Comparison of some structural active controllers

Abstract

    Active control problems of vibrating structures have attracted considerable attention in recent years. In this paper, three controllers including: Generalized Optimal Active Controller - GOAC, Classical Fuzzy Controller - FC and Hedge-Algebras-based Fuzzy Controller - HAFC are presented for active control of a structure subjected to acceleration load. Establishing steps of above-mentioned controllers are compared in order to stand out the HAFC, a new fuzzy control method based on the Hedge Algebras theory. Their control effects are investigated through time histories of the structure displacement and control force.