THE EFFECT OF SEMI-ACTIVE CONTROLLER IN SIRRI JACKET SEISMIC VIBRATION CONTROL UNDER KOBE EARTHQUAKE

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

TAGHIKHANY T.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF MARINE SCIENCE AND ENGINEERING Year:2013 | Volume:3 | Issue:2 Page(s): 77-84

Download Full-Text

View:

406

Download:

158

Cites:

Information Journal Paper

Title

THE EFFECT OF SEMI-ACTIVE CONTROLLER IN SIRRI JACKET SEISMIC VIBRATION CONTROL UNDER KOBE EARTHQUAKE

Author(s)

TAGHIKHANY T. | Issue Writer Certificate

Keywords

CELLAR DECK

DYNAMIC RESPONSE REDUCTION

KOBE EXCITATION

PERSIAN GULF

Abstract

The Sirri jacket offshore platform was designed and installed in PERSIAN GULF of Iran in 1975 and has been in service since that time. The importance of offshore structure's stability and the failure of this kind of structure during an earthquake in different active zones revealed that earthquake loading has to be considered. In this paper, Magneto rheological (MR) fluid dampers have been proposed as a powerful tool to control seismic vibration of platform. A combination of four MR dampers and six friction pendulum isolators on the joints of CELLAR DECK is applied for dynamic control of an existing steel jacket. In order to accurately evaluate the performance of Sirri jacket with MR dampers under Kobe seismic excitation, the platform numerically modeled in SACS software. The size of generated model with 198 degree-of-freedoms (DOFs) was dynamically reduced so as to be utilized in semi-active control algorithm. To this end, the stiffness, mass and damping matrices of the model has been reduced to the 25 DOFs model by programming in MATLAB software. The algorithm is used in this study for semi-active control of platform was H2/LQG. Comparison between dynamic response of the jacket with and without using semi-active controller showed a great difference in quantity of joints displacement and acceleration. As a consequence, CELLAR DECK joints displacement and acceleration reduced about 50% in average. The results of using semi-active MR dampers showed that the earthquake-induced vibrations can be effectively suppressed by the isolation layer with MR dampers.

Cites

No record.

References

No record.

Cite

APA: Copy

TAGHIKHANY, T.. (2013). THE EFFECT OF SEMI-ACTIVE CONTROLLER IN SIRRI JACKET SEISMIC VIBRATION CONTROL UNDER KOBE EARTHQUAKE. INTERNATIONAL JOURNAL OF MARINE SCIENCE AND ENGINEERING, 3(2), 77-84. SID. https://sid.ir/paper/328958/en

Vancouver: Copy

TAGHIKHANY T.. THE EFFECT OF SEMI-ACTIVE CONTROLLER IN SIRRI JACKET SEISMIC VIBRATION CONTROL UNDER KOBE EARTHQUAKE. INTERNATIONAL JOURNAL OF MARINE SCIENCE AND ENGINEERING[Internet]. 2013;3(2):77-84. Available from: https://sid.ir/paper/328958/en

IEEE: Copy

T. TAGHIKHANY, “THE EFFECT OF SEMI-ACTIVE CONTROLLER IN SIRRI JACKET SEISMIC VIBRATION CONTROL UNDER KOBE EARTHQUAKE,” INTERNATIONAL JOURNAL OF MARINE SCIENCE AND ENGINEERING, vol. 3, no. 2, pp. 77–84, 2013, [Online]. Available: https://sid.ir/paper/328958/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops