JOURNAL BROWSE
Search
Advanced SearchSearch Tips
An Experimental Investigation on Reduction of List Angle of a Semi-submersible Platform in Head Sea
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An Experimental Investigation on Reduction of List Angle of a Semi-submersible Platform in Head Sea
Kim, Nam Woo; Nam, Bo Woo; Choi, Young Myung; Hong, Sa Young;
  PDF(new window)
 Abstract
This study consists of an experimental investigation of the reduction of the second-order roll motion of a semi-submersible platform in head sea conditions by adding hull damping. The second-order heave drift force and roll drift moment are known to be the main triggers that induce the list angle (Hong et al., 2010). Hong et al. (2013) used numerical calculations to show the possibility of reducing the list angle by changing the pontoon shape and adding a damping device on the hull. One of their findings was that the reduction in the list angle due to the increase in pontoon surface damping was significant. A series of model tests were carried out with a 1:50 scaled model of semi-submersible at the KRISO wave basin. The experiments indicated that adding damping on the hull surface effectively suppressed the list angle.
 Keywords
List angle;semi-submersible;model test;nonlinear roll;reduction of list angle;
 Language
English
 Cited by
 References
1.
Hong, SY, Nam, BW, Kim, JH, Hong, SW, Kim, YS (2010a). "Secon-order motion characteristics of a semi-submersible platform in waves," Proc 11th PRADS, pp. 266-274

2.
Hong, SY, Nam, BW, Kim, NW and Cho, YS (2013). "Investigation of Nonlinear Roll Motion Characteristics of a Shallow Draft Semi-submersible" Proc 13th ISSW, pp28-35

3.
Voogt, AJ, Soles, JJ and Dijk, RV (2002). "Mean and Low Frequency Roll for Semi-submersibles in Waves", Proc 12th Int. Offshore and Polar Eng Conference, ISOPE, Kita-Kyushu, pp 379-384

4.
Voogt, AJ and Soles, JJ (2007). "Stability of Deepwater Drilling Semi Submersibles," Proc 10th Int Symp on Practical Design of Ships and Other Floating Structures, Houston