On a feedback-feedforward identification control algorithm for feedback active controlled structures

La Duc Viet, Nguyen Dong Anh
Author affiliations

Authors

  • La Duc Viet Institute of Mechanics
  • Nguyen Dong Anh Institute of Mechanics

DOI:

https://doi.org/10.15625/0866-7136/29/4/5599

Abstract

Linear quadratic regulator (LQR) is an effective method of feedback active control theory. However, the LQR control is not truly optimal because it is only a feedback algorithm, i.e. the external excitation term is ignored in the optimal equation. In a previous paper [1], the identification algorithm is presented for feedback active controlled systems to identify the excitation from the structural response measured. The aim of this paper is to propose a feedback-feedforward control algorithm using the identified excitation to improve the classical LQR control. A numerical simulation is applied to an eight story building subjected to base acceleration and controlled by active mass damper system.

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Published

31-12-2007

Issue

Section

Research Article

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