in frequency and which, when applied in the study of a system in the field, offers robustness and applicability.
format	article
author	Rafael A. Figueroa-Díaz Pedro Cruz-Alcantar Antonio de J. Balvantín-García
author_facet	Rafael A. Figueroa-Díaz Pedro Cruz-Alcantar Antonio de J. Balvantín-García
author_sort	Rafael A. Figueroa-Díaz
title	Identification of Close Modes on Frequency in Rotating Systems
title_short	Identification of Close Modes on Frequency in Rotating Systems
title_full	Identification of Close Modes on Frequency in Rotating Systems
title_fullStr	Identification of Close Modes on Frequency in Rotating Systems
title_full_unstemmed	Identification of Close Modes on Frequency in Rotating Systems
title_sort	identification of close modes on frequency in rotating systems
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/91deb31cc11f40b1b3ac716d245f9c35
work_keys_str_mv	AT rafaelafigueroadiaz identificationofclosemodesonfrequencyinrotatingsystems AT pedrocruzalcantar identificationofclosemodesonfrequencyinrotatingsystems AT antoniodejbalvantingarcia identificationofclosemodesonfrequencyinrotatingsystems
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Identification of Close Modes on Frequency in Rotating Systems

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