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Identification of constitutive properties of a laminated rotor at rest through a condensed modal functional.

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Title: Identification of constitutive properties of a laminated rotor at rest through a condensed modal functional.
Alternate Title: Identification des propriétés constitutives d'un rotor à cage d'écureuil à l'arrêt par une fonctionnelle modale condensée.
Authors: Mogenier, Guillaume1 guillaume.mogenier@insa-lyon.fr, Thouraya, Nouri-Baranger1, Dufour, Regis1, Durantay, Lionel2, Barras, Nicolas2
Source: Mécanique & Industries. Nov2010, Vol. 11 Issue 5, p309-326. 18p. 1 Black and White Photograph, 2 Diagrams, 4 Charts, 14 Graphs.
Subjects: Rotors, Rotational motion, Rayleigh quotient, Guyan method, Mathematical optimization
Abstract (English): Predicting the dynamic behavior of laminated rotors in bending requires the identification of the bending rigidity of the laminated core. An identification of constitutive properties is proposed on the rotor at rest, which is a first step for rotordynamics prediction. Modal parameters predicted and measured are included in a functional based on a hybrid Rayleigh quotient and combined with the Guyan method, the master degrees of freedom corresponding to the measurement points. The laminated core rigidity is extracted through a Levenberg-Marquardt minimization. [ABSTRACT FROM AUTHOR]
Abstract (French): Pour prévoir le comportement dynamique en flexion des rotors à cage d'écureuil, une procedure d'optimisation est proposée pour identifier la rigidité en flexion de la partie feuilletée. Les quantités modales calculées et mesurées sur un rotor feuilleté sont incluses dans une fonctionnelle basée sur un quotient de Rayleigh hybride et combinée à la méthode de condensation de Guyan. Les degrés de liberté de contour sont alors associés aux points de mesure. Une minimisation de Levenberg-Marquardt permet d'extraire la rigidité de la partie feuilletée. [ABSTRACT FROM AUTHOR]
Copyright of Mécanique & Industries is the property of EDP Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
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Header DbId: egs
DbLabel: Engineering Source
An: 58828106
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Identification of constitutive properties of a laminated rotor at rest through a condensed modal functional.
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Identification des propriétés constitutives d'un rotor à cage d'écureuil à l'arrêt par une fonctionnelle modale condensée.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Mogenier%2C+Guillaume%22">Mogenier, Guillaume</searchLink><relatesTo>1</relatesTo><i> guillaume.mogenier@insa-lyon.fr</i><br /><searchLink fieldCode="AR" term="%22Thouraya%2C+Nouri-Baranger%22">Thouraya, Nouri-Baranger</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dufour%2C+Regis%22">Dufour, Regis</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Durantay%2C+Lionel%22">Durantay, Lionel</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Barras%2C+Nicolas%22">Barras, Nicolas</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Mécanique+%26+Industries%22">Mécanique & Industries</searchLink>. Nov2010, Vol. 11 Issue 5, p309-326. 18p. 1 Black and White Photograph, 2 Diagrams, 4 Charts, 14 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Rotors%22">Rotors</searchLink><br /><searchLink fieldCode="DE" term="%22Rotational+motion%22">Rotational motion</searchLink><br /><searchLink fieldCode="DE" term="%22Rayleigh+quotient%22">Rayleigh quotient</searchLink><br /><searchLink fieldCode="DE" term="%22Guyan+method%22">Guyan method</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+optimization%22">Mathematical optimization</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Predicting the dynamic behavior of laminated rotors in bending requires the identification of the bending rigidity of the laminated core. An identification of constitutive properties is proposed on the rotor at rest, which is a first step for rotordynamics prediction. Modal parameters predicted and measured are included in a functional based on a hybrid Rayleigh quotient and combined with the Guyan method, the master degrees of freedom corresponding to the measurement points. The laminated core rigidity is extracted through a Levenberg-Marquardt minimization. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (French)
  Group: Ab
  Data: Pour prévoir le comportement dynamique en flexion des rotors à cage d'écureuil, une procedure d'optimisation est proposée pour identifier la rigidité en flexion de la partie feuilletée. Les quantités modales calculées et mesurées sur un rotor feuilleté sont incluses dans une fonctionnelle basée sur un quotient de Rayleigh hybride et combinée à la méthode de condensation de Guyan. Les degrés de liberté de contour sont alors associés aux points de mesure. Une minimisation de Levenberg-Marquardt permet d'extraire la rigidité de la partie feuilletée. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Mécanique & Industries is the property of EDP Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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    Identifiers:
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        Value: 10.1051/meca/2010045
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 309
    Subjects:
      – SubjectFull: Rotors
        Type: general
      – SubjectFull: Rotational motion
        Type: general
      – SubjectFull: Rayleigh quotient
        Type: general
      – SubjectFull: Guyan method
        Type: general
      – SubjectFull: Mathematical optimization
        Type: general
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      – TitleFull: Identification of constitutive properties of a laminated rotor at rest through a condensed modal functional.
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            NameFull: Mogenier, Guillaume
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            NameFull: Thouraya, Nouri-Baranger
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            NameFull: Dufour, Regis
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            NameFull: Durantay, Lionel
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            NameFull: Barras, Nicolas
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            – D: 01
              M: 11
              Text: Nov2010
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              Y: 2010
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