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Citation:
　Tabeshpour Mohammad Reza,Fatemi Dezfouli Mani,Dastan Diznab Mohammad Ali,et al.Response Spectrum Method for Extreme Wave Loading With Higher Order Components of Drag Force[J].Journal of Marine Science and Application,2017,(1):27-32.[doi:10.1007/s11804-017-1397-7]
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Response Spectrum Method for Extreme Wave Loading With Higher Order Components of Drag Force

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Title:
Response Spectrum Method for Extreme Wave Loading With Higher Order Components of Drag Force
Author(s):
Tabeshpour Mohammad Reza1;  Fatemi Dezfouli Mani2;  Dastan Diznab Mohammad Ali1;  Mohajernasab Saied1;  Seif Mohammad Saied1
Affilations:
Author(s):
Tabeshpour Mohammad Reza1;  Fatemi Dezfouli Mani2;  Dastan Diznab Mohammad Ali1;  Mohajernasab Saied1;  Seif Mohammad Saied1
1. Center of Excellence in Hydrodynamics and Dynamics of Marine Vehicles, Mechanical Engineering Department, Sharif University of Technology, Tehran, Iran;
2. Department of Marine Industries, Science and Research Branch, Islamic Azad University, Tehran, Iran
Keywords:
offshore structure design; response spectrum method; wave analysis; Morison equation; higher order components; drag force; wave loading; extreme wave
分类号:
-
DOI:
10.1007/s11804-017-1397-7
Abstract:
Response spectra of fixed offshore structures impacted by extreme waves are investigated based on the higher order components of the nonlinear drag force. In this way, steel jacket platforms are simplified as a mass attached to a light cantilever cylinder and their corresponding deformation response spectra are estimated by utilizing a generalized single degree of freedom system. Based on the wave data recorded in the Persian Gulf region, extreme wave loading conditions corresponding to different return periods are exerted on the offshore structures. Accordingly, the effect of the higher order components of the drag force is considered and compared to the linearized state for different sea surface levels. When the fundamental period of the offshore structure is about one third of the main period of wave loading, the results indicate the linearized drag term is not capable of achieving a reliable deformation response spectrum.

References:

Borgman LE, 1967. Spectral analysis of ocean wave forces on piling (Coastal engineering conference in Santa Barbara, California, October 1965). Journal of the Waterways and Harbors Division, 93(2), 129-156.
Hu S-LJ, Mandato JM, 1991. Design response spectra for offshore structures. The First International Offshore and Polar Engineering Conference, Edinborugh, Scotland, 270-277.
Journee JM, Massie W (2001). Offshore hydrodynamics. Delft University of Technology, 4, 38.
Morison J, Johnson J, Schaaf S, 1950. The force exerted by surface waves on piles. Journal of Petroleum Technology, 2(05), 149-154.
Naess A, Yim SC, 1996. Stochastic response of offshore structures excited by drag forces. Journal of Engineering Mechanics, 122(5), 442-448.
Tung C, 1986. A study of response and response spectra of offshore structures to regular waves. Applied ocean research, 8(1), 38-41.
Veletsos A, Hahn G, Bordinhao R, 1983. Response spectrum approach to design for waves. Recent Advances in Engineering Mechanics and Their Impact on Civil Engineering Practice, 295-298.
Zheng XY, Liaw CY, 2004. Response spectrum estimation for fixed offshore structures with inundation effect included:a Price’s theorem approach. Journal of Offshore Mechanics and Arctic Engineering, 126(4), 337-345.
DOI:10.1115/1.1834623

Memo

Memo:
Received date:2016-06-10;Accepted date:2016-09-05。
Corresponding author:Tabeshpour Mohammad Reza,Email:tabesh_mreza@yahoo.com
Last Update: 2017-03-25