Zobrazeno 1 - 10 of 16 pro vyhledávání: '"M. A. Lotfollahi"'
1
Akademický článek
Finite Element Model Updating of an Offshore Jacket Platforms using Experimental Modal Analysis
Autor: F. Hosseinlou, A. Mojtahedi, M. A. Lotfollahi
Publikováno v: Ravish/hā-yi ̒adadī dar Muhandisī, Vol 36, Iss 1, Pp 67-84 (2017)
An important requirement in design is to be able to compare experimental results from prototype structures with predicted results from a corresponding finite element model. In this context, updating the model using measured vibration test can lead to
Externí odkaz: https://doaj.org/article/c0719027ae3a4b8483910b125a806e73
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3
Akademický článek
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4
Vibration control of Multi Degree of Freedom structure under earthquake excitation with TMD control and active control force using fuzzy logic method at the highest and the lowest story of the building
Autor: M. Ali Lotfollahi Yaghin, M. Reza, Bagerzadeh Karimi, B. Bagheri, V. Sadeghi Balkanlou
Publikováno v: IOSR Journal of Mechanical and Civil Engineering. 8:07-12
In this paper, Control system performance, as a passive and active control on the example building under the Bam earthquake excitation, was studied. In order to passive and active control the structure TMD system mounted on the top floor of the build
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b89c6002cafd2f420b9109be9961c3d7
https://doi.org/10.9790/1684-0850712
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5
Artificial neural network ability in evaluation of random wave-induced inline force on a vertical cylinder
Autor: B. Sanaaty, A. Pourtaghi, A. Lotfollahi-Yaghin, M. A. Lotfollahi-Yaghin
Publikováno v: China Ocean Engineering. 26:19-36
An approach based on artificial neural network (ANN) is used to develop predictive relations between hydrodynamic inline force on a vertical cylinder and some effective parameters. The data used to calibrate and validate the ANN models are obtained f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da284b4c0940df26a8f93ffc80cd41e5
https://doi.org/10.1007/s13344-012-0002-8
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7
Akademický článek
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8
The Effect of Urmia-Lake Water on Tensional Strength Concrete with Various Admixtures
Autor: Hadi Barghlame, M. A. Lotfollahi-Yaghin, Mehdi Mohammad Rezaei
In this paper, the effect of admixtures on the tensional strength of concrete in Urmia-lake water have been investigated. We made different types of concretes with the ratio of w/c and replaced different percentages of micro-silica, air-entraining, s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0135ab68696b4c107a41f6f215c04a2a
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9
One Typical Jacket Platform'S Reactions In Front Of Sea Water Level Variations
Autor: M. A. Lotfollahi Yaghin., R. Rezaei.
Demanding structural safety under various loading conditions, has focused attention on their variation and structural elements behavior due to these variations. Jacket structures are designed for a specific water level (LAT). One of the important iss
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0935b17b6912cd21046f7185d91c8453
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