This paper presents a comparative study between different nonlinear damper models, developed for semi-active Electro-Rheological damper. The first model is by extending the hysteresis to obtain dynamic characteristic of To improve accuracy capturing damper’s behavior, Bouc-Wen using parameter-varying functions control input and state. One key points in proposed models describe dynamics controll...

Based on the Bouc-Wen model, a nonlinear hysteretic restoring force model is established with dynamic equations. The hardening and softening of material after reaching yield limit are described by force-displacement curve. Gamultiobj algorithm group search optimization (GSO) used to fit identify hysteresis curves, respectively. effectiveness for identifying parameters verified, effects two algo...

Abstract This paper examines the effect of structural damage on practical/computational identifiability parameters that define nonlinear models building structures subjected to earthquake‐induced base motions. The objective is determine level physical expected successfully estimate restoring force models. For this purpose, analyses aim if a hysteretic (Bouc‐Wen type) model can be identified wit...

The nonlinearity behaviour of magnetorheological fluid (MRF) can be described using a number established models such as Bingham and Modified Bouc-Wen models. Since these require the identification model parameters, there is need to estimate parameters' value carefully. In this paper, an optimization algorithm, i.e., Particle Swarm Optimization (PSO) utilized identify models' parameters. PSO alg...

As an important member of smart materials, magnetorheological elastomers (MREs) exhibit characteristics that their modulus can be controlled by an external magnetic field. Based on these experimental results, a viscoelastic solid model with four parameters was proposed to predict the performance of MRE. A building model, three stories high, was constructed using MATLAB SIMULINK to evaluate the ...