GENETIC ALGORITHM FOR PARAMETER IDENTIFICATION OF BOUC-WEN MODEL

摘要

The paper presents the capability of Bouc-Wen (BW) model to portray the hysteretic behaviour of materials and a genetic algorithm (GA) based method for BW model parameters identification. The influence of model parameters on the shape of the hysteresis curve is investigated. Consequently, is pointed out the advantage of Bouc-Wen model regarding its remarkable versatility and capability to describe the force variation for any type of the imposed device displacement or material strain. It is proposed a real coded GA for obtaining the BW model parameters and shown on an experimental hysteretic loop the efficiency of this approach.