Paper Information

Journal:   CIVIL ENGINEERING INFRASTRUCTURES JOURNAL (CEIJ) (JOURNAL OF FACULTY OF ENGINEERING)   DECEMBER 2017 , Volume 50 , Number 2; Page(s) 333 To 351.
 
Paper: 

TYPE-1 AND TYPE-2 FUZZY LOGIC CONTROL ALGORITHMS FOR SEMI-ACTIVE SEISMIC VIBRATION CONTROL OF THE COLLEGE URBAN BRIDGE USING MR DAMPERS

 
 
Author(s):  BATHAEI A., RAMEZANI M., GHORBANI TANHA A.K.*
 
* SCHOOL OF CIVIL ENGINEERING, COLLEGE OF ENGINEERING, UNIVERSITY OF TEHRAN, TEHRAN, IRAN
 
Abstract: 

In this study, the application of type-1 and type-2 fuzzy inference system (FIS) in semi-active seismic vibration control of the College Bridge using magnetorheological (MR) dampers is investigated. For this purpose, a detailed 3D finite element model of the bridge fitted with MR dampers is created in OpenSees. The command voltage of MR dampers is determined by employing both types of FISs in Matlab environment and making connection between both software. The results show the higher performance of the type-2 FIS for reducing the undesirable vibrations than that of type-1. This is because of the fact that the type-2 FIS considers interval membership functions for inputs in order to obtain the command voltage of MR dampers. Moreover, type-2 FIS effectively includes the effect of uncertainties and time delay. The results demonstrate that type-2 fuzzy controller is capable of reducing further the maximum displacement, base shear, and moment of the bridge by 24.6, 22.8, and 39.25%, respectively, compared to the type-1 fuzzy controller.

 
Keyword(s): COLLEGE BRIDGE, MR DAMPER, SEMI-ACTIVE CONTROL, TYPE-1 AND TYPE-2 FUZZY LOGIC CONTROLLERS
 
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