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Direct response and force transmissibilities in the characterization of coupled structures.

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Title: Direct response and force transmissibilities in the characterization of coupled structures.
Authors: Jové, Jordi1 (AUTHOR), Guasch, Oriol1 (AUTHOR) oguasch@salle.url.edu
Source: Journal of Sound & Vibration. Oct2017, Vol. 407, p1-15. 15p.
Subjects: Schur complement, Degrees of freedom, Elastic plates & shells, Matrix decomposition, Path analysis (Statistics)
Abstract: A description of coupled structures, and structures with blocked degrees of freedom, is presented in terms of direct transmissibility functions (DTFs) as an alternative to the standard mobility approach. The notion of DTFs between degrees of freedom is extended to DTFs between groups of subsystems for that purpose. The relation between DTFs and mobilities is clearly established and the concept of direct force transmissibility, which offers a different description of signal transmission within a structure, is also introduced. Moreover, a physical interpretation for the decomposition of the mobility matrix of the coupled substructures in terms of Schur complements is given. This highlights the transmission process from input forces to substructure responses. Finally, two numerical examples are included to elucidate all concepts and outline their potential for practical applications. The first one deals with predicting vibrations of a plate after blocking some of its degrees of freedom. The second one addresses signal transmission between two plates with elastic coupling. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Sound & Vibration is the property of Academic Press Inc. 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
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Header DbId: egs
DbLabel: Engineering Source
An: 144265725
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Direct response and force transmissibilities in the characterization of coupled structures.
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  Data: <searchLink fieldCode="AR" term="%22Jové%2C+Jordi%22">Jové, Jordi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guasch%2C+Oriol%22">Guasch, Oriol</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> oguasch@salle.url.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Sound+%26+Vibration%22">Journal of Sound & Vibration</searchLink>. Oct2017, Vol. 407, p1-15. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Schur+complement%22">Schur complement</searchLink><br /><searchLink fieldCode="DE" term="%22Degrees+of+freedom%22">Degrees of freedom</searchLink><br /><searchLink fieldCode="DE" term="%22Elastic+plates+%26+shells%22">Elastic plates & shells</searchLink><br /><searchLink fieldCode="DE" term="%22Matrix+decomposition%22">Matrix decomposition</searchLink><br /><searchLink fieldCode="DE" term="%22Path+analysis+%28Statistics%29%22">Path analysis (Statistics)</searchLink>
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  Label: Abstract
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  Data: A description of coupled structures, and structures with blocked degrees of freedom, is presented in terms of direct transmissibility functions (DTFs) as an alternative to the standard mobility approach. The notion of DTFs between degrees of freedom is extended to DTFs between groups of subsystems for that purpose. The relation between DTFs and mobilities is clearly established and the concept of direct force transmissibility, which offers a different description of signal transmission within a structure, is also introduced. Moreover, a physical interpretation for the decomposition of the mobility matrix of the coupled substructures in terms of Schur complements is given. This highlights the transmission process from input forces to substructure responses. Finally, two numerical examples are included to elucidate all concepts and outline their potential for practical applications. The first one deals with predicting vibrations of a plate after blocking some of its degrees of freedom. The second one addresses signal transmission between two plates with elastic coupling. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Sound & Vibration is the property of Academic Press Inc. 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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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.jsv.2017.06.032
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 15
        StartPage: 1
    Subjects:
      – SubjectFull: Schur complement
        Type: general
      – SubjectFull: Degrees of freedom
        Type: general
      – SubjectFull: Elastic plates & shells
        Type: general
      – SubjectFull: Matrix decomposition
        Type: general
      – SubjectFull: Path analysis (Statistics)
        Type: general
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      – TitleFull: Direct response and force transmissibilities in the characterization of coupled structures.
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            NameFull: Jové, Jordi
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            NameFull: Guasch, Oriol
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              Text: Oct2017
              Type: published
              Y: 2017
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              Value: 407
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            – TitleFull: Journal of Sound & Vibration
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