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Semi-active Fuzzy Control Of Tuned Mass Damper To Reduce Base-isolated Building Response Under Harmonic Excitation

Submitted2018-05-14
Last Update2018-05-14
TitleSemi-active Fuzzy Control Of Tuned Mass Damper To Reduce Base-isolated Building Response Under Harmonic Excitation
Author(s)Author #1
Author title:
Name: Nassim Djedoui
Org: PhD Candidate, Department of Civil Engineering and Hydraulics, University of Mohamed Khider, LARGHYDE Laboratory, BP 145 RP, 07000, Algeria
Country:
Email: nassim_ingg@hotmail.fr

Author #2
Author title:
Name: Abdelhafid Ounis
Org: Professor, Department of Civil Engineering and Hydraulics, University of Mohamed Khider, LARGHYDE Laboratory, BP 145 RP, 07000, Algeria.
Country:
Email: a.ounis@univ-biskra.dz

Author #3
Author title:
Name: Abdeddaim Mahdi
Org: PhD Candidate, Department of Civil Engineering and Hydraulics, University of Mohamed Khider, LARGHYDE Laboratory, BP 145 RP, 07000, Algeria
Country:
Email: abdeddaim_mms@yahoo.fr

Author #4
Author title:
Name: Seyed Mehdi Zahrai
Org: Professor, School of Civil Engineering, College of Engineering, the University of Tehran, P.O. Box 11155/4563 Tehran, Iran
Country:
Email: mzahrai@ut.ac.ir

Other Author(s)
Contact AuthorAuthor #4
Alt Email: mzahrai@ut.ac.ir
Telephone:
KeywordsSemi-active tuned mass damper (SATMD), Variable damping, Fuzzy logic controller, Base-isolated building, Harmonic excitation, Vibration control
AbstractIn this paper, a closed loop control approach for controlling vibration under harmonic excitation is introduced. A Semi-Active Tuned Mass Damper (SATMD) with time variable damping installed on the lowest floor of a base-isolated structure is investigated. The damping is controlled by a fuzzy logic controller, in which displacement and velocity of the base isolator are used as inputs. The numerical simulation is carried out on two types of 6-degrees of freedom base-isolated structures: the first structure is equipped with a base isolator having low damping, while the second structure is equipped with a base isolator having high damping. Simulation by MATLAB is carried out to test the proposed SATMD under harmonic excitation and the results are compared to those of a classical passive TMD. Results showed that a SATMD with variable damping is more efficient than a classic TMD with constant damping under harmonic excitation, leading to a reduction of 50% in base displacement and acceleration, as well as a reduction of nearly 15% in inter-story drift.
Paperview paper 4332.pdf (2426KB)

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