A component mode selection method based on a consistent perturbation expansion of interface displacement

Soo Min Kim; Jin Gyun Kim; K. C. Park; Soo Won Chae

doi:10.1016/j.cma.2017.11.010

A component mode selection method based on a consistent perturbation expansion of interface displacement

Soo Min Kim, Jin Gyun Kim, K. C. Park, Soo Won Chae

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

A mode selection method is presented for the reduced-order modeling (ROM) of structural systems in conjunction with the Craig–Bampton component mode synthesis technique. The proposed method is derived by using a consistent expansion of the interface displacement in terms of a frequency-dependent small parameter as applied to a Craig–Bampton-like ROM formulation. It is found that this procedure yields a coupling mechanism of the modes of the full model to those of substructures. The present mode selection method employs this coupling mechanism as an indicator, labeled as the CMS_σ method, for the substructural modal contributions to the full model. The performance of the proposed method is demonstrated by various numerical examples and compared favorably with existing method such as the CMS_χ method.

Original language	English
Pages (from-to)	578-597
Number of pages	20
Journal	Computer Methods in Applied Mechanics and Engineering
Volume	330
DOIs	https://doi.org/10.1016/j.cma.2017.11.010
Publication status	Published - 2018 Mar 1

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Programs through the National Research Foundation of Korea funded by the Ministry of Science, ICT, and Future Planning ( NRF-2016R1A2B4013885 , NRF-2015R1C1A1A01051499 ).

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Component mode synthesis
Mode selection method
Moment-matching
Reduced-order modeling
Structural dynamics

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
Mechanical Engineering
General Physics and Astronomy
Computer Science Applications

Access to Document

10.1016/j.cma.2017.11.010

Cite this

@article{40c371be10d1475c99f00ad674fb1979,

title = "A component mode selection method based on a consistent perturbation expansion of interface displacement",

abstract = "A mode selection method is presented for the reduced-order modeling (ROM) of structural systems in conjunction with the Craig–Bampton component mode synthesis technique. The proposed method is derived by using a consistent expansion of the interface displacement in terms of a frequency-dependent small parameter as applied to a Craig–Bampton-like ROM formulation. It is found that this procedure yields a coupling mechanism of the modes of the full model to those of substructures. The present mode selection method employs this coupling mechanism as an indicator, labeled as the CMSσ method, for the substructural modal contributions to the full model. The performance of the proposed method is demonstrated by various numerical examples and compared favorably with existing method such as the CMSχ method.",

keywords = "Component mode synthesis, Mode selection method, Moment-matching, Reduced-order modeling, Structural dynamics",

author = "Kim, {Soo Min} and Kim, {Jin Gyun} and Park, {K. C.} and Chae, {Soo Won}",

note = "Funding Information: This research was supported by the Basic Science Research Programs through the National Research Foundation of Korea funded by the Ministry of Science, ICT, and Future Planning ( NRF-2016R1A2B4013885 , NRF-2015R1C1A1A01051499 ). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = mar,

day = "1",

doi = "10.1016/j.cma.2017.11.010",

language = "English",

volume = "330",

pages = "578--597",

journal = "Computer Methods in Applied Mechanics and Engineering",

issn = "0045-7825",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A component mode selection method based on a consistent perturbation expansion of interface displacement

AU - Kim, Soo Min

AU - Kim, Jin Gyun

AU - Park, K. C.

AU - Chae, Soo Won

N1 - Funding Information: This research was supported by the Basic Science Research Programs through the National Research Foundation of Korea funded by the Ministry of Science, ICT, and Future Planning ( NRF-2016R1A2B4013885 , NRF-2015R1C1A1A01051499 ). Publisher Copyright: © 2017 Elsevier B.V.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - A mode selection method is presented for the reduced-order modeling (ROM) of structural systems in conjunction with the Craig–Bampton component mode synthesis technique. The proposed method is derived by using a consistent expansion of the interface displacement in terms of a frequency-dependent small parameter as applied to a Craig–Bampton-like ROM formulation. It is found that this procedure yields a coupling mechanism of the modes of the full model to those of substructures. The present mode selection method employs this coupling mechanism as an indicator, labeled as the CMSσ method, for the substructural modal contributions to the full model. The performance of the proposed method is demonstrated by various numerical examples and compared favorably with existing method such as the CMSχ method.

AB - A mode selection method is presented for the reduced-order modeling (ROM) of structural systems in conjunction with the Craig–Bampton component mode synthesis technique. The proposed method is derived by using a consistent expansion of the interface displacement in terms of a frequency-dependent small parameter as applied to a Craig–Bampton-like ROM formulation. It is found that this procedure yields a coupling mechanism of the modes of the full model to those of substructures. The present mode selection method employs this coupling mechanism as an indicator, labeled as the CMSσ method, for the substructural modal contributions to the full model. The performance of the proposed method is demonstrated by various numerical examples and compared favorably with existing method such as the CMSχ method.

KW - Component mode synthesis

KW - Mode selection method

KW - Moment-matching

KW - Reduced-order modeling

KW - Structural dynamics

UR - http://www.scopus.com/inward/record.url?scp=85036466303&partnerID=8YFLogxK

U2 - 10.1016/j.cma.2017.11.010

DO - 10.1016/j.cma.2017.11.010

M3 - Article

AN - SCOPUS:85036466303

SN - 0045-7825

VL - 330

SP - 578

EP - 597

JO - Computer Methods in Applied Mechanics and Engineering

JF - Computer Methods in Applied Mechanics and Engineering

ER -

A component mode selection method based on a consistent perturbation expansion of interface displacement

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this