Substructuring approach to the calculation of higher-order eigensensitivity

Shun Weng; Hong Ping Zhu; Yong Xia; Xiao Qing Zhou; Ling Mao

doi:10.1016/j.compstruc.2012.11.005

Substructuring approach to the calculation of higher-order eigensensitivity

Shun Weng, Hong Ping Zhu, Yong Xia, Xiao Qing Zhou, Ling Mao

Research output: Journal article publication › Journal article › Academic research › peer-review

41 Citations (Scopus)

Abstract

Calculation of eigensensitivity is usually time-consuming for a large-scale structure. This paper develops a substructuring method for computing the first, second and high order eigensensitivity. The local area of a structure is treated as an independent substructure to be analyzed. The eigensensitivity of global structure with respect to a design parameter is calculated from the eigensensitivity of a particular substructure that contains the design parameter, thus allowing a significant reduction in computational cost. The accuracy and efficiency of the substructuring method is proved by a frame structure and a highway bridge.

Original language	English
Pages (from-to)	23-33
Number of pages	11
Journal	Computers and Structures
Volume	117
DOIs	https://doi.org/10.1016/j.compstruc.2012.11.005
Publication status	Published - 16 Jan 2013

Keywords

Eigensensitivity
Eigensolution derivative
Residual flexibility
Substructuring method

ASJC Scopus subject areas

Civil and Structural Engineering
Modelling and Simulation
General Materials Science
Mechanical Engineering
Computer Science Applications

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10.1016/j.compstruc.2012.11.005

Cite this

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title = "Substructuring approach to the calculation of higher-order eigensensitivity",

abstract = "Calculation of eigensensitivity is usually time-consuming for a large-scale structure. This paper develops a substructuring method for computing the first, second and high order eigensensitivity. The local area of a structure is treated as an independent substructure to be analyzed. The eigensensitivity of global structure with respect to a design parameter is calculated from the eigensensitivity of a particular substructure that contains the design parameter, thus allowing a significant reduction in computational cost. The accuracy and efficiency of the substructuring method is proved by a frame structure and a highway bridge.",

keywords = "Eigensensitivity, Eigensolution derivative, Residual flexibility, Substructuring method",

author = "Shun Weng and Zhu, \{Hong Ping\} and Yong Xia and Zhou, \{Xiao Qing\} and Ling Mao",

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T1 - Substructuring approach to the calculation of higher-order eigensensitivity

AU - Weng, Shun

AU - Zhu, Hong Ping

AU - Xia, Yong

AU - Zhou, Xiao Qing

AU - Mao, Ling

PY - 2013/1/16

Y1 - 2013/1/16

N2 - Calculation of eigensensitivity is usually time-consuming for a large-scale structure. This paper develops a substructuring method for computing the first, second and high order eigensensitivity. The local area of a structure is treated as an independent substructure to be analyzed. The eigensensitivity of global structure with respect to a design parameter is calculated from the eigensensitivity of a particular substructure that contains the design parameter, thus allowing a significant reduction in computational cost. The accuracy and efficiency of the substructuring method is proved by a frame structure and a highway bridge.

AB - Calculation of eigensensitivity is usually time-consuming for a large-scale structure. This paper develops a substructuring method for computing the first, second and high order eigensensitivity. The local area of a structure is treated as an independent substructure to be analyzed. The eigensensitivity of global structure with respect to a design parameter is calculated from the eigensensitivity of a particular substructure that contains the design parameter, thus allowing a significant reduction in computational cost. The accuracy and efficiency of the substructuring method is proved by a frame structure and a highway bridge.

KW - Eigensensitivity

KW - Eigensolution derivative

KW - Residual flexibility

KW - Substructuring method

UR - https://www.scopus.com/pages/publications/84872163269

U2 - 10.1016/j.compstruc.2012.11.005

DO - 10.1016/j.compstruc.2012.11.005

M3 - Journal article

SN - 0045-7949

VL - 117

SP - 23

EP - 33

JO - Computers and Structures

JF - Computers and Structures

ER -

Substructuring approach to the calculation of higher-order eigensensitivity

Abstract

Keywords

ASJC Scopus subject areas

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