Model Test Study on Added Mass Coefficient of Four Buckets Foundation Ocean Platform

Abstract:

In this paper, the internal air pressure and bottom water pressure of the buckets, the acceleration of swaying, surging and heaving of platform were determined by the sensors fixed on the platform, as a naval bucket foundation platform for example. The motion rules of heave and sway of bucket foundations are studied with different drafts. The results of this test showed that the added mass coefficient of heave, roll and pitch are declined with the increase of the draft; the natural frequency of heave is constant with different drafts but the roll frequency and pitch frequency are consistent with the changes of the draft; the frequency of heave is larger than that of roll and pitch but the added mass coefficient of heave is lesser than that of roll and pitch.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 4728-4732
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.4728
• Online since: May 2011
• Authors: Hong Yan Ding, Xian Qing Liu, Jing Hua Diao, Pu Yang Zhang
• Keywords: Added Mass Coefficient, Bucket Foundation, Draft, Model Test, Stiffness Coefficient

References

[1] DING Hongyan, ZHANG Puyang: Estimation of heights of soil plug inside bucket foundations during suction penetration by deformable discrete element modeling, Transactions of Tianjin University, Vol. 13 (2007), pp.308-312.

[2] Ding Hongyan, Qi Lan, Xu Ji-zu: The bucket foundation platforms installed in shallow and ice drifting area, Journal of Cold Regions Engineering, Vol. 15 (2001), pp.211-218.

DOI: 10.1061/(asce)0887-381x(2001)15:4(211)

[3] Pinkster J A, Scholte EM: The behavior of a large air-supported Mob at sea.Marine Structures, Vol. 14(2001),pp.163-179.

DOI: 10.1016/s0951-8339(00)00044-7

[4] Malenica S. & Zalar M. An alternative method for linear hydrodynamics of air cushion supported floating bodies, 15th International Workshop on Water Waves and Floating Bodies, 2000.

[5] Thiagarajan K P, Michael T, Thomas M. Wave-induced motions of an air cushion structure in shallow water, Ocean Engineering, Vol. 33(2006),pp.1143-1160.

DOI: 10.1016/j.oceaneng.2005.05.015

[6] Bie she'an BIE She'an, LIWei, LI Zengzhi, Ren Zengjin,Ji Chunning. Experimental study on stability of breakwaters with penetrating box foundations. China Ocean Engineering, Vol. 17(2003), pp.71-82

[7] Ding Hongyan, Liu Jianhui. The study report of JZ-93 about the towing of the bucket foundation platform. Tianjin University(2006), pp.128-135.

[8] Li Zhongxian. Test Technology and Theory of Engineering Structures(Tianjin University Press, China 2004).