Health monitoring of bridge-like structures using state variable models

Javier Valentín-Sívico; Vittal S. Rao; Leslie R. Koval

doi:10.1117/12.274639

Health monitoring of bridge-like structures using state variable models

Javier Valentín-Sívico, Vittal S. Rao, Leslie R. Koval

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

A global damage detection method for civil engineering structures is proposed. This method provides the capability of determining the reduction in both stiffness and damping parameters of the structural elements. The proposed method uses the state-space representation of the structural dynamics to make the diagnosis of structural integrity. Given that the state-space representation of any system is not unique, the damage detection procedure is developed for the physical coordinates of the state-space representation. A transformation matrix to get any arbitrary state-space representation into the physical coordinates is also utilized. The feasibility of the proposed method is verified on a numerical example as well as on a simulated three-bar truss structure with 3 degrees-of-freedom.

Original language	English
Pages (from-to)	156-168
Number of pages	13
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3043
DOIs	https://doi.org/10.1117/12.274639
State	Published - May 23 1997
Event	Smart Structures and Materials 1997: Smart Systems for Bridges, Structures, and Highways - San Diego, United States Duration: Mar 3 1997 → Mar 6 1997

Keywords

Damage detection
Health monitoring
Structural integrity

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10.1117/12.274639

Cite this

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title = "Health monitoring of bridge-like structures using state variable models",

abstract = "A global damage detection method for civil engineering structures is proposed. This method provides the capability of determining the reduction in both stiffness and damping parameters of the structural elements. The proposed method uses the state-space representation of the structural dynamics to make the diagnosis of structural integrity. Given that the state-space representation of any system is not unique, the damage detection procedure is developed for the physical coordinates of the state-space representation. A transformation matrix to get any arbitrary state-space representation into the physical coordinates is also utilized. The feasibility of the proposed method is verified on a numerical example as well as on a simulated three-bar truss structure with 3 degrees-of-freedom.",

keywords = "Damage detection, Health monitoring, Structural integrity",

author = "Javier Valent{\'i}n-S{\'i}vico and Rao, {Vittal S.} and Koval, {Leslie R.}",

note = "Funding Information: This research is supported by a grant from the Mid-America Transportation Center (MATC). The support and technical interest of Dr. Jerry Westphal, Associate Director of MATC are gratefully acknowledged. Publisher Copyright: {\textcopyright} 1997 SPIE. All rights reserved.; null ; Conference date: 03-03-1997 Through 06-03-1997",

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doi = "10.1117/12.274639",

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TY - JOUR

T1 - Health monitoring of bridge-like structures using state variable models

AU - Valentín-Sívico, Javier

AU - Rao, Vittal S.

AU - Koval, Leslie R.

N1 - Funding Information: This research is supported by a grant from the Mid-America Transportation Center (MATC). The support and technical interest of Dr. Jerry Westphal, Associate Director of MATC are gratefully acknowledged. Publisher Copyright: © 1997 SPIE. All rights reserved.

PY - 1997/5/23

Y1 - 1997/5/23

N2 - A global damage detection method for civil engineering structures is proposed. This method provides the capability of determining the reduction in both stiffness and damping parameters of the structural elements. The proposed method uses the state-space representation of the structural dynamics to make the diagnosis of structural integrity. Given that the state-space representation of any system is not unique, the damage detection procedure is developed for the physical coordinates of the state-space representation. A transformation matrix to get any arbitrary state-space representation into the physical coordinates is also utilized. The feasibility of the proposed method is verified on a numerical example as well as on a simulated three-bar truss structure with 3 degrees-of-freedom.

AB - A global damage detection method for civil engineering structures is proposed. This method provides the capability of determining the reduction in both stiffness and damping parameters of the structural elements. The proposed method uses the state-space representation of the structural dynamics to make the diagnosis of structural integrity. Given that the state-space representation of any system is not unique, the damage detection procedure is developed for the physical coordinates of the state-space representation. A transformation matrix to get any arbitrary state-space representation into the physical coordinates is also utilized. The feasibility of the proposed method is verified on a numerical example as well as on a simulated three-bar truss structure with 3 degrees-of-freedom.

KW - Damage detection

KW - Health monitoring

KW - Structural integrity

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U2 - 10.1117/12.274639

DO - 10.1117/12.274639

M3 - Conference article

AN - SCOPUS:85031254336

VL - 3043

SP - 156

EP - 168

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

Y2 - 3 March 1997 through 6 March 1997

ER -

Health monitoring of bridge-like structures using state variable models

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