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Alireza Mojtahedi
Researcher at University of Tabriz
Publications - 50
Citations - 419
Alireza Mojtahedi is an academic researcher from University of Tabriz. The author has contributed to research in topics: Structural health monitoring & Finite element method. The author has an hindex of 10, co-authored 50 publications receiving 241 citations.
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Journal ArticleDOI
Developing a robust SHM method for offshore jacket platform using model updating and fuzzy logic system
Alireza Mojtahedi,Lotfollahi Yaghin,Yousef Hassanzadeh,Mir Mohammad Ettefagh,Mohammad H. Aminfar,A.B. Aghdam +5 more
TL;DR: In this paper, an experimental investigation on a laboratory model of a jacket platform with the objective of establishing a baseline finite element (FE) model for long-term structural health monitoring for this type of structures is conducted.
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Damage detection of TLP and Spar floating wind turbine using dynamic response of the structure
TL;DR: In this article, a fuzzy-based damage detection method, using dynamic response of the FWT structure, is proposed, which is applied on two types of FWT, Tension Leg Platform (TLP) and Spar.
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Suppressing structural vibration of a jacket-type platform employing a novel Magneto-Rheological Tuned Liquid Column Gas Damper (MR-TLCGD)
TL;DR: In this article, a combined novel Magneto-Rheological Tuned Liquid Column Gas Damper (MR-TLCGD) as a damping system is introduced for the first time in structural control field and the efficiency of the system is investigated on a three dimensional fixed offshore jacket platform under both wave and earthquake excitation.
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Detection of nonlinearity effects in structural integrity monitoring methods for offshore jacket-type structures based on principal component analysis
Alireza Mojtahedi,Lotfollahi Yaghin,Mir Mohammad Ettefagh,Yousef Hassanzadeh,Masahiko Fujikubo +4 more
TL;DR: In this paper, an instrumented physical model for the structural health monitoring of an offshore jacket-type structure and the results of tests in several different damage scenarios were presented. And the results show that the developed methods are suitable for damage classification, but the quality of the acquired signals must be considered an important factor influencing successful classification.
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Structural control of a fixed offshore structure using a new developed tuned liquid column ball gas damper (TLCBGD)
TL;DR: In this article, a damping system as a tuned liquid column ball gas damper (TLCBGD) system is introduced, which is a combined version of TLCBD and a TLCGD system.