A reduced interface component mode synthesis method using coarse meshes.
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| Title: | A reduced interface component mode synthesis method using coarse meshes. |
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| Authors: | Gibanica, Mladen1,2 mladen.gibanica@chalmers.se, Abrahamsson, Thomas J.s.1, Rixen, Daniel J.3 |
| Source: | Procedia Engineering. 2017, Vol. 199, p348-353. 6p. |
| Subjects: | Finite element method data processing, Substructuring techniques, Guyan method, Degrees of freedom, Ostwald ripening |
| Abstract: | Component mode synthesis is a technique to simplify the analysis of complicated finite element models. A structure is split into substructures from which reduced order models can be generated and subsequently assembled. A model reduction performance gain can be limited if the component interfaces contain many degrees of freedom, which is often the case for high resolution models. In this paper a substructuring framework with interface reduction is presented. The method first splits a detailed model into substructures. The substructures’ fine mesh is then coarsened on the internal region, while keeping the boundary mesh intact. Thereafter a Guyan reduction is performed on each coarse mesh substructure. The Guyan computations are cheap due to the reduced size of the linear equation system necessary to solve for the coarse mesh system. After synthesis of the statically reduced systems, a reduction basis for the interface degrees of freedom is computed. Thereafter a Craig-Bampton reduction is performed on each fine mesh substructure using projections with the reduced interface degrees of freedom and fixed interface modes. The method is verified on a dense mesh plate model consisting of two substructures. [ABSTRACT FROM AUTHOR] |
| Copyright of Procedia Engineering is the property of Elsevier B.V. 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: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 125100539 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A reduced interface component mode synthesis method using coarse meshes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gibanica%2C+Mladen%22">Gibanica, Mladen</searchLink><relatesTo>1,2</relatesTo><i> mladen.gibanica@chalmers.se</i><br /><searchLink fieldCode="AR" term="%22Abrahamsson%2C+Thomas+J%2Es%2E%22">Abrahamsson, Thomas J.s.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rixen%2C+Daniel+J%2E%22">Rixen, Daniel J.</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Procedia+Engineering%22">Procedia Engineering</searchLink>. 2017, Vol. 199, p348-353. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Finite+element+method+data+processing%22">Finite element method data processing</searchLink><br /><searchLink fieldCode="DE" term="%22Substructuring+techniques%22">Substructuring techniques</searchLink><br /><searchLink fieldCode="DE" term="%22Guyan+method%22">Guyan method</searchLink><br /><searchLink fieldCode="DE" term="%22Degrees+of+freedom%22">Degrees of freedom</searchLink><br /><searchLink fieldCode="DE" term="%22Ostwald+ripening%22">Ostwald ripening</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Component mode synthesis is a technique to simplify the analysis of complicated finite element models. A structure is split into substructures from which reduced order models can be generated and subsequently assembled. A model reduction performance gain can be limited if the component interfaces contain many degrees of freedom, which is often the case for high resolution models. In this paper a substructuring framework with interface reduction is presented. The method first splits a detailed model into substructures. The substructures’ fine mesh is then coarsened on the internal region, while keeping the boundary mesh intact. Thereafter a Guyan reduction is performed on each coarse mesh substructure. The Guyan computations are cheap due to the reduced size of the linear equation system necessary to solve for the coarse mesh system. After synthesis of the statically reduced systems, a reduction basis for the interface degrees of freedom is computed. Thereafter a Craig-Bampton reduction is performed on each fine mesh substructure using projections with the reduced interface degrees of freedom and fixed interface modes. The method is verified on a dense mesh plate model consisting of two substructures. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Procedia Engineering is the property of Elsevier B.V. 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: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.proeng.2017.09.031 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 348 Subjects: – SubjectFull: Finite element method data processing Type: general – SubjectFull: Substructuring techniques Type: general – SubjectFull: Guyan method Type: general – SubjectFull: Degrees of freedom Type: general – SubjectFull: Ostwald ripening Type: general Titles: – TitleFull: A reduced interface component mode synthesis method using coarse meshes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gibanica, Mladen – PersonEntity: Name: NameFull: Abrahamsson, Thomas J.s. – PersonEntity: Name: NameFull: Rixen, Daniel J. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: 2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 18777058 Numbering: – Type: volume Value: 199 Titles: – TitleFull: Procedia Engineering Type: main |
| ResultId | 1 |
