Damage Identification through Regularization Method. II: Applications
Publication: Journal of Engineering Mechanics
Volume 124, Issue 1
Abstract
The methodology and theoretical development of damage identification through the regularization method are described. Numerical studies of a two-degree-of-freedom and a 10-degree-of-freedom shear-beam-type structure and experimental correlation with a three-story model structure are reported in this paper. The complete time history of the underlying damage process is satisfactorily estimated from noisy measurements (with noise level as high as 20–40%). Measurements can be displacements, velocities, accelerations or any combination thereof subject to observability conditions. Noise in input measurements is handled by treating input as an augmented state. Based on the identified time histories, damage model and its associated parameters are estimated using correlation and least-square tests. In the three-story experimental study, damage simulated through an actively controlled tendon system is successfully identified from displacement measurements.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Beck, J. L., Vanik, M. W., and Katafygiotis, L. S. (1994). “Determination of stiffness changes from modal parameter changes for structural health monitoring.”Proc., First World Conf. Struct. Control, Los Angeles, Calif., TA3-13–TA3-22.
2.
Chung, L. L., Lin, R. C., Soong, T. T., and Reinhorn, A. M.(1989). “Experimental study of active control for MDOF seismic structures.”J. Engrg. Mech., ASCE, 115, 1609–1627.
3.
Ge, L. (1996). “Damage assessment through nonlinear structural identification,” PhD thesis, Dept. of Civ. Engrg., State Univ. of New York at Buffalo, Buffalo, N.Y.
4.
Ge, L., and Soong, T. T.(1997). “Damage identification through regularization method I: theory.”J. Engrg. Mech., ASCE, 124(1), 103–108.
5.
Park, Y. J., and Ang, A. H.-S. (1985). “Mechanistic seismic damage model for reinforced concrete.”J. Struct. Engrg., ASCE, 111(4), 722– 739.
6.
Stry, G. I., and Mook, D. J. (1991). “Correlation techniques in robust nonlinear system realization/identification.”AAS/AIAA Spaceflight Mechanics Meeting, Houston, Tex.
7.
Wen, Y. K.(1976). “Methods for random vibration of hysteretic system.”J. Engrg. Mech., ASCE, 102(2), 249–263.
8.
Wu, Z., Soong, T. T., and Lin, R. C. (1995). “Nonlinear feedback control for improved peak response reduction.”J. Smart Mat. and Struct., 4, A140–A147.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 124 • Issue 1 • January 1998
Pages: 109 - 116
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jan 1, 1998
Published in print: Jan 1998
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.