Model upgrading T0 augment linear model capabilities into nonlinear regions

S.B. Cooper; A. delli Carri; D. Di Maio

doi:10.1007/978-3-319-29739-2_19

Model upgrading T0 augment linear model capabilities into nonlinear regions

S.B. Cooper, A. delli Carri, D. Di Maio^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

Identification of nonlinear dynamical systems have enjoyed significant progression over the past few years with the outcome of various developed identificationmethods, however there is still no generalised method applicable to structures with arbitrary nonlinearity. In the analysis of nonlinear dynamical system, it is essential to establish accurate and reliable tools that are capable of estimating the parameters from measured data for both the linear and nonlinear system. This paper presents a modular framework approach for upgrading a valid linear finite element structural model to accommodate any nonlinearities present in a system. To validate the efficiency of the proposed method, numerical and experimental studies are conducted on a “Multiple Beam Test Structure”, the method uses an iterative process to upgrade the nonlinear terms in the system. The results are verified by comparing predicted new response with measured data.

Original language	English
Title of host publication	Nonlinear Dynamics
Subtitle of host publication	Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016
Editors	Gaetan Kerschen
Place of Publication	Cham
Publisher	Springer
Pages	203-217
Number of pages	15
Volume	1
ISBN (Electronic)	978-3-319-29739-2
ISBN (Print)	978-3-319-29738-5
DOIs	https://doi.org/10.1007/978-3-319-29739-2_19
Publication status	Published - 2016
Externally published	Yes
Event	34th Conference and Exposition on Structural Dynamics, IMAC 2016 - Orlando, United States Duration: 25 Jan 2016 → 28 Jan 2016 Conference number: 34

Publication series

Name	Conference Proceedings of the Society for Experimental Mechanics Series
Publisher	Springer
ISSN (Print)	2191-5644
ISSN (Electronic)	2191-5652

Conference

Conference	34th Conference and Exposition on Structural Dynamics, IMAC 2016
Abbreviated title	IMAC
Country/Territory	United States
City	Orlando
Period	25/01/16 → 28/01/16

Keywords

Finite element
Model upgrading
Nonlinearities
Structural models and framework

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10.1007/978-3-319-29739-2_19

Cite this

Cooper, S. B., delli Carri, A., & Di Maio, D. (2016). Model upgrading T0 augment linear model capabilities into nonlinear regions. In G. Kerschen (Ed.), Nonlinear Dynamics: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016 (Vol. 1, pp. 203-217). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-319-29739-2_19

Cooper, S.B. ; delli Carri, A. ; Di Maio, D. / Model upgrading T0 augment linear model capabilities into nonlinear regions. Nonlinear Dynamics: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016. editor / Gaetan Kerschen. Vol. 1 Cham : Springer, 2016. pp. 203-217 (Conference Proceedings of the Society for Experimental Mechanics Series).

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title = "Model upgrading T0 augment linear model capabilities into nonlinear regions",

abstract = "Identification of nonlinear dynamical systems have enjoyed significant progression over the past few years with the outcome of various developed identificationmethods, however there is still no generalised method applicable to structures with arbitrary nonlinearity. In the analysis of nonlinear dynamical system, it is essential to establish accurate and reliable tools that are capable of estimating the parameters from measured data for both the linear and nonlinear system. This paper presents a modular framework approach for upgrading a valid linear finite element structural model to accommodate any nonlinearities present in a system. To validate the efficiency of the proposed method, numerical and experimental studies are conducted on a “Multiple Beam Test Structure”, the method uses an iterative process to upgrade the nonlinear terms in the system. The results are verified by comparing predicted new response with measured data.",

keywords = "Finite element, Model upgrading, Nonlinearities, Structural models and framework",

author = "S.B. Cooper and {delli Carri}, A. and {Di Maio}, D.",

year = "2016",

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language = "English",

isbn = "978-3-319-29738-5",

volume = "1",

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publisher = "Springer",

pages = "203--217",

editor = "Gaetan Kerschen",

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address = "Germany",

note = "34th Conference and Exposition on Structural Dynamics, IMAC 2016, IMAC ; Conference date: 25-01-2016 Through 28-01-2016",

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Cooper, SB, delli Carri, A & Di Maio, D 2016, Model upgrading T0 augment linear model capabilities into nonlinear regions. in G Kerschen (ed.), Nonlinear Dynamics: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016. vol. 1, Conference Proceedings of the Society for Experimental Mechanics Series, Springer, Cham, pp. 203-217, 34th Conference and Exposition on Structural Dynamics, IMAC 2016, Orlando, Florida, United States, 25/01/16. https://doi.org/10.1007/978-3-319-29739-2_19

Model upgrading T0 augment linear model capabilities into nonlinear regions. / Cooper, S.B.; delli Carri, A.; Di Maio, D.
Nonlinear Dynamics: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016. ed. / Gaetan Kerschen. Vol. 1 Cham: Springer, 2016. p. 203-217 (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Model upgrading T0 augment linear model capabilities into nonlinear regions

AU - Cooper, S.B.

AU - delli Carri, A.

AU - Di Maio, D.

N1 - Conference code: 34

PY - 2016

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N2 - Identification of nonlinear dynamical systems have enjoyed significant progression over the past few years with the outcome of various developed identificationmethods, however there is still no generalised method applicable to structures with arbitrary nonlinearity. In the analysis of nonlinear dynamical system, it is essential to establish accurate and reliable tools that are capable of estimating the parameters from measured data for both the linear and nonlinear system. This paper presents a modular framework approach for upgrading a valid linear finite element structural model to accommodate any nonlinearities present in a system. To validate the efficiency of the proposed method, numerical and experimental studies are conducted on a “Multiple Beam Test Structure”, the method uses an iterative process to upgrade the nonlinear terms in the system. The results are verified by comparing predicted new response with measured data.

AB - Identification of nonlinear dynamical systems have enjoyed significant progression over the past few years with the outcome of various developed identificationmethods, however there is still no generalised method applicable to structures with arbitrary nonlinearity. In the analysis of nonlinear dynamical system, it is essential to establish accurate and reliable tools that are capable of estimating the parameters from measured data for both the linear and nonlinear system. This paper presents a modular framework approach for upgrading a valid linear finite element structural model to accommodate any nonlinearities present in a system. To validate the efficiency of the proposed method, numerical and experimental studies are conducted on a “Multiple Beam Test Structure”, the method uses an iterative process to upgrade the nonlinear terms in the system. The results are verified by comparing predicted new response with measured data.

KW - Finite element

KW - Model upgrading

KW - Nonlinearities

KW - Structural models and framework

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SN - 978-3-319-29738-5

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T3 - Conference Proceedings of the Society for Experimental Mechanics Series

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BT - Nonlinear Dynamics

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Cooper SB, delli Carri A, Di Maio D. Model upgrading T0 augment linear model capabilities into nonlinear regions. In Kerschen G, editor, Nonlinear Dynamics: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016. Vol. 1. Cham: Springer. 2016. p. 203-217. (Conference Proceedings of the Society for Experimental Mechanics Series). doi: 10.1007/978-3-319-29739-2_19

Model upgrading T0 augment linear model capabilities into nonlinear regions

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