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.

Department(s)

Engineering Management and Systems Engineering

Second Department

Electrical and Computer Engineering

Third Department

Mechanical and Aerospace Engineering

Comments

Mid-America Transportation Center, University of Nebraska-Lincoln, Grant None

Keywords and Phrases

Damage detection; Health monitoring; Structural integrity

International Standard Serial Number (ISSN)

1996-756X; 0277-786X

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2024 Society of Photo-optical Instrumentation Engineers, All rights reserved.

Publication Date

23 May 1997

Link to Full Text

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