Browse > Article
http://dx.doi.org/10.5050/KSNVE.2013.23.1.025

Experiment on Sloshing of Annular Cylindrical Tank for Development of Attitude Control Devices of Floating Offshore Wind Turbines  

Seo, Myeongwoo (Graduate School of Mechanical Engineering, Pusan National University)
Jeong, Weuibong (School of Mechanical Engineering, Pusan National University)
Cho, Jinrae (Research and Development Institute, Midas IT Co. Ltd.)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.23, no.1, 2013 , pp. 25-33 More about this Journal
Abstract
The floating offshore wind turbines are usually exposed to the wave and wind excitations which are irregular and undirected. In this paper, the sloshing characteristics of annular cylindrical tank were experimentally investigated to reduce the structural dynamic motion of floating offshore wind turbine which is robust to the irregular change of excitation direction of wind and wave. The formula for the natural sloshing frequencies of this annular cylindrical tank was derived theoretically. In order to validate this formula, the shaking equipment was established and frequency response functions were measured. Two types of tank were considered. The first and second natural sloshing frequencies were investigated according to the depth of the water. It has been observed that between theoretical and experimental results shows a good agreement.
Keywords
Floating-type Offshore Wind Turbine; Annular Cylindrical Tank; Omnidirectional; Sloshing; Transfer Function; Natural Sloshing Frequency;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Min, K. W. and Park, E. C., 2009, Dynamic Characteristics of Tuned Liquid Column Dampers Using Shaking Table Test, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 6, pp. 620-627.   과학기술학회마을   DOI   ScienceOn
2 You, K. P., Ko, N. H., Kim, H. Y. and Kim, Y. M., 2004, The Performance Test of Tuned Liquid Damper to Rectangular and Circular, Proceedings of the Architectural Institute of Korea Autumn Conference, Vol. 24, No. 2, pp. 281-284.
3 You, K. P., 2005, The Vibration Performace Experiment of Tuned Liquid Damper and Tuned Liquid Column Damper, Architectural Institute of Korea, Vol. 21, No. 5, pp. 19-26.
4 Li, S. J., Li, G. Q., Tang, J. and Li, Q. S., 2002, Shallow Cylindrical Tuned Liquid Damper for Vibration Control of High-rise Structures, the Structural Design of Tall Buildings, Vol. 11, No. 4, pp. 295-308.   DOI   ScienceOn
5 Morsy, H., 2010, A Numerical Study of the Performance of Tuned Liquid Dampers, McMaster University, Hamilton, Canada.
6 Li, S. J., 1997, Shallow TLD Device and its Application for Vibration Control of Flexible High-rise Structures, PhD. dissertation, Wuhan University of Technology, Wuhan.
7 Faltinsen, O. M. and Timokha A. N., 2009, Sloshing, Cambridge University Press, New York.
8 Shin, H. K. and Kim, K. M., 2011, Motion Analysis of 5MW Floating Offshore Wind Turbine, The Korean Society of Ocean Engineers, Vol. 25, No. 5, pp. 64-68.
9 Bagbanci, H., Karmakar, D. and Guedes Soares, C., 2011, Dynamic Analysis of Spar-type Floating Offshore Wind Turbine, 2nd Proceeding of Coastal and Maritime Mediterranean Conference, Tangier, Morocco, pp. 407-412.
10 Soong, T. T. and Dargush, G. F., 1997, Passive Energy Dissipation Systems in Structural Engineering, John Wiley & Sons.
11 Heo, J. S., Park, E. C., Lee, S. H., Lee, S. K., Kim, H. J., Cho, B. H., Jo, J. S., Kim, D. Y. and Min, K. W., 2008, A Tuned Liquid Mass Damper(TLMD) for Controlling Bi-directional Responses of a Building Structure, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 3, pp. 345-355.   과학기술학회마을   DOI   ScienceOn