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http://dx.doi.org/10.5574/KSOE.2016.30.2.091

Experimental Study on Elastic Response of Circular Cross-section Slender Body to Forced Oscillation, Waves, and Current  

Park, Ji-won (Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University)
Lee, Seung-Jae (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Jo, Hyo-Jae (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Hwang, Jae-Hyuk (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Han, Sung-Hoon (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Ocean Engineering and Technology / v.30, no.2, 2016 , pp. 91-99 More about this Journal
Abstract
The global demand for oil and natural gas has increased, and resource development is moving to the deep sea. Floating and flexible offshore structures such as semi-submersible, spar, and FPSO structures have been widely used. The major equipment of floating structures is always exposed to waves, currents, and other marine environmental factors, which cause structural damage. Moreover, flexible risers are susceptible to an exciting force due to the motion of the floating body. The inline and transverse responses from the three-dimensional behavior of a floating structure occur because of various forces. Typical risers are made of steel pipe and applied in the oil and gas development field, but flexible materials such as polyethylene are suitable for OTEC risers. Consequently, the optimal design of a flexible offshore plant requires a dynamic behavior analysis of slender bodies made of the different materials commonly used for offshore flexible risers. In this study, a three-dimensional motion measurement device was used to analyze the displacements of riser models induced by external force factors, and forced oscillation of a riser was linked to forced oscillation under a steady flow and regular wave condition.
Keywords
Slender cylinder; Model test; Forced oscillation; Regular wave; Uniform flow;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Blevins, R.D., 1990. Flow-Induced Vibration. 2nd Edition. Van Nostrand Reinhold, New York.
2 Chakrabarti, S.K., 1987. Hydrodynamics of Offshore Structures. 1st Edition, CBI Industries, Plainfield.
3 Chen, Y., Chai, Y.H., Li, X., Zhou, J., 2009. An Extraction of the Natural Frequencies and Mode Shapes of Marine Risers by the Method of Differential Transformation. Computers and Structures, 87, 1384-1393.   DOI
4 Chucheepsakkul, S., Huang, T., Laohapotjanart, P., 1995. Effect of Axial Defomation on the Equilibrium Configurations of Marine Cables. Proceedings of the Fifth International Offshore and Polar Engineering Conference, Hague Netherlands, 224-248.
5 Hong, Y.P., Koterayama, W., 2004. An Experimental and Numerical Study on Dynamics of a Flexible Marine Riser. Proceedings of the Annual Autumn Meeting - The Society of Naval Architects of Korea, Sancheong Korea, 652-661.
6 Hong, Y.P., Nakamura, M., Koterayama, W., 2002. An Experimental and Numerical Study on Dynamics of Flexible Free Hanging Riser. Proceedings of The Fifth International Society of Offshore and Polar Engineers Pacific/Asia Offshore Mechanics Symposium, Daejeon Korea, 131-137.
7 John W., 2009. Global Offshore Prospects. [Online] Available at: [Accessed 27 Jan. 2014].
8 Jung, D.H., 1999. A Study on Three Dimensional Structural Analysis for Marine Rigid Riser by Finite Element Method. Master's thesis, Busan Korea.
9 Jung, D.H., Kim, H.J., Park, H.I., 2004. A Study on the Behavior of Flexible Riser for Upwelling Deep Ocean Water by a Numerical Method. Journal of Ocean Engineering and Technology, 18(4), 15-22.
10 Lee, S.J., Kang, D.H., Jo, H.J., Shin, D.R., 2013. A Study of Behavior of Slender Bodies in Waves. Journal of Ocean Engineering and Technology, 27(3), 29-35.   DOI
11 Park, H.I., Hong, Y.P., Nakamura, M., Koterayama, W., 2002. An Experimental Study on Transverse Vibrations of A Highly Flexible Free-Hanging Pipe in Water. Proceedings of The Twelfth International Offshore and Polar Engineering Conference, Kitakyushu Japan, 199-206.
12 Patel, M.H., 1989. Dynamic of Offshore Structure. 1st Edition, Butter worths, London.
13 Sarpkaya, T., Isaacson, M., 1981. Mechanics of Wave Forces on Offshore Structures. 1st Edition, Van Nostrand Reinhold, New York.