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Adaptive modeling, identification, and control of dynamic structural systems. I. Theory

Journal of Engineering Mechanics

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Abstract

A concise review of the theory of adaptive modeling, identification, and control of dynamic structural systems based on discrete-time recordings is presented. Adaptive methods have four major advantages over the classical methods: (1) Removal of the noise from the signal is done over the whole frequency band; (2) time-varying characteristics of systems can be tracked; (3) systems with unknown characteristics can be controlled; and (4) a small segment of the data is needed during the computations. Included in the paper are the discrete-time representation of single-input single-output (SISO) systems, models for SISO systems with noise, the concept of stochastic approximation, recursive prediction error method (RPEM) for system identification, and the adaptive control. Guidelines for model selection and model validation and the computational aspects of the method are also discussed in the paper. The present paper is the first of two companion papers. The theory given in the paper is limited to that which is necessary to follow the examples for applications in structural dynamics presented in the second paper.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Adaptive modeling, identification, and control of dynamic structural systems. I. Theory
Series title:
Journal of Engineering Mechanics
Volume
115
Issue:
11
Year Published:
1989
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Engineering Mechanics
First page:
2386
Last page:
2405
Number of Pages:
20