Structural Health Monitoring Using Vibration Measurements and Engineering Insight

[+] Author and Article Information
D. C. Zimmerman, T. Simmermacher

Dept. of Mechanical Engineering, University of Houston, Houston, TX 77204-4792

M. Kaouk

Aerospace Science Engineering Dept., Tuskegee University, Tuskegee, AL 36088

J. Vib. Acoust 117(B), 214-221 (Jun 01, 1995) (8 pages) doi:10.1115/1.2838666 History: Received January 01, 1995; Online February 26, 2008


Several system identification algorithms have been proposed that make use of analytical models and measured modal data to determine the location and/or extent of structural damage. In particular, the authors have proposed a computationally attractive Minimum Rank Perturbation Theory (MRPT) which determines perturbation matrices to the mass, damping, and/or stiffness matrices. Inspection of these perturbation matrices provides insight to both the location and extent of structural damage. This paper documents our practical experience in applying MRPT theory to a variety of structures. The ability to incorporate engineering insight and judgment into the algorithm is shown to enhance the performance of the MRPT technique when faced with real-world issues.

Copyright © 1995 by The American Society of Mechanical Engineers
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