Vibration control of a structure using sliding-mode hedge-algebrasbased controller

Abstract

Sliding-mode control (SMC) is known as a popular approach of robust
control methods. Fuzzy sliding-mode control (FSMC) method has been
commonly used to prevent chattering phenomenon, drastical change of
control factor, around sliding surface in sliding-mode control. In Hedgealgebras theory, inherent order relationships among linguistic values of each
linguistic variable are always guaranteed and these values are determined by
isomorphism mapping called semantically quantifying one based on a few
fuzziness parameters of each linguistic variable instead of using fuzzy sets.
In this paper, sliding-mode hedge-algebras-based controller (sHAC) is
designed and applied in active control of a structure subjected to earthquake
in order to show advantages of the proposed method.