Title: Generalised optimal active control algorithm for seismic-resistant structures with active and hybrid control

Authors: Franklin Y. Cheng

Addresses: Civil Engineering Department, Intelligent Systems Center, University of Missouri-Rolla, Rolla, MO 65409-0030, USA

Abstract: The paper presents several optimal control algorithms including Riccati and instantaneous algorithms (ROAC and IOAC), generalised optimal control algorithm (GOAC), along with state control and state-slope control gain matrices. The strength and weaknesses of these algorithms are assessed and illustrated with numerical examples. It is concluded that GOAC is better than ROAC and IOAC in performance and that hybrid control is more effective in reducing structural response than active or passive devices only. Selection of state control or state-slope control gain matrix depends on the characteristics of the passive device.

Keywords: generalised optimal active control (GOAC); generalised optimal hybrid control (GOHC); hybrid control; state control gain; state-slope control gain; active control; passive control; earthquake; Riccati optimal active control (ROAC); instantaneous optimal active control (IOAC).

DOI: 10.1504/IJCAT.2000.000222

International Journal of Computer Applications in Technology, 2000 Vol.13 No.1/2, pp.42-51

Published online: 13 Jul 2003 *

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