Model updating of lattice structures: A substructure energy approach

Hui FANG; Tie Jun WANG; Xi CHEN

doi:10.1016/j.ymssp.2011.01.002

Model updating of lattice structures: A substructure energy approach

Hui FANG, Tie Jun WANG, Xi CHEN^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

14 Citations (Scopus)

Abstract

Model updating is an inverse problem to identify and correct uncertain modeling parameters, which leads to better predictions of the dynamic behavior of a target structure. This study presents a direct physical property adjustment method and the substructure energy approach, which can accurately update the stiffness and mass matrices of lattice structures using incomplete eigenvectors measured from critical substructures. For validation, the proposed method is applied to update models of a mass-spring system, a two-dimensional, and a three-dimensional lattice structure.

Original language	English
Pages (from-to)	1469-1484
Number of pages	16
Journal	Mechanical Systems and Signal Processing
Volume	25
Issue number	5
DOIs	https://doi.org/10.1016/j.ymssp.2011.01.002
Publication status	Published - Jul 2011
Externally published	Yes

Bibliographical note

Acknowledgments:
This work was supported by the National Natural Science Foundation of China (50928601 and 11002133), National Science Foundation (CMMI-0643726), World Class University program through the National Research Foundation of Korea (R32-2008-000-20042-0), Changjiang Scholar Program from Ministry of Education of China, Key Program of CAEP Science and Technology Fund (2010A0203007), and National 973 Basic Research Program of China (2006CB601206).

Keywords

Lattice structure
Modal analysis
Model updating

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10.1016/j.ymssp.2011.01.002

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title = "Model updating of lattice structures: A substructure energy approach",

abstract = "Model updating is an inverse problem to identify and correct uncertain modeling parameters, which leads to better predictions of the dynamic behavior of a target structure. This study presents a direct physical property adjustment method and the substructure energy approach, which can accurately update the stiffness and mass matrices of lattice structures using incomplete eigenvectors measured from critical substructures. For validation, the proposed method is applied to update models of a mass-spring system, a two-dimensional, and a three-dimensional lattice structure.",

keywords = "Lattice structure, Modal analysis, Model updating",

author = "Hui FANG and WANG, {Tie Jun} and Xi CHEN",

note = "Acknowledgments: This work was supported by the National Natural Science Foundation of China (50928601 and 11002133), National Science Foundation (CMMI-0643726), World Class University program through the National Research Foundation of Korea (R32-2008-000-20042-0), Changjiang Scholar Program from Ministry of Education of China, Key Program of CAEP Science and Technology Fund (2010A0203007), and National 973 Basic Research Program of China (2006CB601206).",

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AU - FANG, Hui

AU - WANG, Tie Jun

AU - CHEN, Xi

N1 - Acknowledgments: This work was supported by the National Natural Science Foundation of China (50928601 and 11002133), National Science Foundation (CMMI-0643726), World Class University program through the National Research Foundation of Korea (R32-2008-000-20042-0), Changjiang Scholar Program from Ministry of Education of China, Key Program of CAEP Science and Technology Fund (2010A0203007), and National 973 Basic Research Program of China (2006CB601206).

PY - 2011/7

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N2 - Model updating is an inverse problem to identify and correct uncertain modeling parameters, which leads to better predictions of the dynamic behavior of a target structure. This study presents a direct physical property adjustment method and the substructure energy approach, which can accurately update the stiffness and mass matrices of lattice structures using incomplete eigenvectors measured from critical substructures. For validation, the proposed method is applied to update models of a mass-spring system, a two-dimensional, and a three-dimensional lattice structure.

AB - Model updating is an inverse problem to identify and correct uncertain modeling parameters, which leads to better predictions of the dynamic behavior of a target structure. This study presents a direct physical property adjustment method and the substructure energy approach, which can accurately update the stiffness and mass matrices of lattice structures using incomplete eigenvectors measured from critical substructures. For validation, the proposed method is applied to update models of a mass-spring system, a two-dimensional, and a three-dimensional lattice structure.

KW - Lattice structure

KW - Modal analysis

KW - Model updating

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DO - 10.1016/j.ymssp.2011.01.002

M3 - Journal Article (refereed)

AN - SCOPUS:79953854386

SN - 0888-3270

VL - 25

SP - 1469

EP - 1484

JO - Mechanical Systems and Signal Processing

JF - Mechanical Systems and Signal Processing

IS - 5

ER -

Model updating of lattice structures: A substructure energy approach

Abstract

Bibliographical note

Keywords

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