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

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

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Valentín-Sívico, J., Rao, V. S., & Koval, L. R. (1997). Health monitoring of bridge-like structures using state variable models. Proceedings of SPIE - The International Society for Optical Engineering, 3043, 156-168. https://doi.org/10.1117/12.274639

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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.",

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AU - Koval, Leslie R.

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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.

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