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 Abdolrahim Taheri,Ehsan Shahsavari.Time History Dynamic Analysis of a New Constructed Offshore Jacket Platform in Persian Gulf Due to Random Waves[J].Journal of Marine Science and Application,2019,(3):372-379.[doi:10.1007/s11804-019-00098-2]
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Time History Dynamic Analysis of a New Constructed Offshore Jacket Platform in Persian Gulf Due to Random Waves


Time History Dynamic Analysis of a New Constructed Offshore Jacket Platform in Persian Gulf Due to Random Waves
Abdolrahim Taheri Ehsan Shahsavari
Abdolrahim Taheri Ehsan Shahsavari
Department of Mechanical Engineering, Petroleum University of Technology, Abadan, Iran
Offshore platformsWeibull distributionWater surface simulationTime history analysisDynamic amplification factorPersian Gulf
API RP2AWSD is a design code in practice for design of jacket platforms in the Persian Gulf but is based on the Gulf of Mexico environmental condition. So for the sake of using this code for the Persian Gulf, it is better to perform a calibration based on this specific region. Analysis and design of jacket platforms based on API code are performed in a static manner and dynamic analysis is not recommended for such structures. Regarding the fact that the real behavior of the offshore jacket platforms is a dynamic behavior, so in this research, dynamic analysis for an offshore jacket platform in the Persian Gulf under extreme environmental condition is performed using random time domain method. Therefore, a new constructed offshore jacket platform in the Persian Gulf is selected and analyzed. Fifteen, 1-h storm, simulations for the water surface elevation is produced to capture the statistical properties of extreme sea condition. Time series of base shear and overturning moment are derived from both dynamic and static responses. By calculating the maximum dynamic amplification factor (DAF) from each simulation and fitting the collected data to Weibull distribution, the most probable maximum extreme (MPME) value for the DAF is achieved. Results show that a realistic value for DAF for this specific platform is 1.06, which is a notable value and is recommended to take into practice in design of fixed jacket platform in the Persian Gulf.


Aarland Y (2014) Time-domain simulation of marine structures in irregular seas. MSc thesis. Norwegian University of Science and Technology
Abu Husain MK, Mohd Zaki NI, Johari MB, Najafian G (2016) Extreme response prediction for fixed offshore structures by Monte Carlo time simulation technique. 35th International Conference on Ocean, Offshore and Arctic Engineering, Busan, Korea. https://doi.org/10.1115/OMAE2016-54200
American Petroleum Institute (API) (2000) Recommended practice for planning, designing and constructing fixed offshore platformsworking stress design. 21st edn. In:API-RP-2A-WSD. Washington DC
Anagnostopoulos SA (1982) Dynamic response of offshore platforms to extreme waves including fluid-structure interaction. Eng Struct 4(3):179-185. https://doi.org/10.1016/0141-0296(82)90007-4
Asgarian B, Mohebbinejad A, Soltani RH (2004) Simplified method to assess dynamic response of jacket type offshore platforms subjected to wave loading. 23rd International Conference on Offshore Mechanics and Arctic Engineering, 685-692. https://doi.org/10.1115/OMAE2004-51383
Azarhoushang A, Nikraz H (2010) Nonlinear water-structure interaction of fixed offshore platform in extreme storm. 20rd International Offshore and Polar Engineering Conference
Baarholm GS, Johansen A, Birknes J, Haver S (2013) Estimation of equivalent dynamic amplification factor (EDAF) on a jacket structure. 32nd International Conference on Ocean, Offshore and Arctic Engineering. https://doi.org/10.1115/OMAE2013-10085
Chang MT, Tung CC (1990) An approximate method for dynamic analysis of offshore structures to wave action. Eng Struct 12(2):120-123. https://doi.org/10.1016/0141-0296(90)90017-M
Dean RG, Dalrymple RA (1991) Water wave mechanics for engineers and scientists. World Scientific Publishing Co Pte Ltd, Singapore
Greeves EJ, Jukui BH, Sliggers PGF (1996) Evaluating jack-up dynamic response using frequency domain methods and the inertial load set technique. Mar Struct 9(1):101-128. https://doi.org/10.1016/0951-8339(95)00006-R
Hafez KA, Aboul-Fadl W, Leheta HW (2012) Comparative dynamic response analysis of a fixed offshore platform using deterministic and spectral wave approaches. 31st International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil, 525-533. https://doi.org/10.1115/OMAE2012-83845
Karunakaran D, Baerheim M, Spidsore N (1998) Measure and simulated dynamic response of a jacket and a large jack-up platform in North Sea. Offshore Technology Conference, Houston, Texas. https://doi.org/10.4043/8827-MS
Lima ECP, Landau L, Ebecken NFF, Ellwanger GB, Federal U, De Janeiro R (1985) Nonlinear dynamic analysis of a jacket-type platform by Ritz mode superposition method. Offshore Technology Conference, Houston, Texas https://doi.org/10.4043/5030-MS
Naess A, Gaidai O, Haver S (2007) Efficient estimation of extreme response of drag-dominated offshore structures by Monte Carlo simulation. Ocean Eng 34(16):2188-2197. https://doi.org/10.1016/j.oceaneng.2007.03.006
Sadeghi K (2007) An overview of design, analysis, construction and installation of offshore petroleum platforms suitable for Cyprus oil/gas fields. J Soc Appl Sci 2(4):1-16


Corresponding author:Abdolrahim Taheri,rahim.taheri@put.ac.ir
Last Update: 2019-09-18