Development and application of nonlinear controller using variable damping devices

Author

Hatada, Tomohiko ; Smith, H.A.

Author_Institution

Kobori Res. Complex, Kajima Corp., Tokyo, Japan

Volume

1

fYear

1997

fDate

4-6 Jun 1997

Firstpage

453

Abstract

To improve the safety of building structures for large earthquakes, a nonlinear controller which utilizes variable damping devices is presented. The control algorithm is formulated based on the Lyapunov stability theory considering the constraints associated with the function of the control device. A boundary layer filter is introduced to eliminate the chattering effect associated with implementation of the controller. As a result, the proposed nonlinear controller takes the form of filtered bang-bang control. The control effect is analyzed through numerical simulations on a three-story model building structure. The results show the applicability of the proposed nonlinear controller to realistic, full scale civil structures

Keywords

Lyapunov methods; bang-bang control; building management systems; damping; earthquakes; filtering theory; nonlinear control systems; safety systems; structural engineering; Lyapunov stability theory; boundary layer filter; building structure safety; earthquakes; nonlinear controller; variable damping devices; Buildings; Control systems; Damping; Earthquakes; Force control; Nonlinear control systems; Safety devices; Size control; Stability; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1997. Proceedings of the 1997

Conference_Location

Albuquerque, NM

ISSN

0743-1619

Print_ISBN

0-7803-3832-4

Type

conf

DOI

10.1109/ACC.1997.611839

Filename

611839