Control of seismically excited vibration using electrorheological materials and Lyapunov methods

This paper describes the use of electrorheologicai (ER) materials in a vibration control system designed to suppress earthquake-excited vibrations. A state-variable model for the ER device is based on micromechanical simulations and rheometric measurements of ER materials. A decentralized bang-bang control law is synthesized using Lyapunov's direct method and is implemented using analog circuitry. The behavior of the closed-loop system is illustrated on a small scale (1:15) building model driven by ground accelerations. The combined effects and relative importance of the controllable stiffness and damping properties of ER materials are examined.

Full Text

Duke Authors

Cited Authors

  • Gavin, HP

Published Date

  • 2001

Published In

Volume / Issue

  • 9 / 1

Start / End Page

  • 27 - 36

International Standard Serial Number (ISSN)

  • 1063-6536

Digital Object Identifier (DOI)

  • 10.1109/87.896743

Citation Source

  • SciVal