Substructure method to dynamic analysis of local nonlinear structure

Shun Weng; Tuoyu Jiang; Hongping Zhu; Yong Xia; Ling Ye

Substructure method to dynamic analysis of local nonlinear structure

Shun Weng, Tuoyu Jiang, Hongping Zhu, Yong Xia, Ling Ye

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

The practical civil structures usually have a large number of degrees of freedom while the nonlinear components are spatially localized. The substructure method is proposed to divide the complicated structures into linear and nonlinear substructures. The linear substructures are simplified and analyzed by the condensation methods, while the expensive nonlinear analysis are localized in one or several substructures by employing the improved Newmark - β method. The linear and nonlinear substructures are subsequently reconnected by the displacement and force compatibility to calculate the dynamic responses of the global structure. In addition, the system responses calculated by the substructure method can be used in the system identification of local nonlinear structures. A numerical examples is employed to illustrate the proposed method.

Original language	English
Title of host publication	SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure
Publisher	International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII
Publication status	Published - 1 Jan 2015
Event	7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015 - Torino, Italy Duration: 1 Jul 2015 → 3 Jul 2015

Conference

Conference	7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015
Country/Territory	Italy
City	Torino
Period	1/07/15 → 3/07/15

Keywords

Dynamic response
Moving force identification
Nonlinear system

ASJC Scopus subject areas

Building and Construction
Civil and Structural Engineering
Artificial Intelligence

Cite this

@inproceedings{3128065595ab404e9d67309960378a99,

title = "Substructure method to dynamic analysis of local nonlinear structure",

abstract = "The practical civil structures usually have a large number of degrees of freedom while the nonlinear components are spatially localized. The substructure method is proposed to divide the complicated structures into linear and nonlinear substructures. The linear substructures are simplified and analyzed by the condensation methods, while the expensive nonlinear analysis are localized in one or several substructures by employing the improved Newmark - β method. The linear and nonlinear substructures are subsequently reconnected by the displacement and force compatibility to calculate the dynamic responses of the global structure. In addition, the system responses calculated by the substructure method can be used in the system identification of local nonlinear structures. A numerical examples is employed to illustrate the proposed method.",

keywords = "Dynamic response, Moving force identification, Nonlinear system",

author = "Shun Weng and Tuoyu Jiang and Hongping Zhu and Yong Xia and Ling Ye",

year = "2015",

month = jan,

day = "1",

language = "English",

booktitle = "SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure",

publisher = "International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII",

note = "7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015 ; Conference date: 01-07-2015 Through 03-07-2015",

}

Weng, S, Jiang, T, Zhu, H, Xia, Y & Ye, L 2015, Substructure method to dynamic analysis of local nonlinear structure. in SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure. International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII, 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015, Torino, Italy, 1/07/15.

Substructure method to dynamic analysis of local nonlinear structure. / Weng, Shun; Jiang, Tuoyu; Zhu, Hongping et al.
SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure. International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII, 2015.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Substructure method to dynamic analysis of local nonlinear structure

AU - Weng, Shun

AU - Jiang, Tuoyu

AU - Zhu, Hongping

AU - Xia, Yong

AU - Ye, Ling

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The practical civil structures usually have a large number of degrees of freedom while the nonlinear components are spatially localized. The substructure method is proposed to divide the complicated structures into linear and nonlinear substructures. The linear substructures are simplified and analyzed by the condensation methods, while the expensive nonlinear analysis are localized in one or several substructures by employing the improved Newmark - β method. The linear and nonlinear substructures are subsequently reconnected by the displacement and force compatibility to calculate the dynamic responses of the global structure. In addition, the system responses calculated by the substructure method can be used in the system identification of local nonlinear structures. A numerical examples is employed to illustrate the proposed method.

AB - The practical civil structures usually have a large number of degrees of freedom while the nonlinear components are spatially localized. The substructure method is proposed to divide the complicated structures into linear and nonlinear substructures. The linear substructures are simplified and analyzed by the condensation methods, while the expensive nonlinear analysis are localized in one or several substructures by employing the improved Newmark - β method. The linear and nonlinear substructures are subsequently reconnected by the displacement and force compatibility to calculate the dynamic responses of the global structure. In addition, the system responses calculated by the substructure method can be used in the system identification of local nonlinear structures. A numerical examples is employed to illustrate the proposed method.

KW - Dynamic response

KW - Moving force identification

KW - Nonlinear system

UR - http://www.scopus.com/inward/record.url?scp=84978731784&partnerID=8YFLogxK

M3 - Conference article published in proceeding or book

BT - SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure

PB - International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII

T2 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015

Y2 - 1 July 2015 through 3 July 2015

ER -

Substructure method to dynamic analysis of local nonlinear structure

Abstract

Conference

Keywords

ASJC Scopus subject areas

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