取水管付き係留浮体の挙動に関する研究

概要

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This paper presents dynamic behaviors of a deep water utilization system composed of a 2 point moored barge equipped with machineries and a cold water pipe (CWP) attached to the barge. Dynamic behaviors of the floating barge of the present scale and the CWP are mutually affected by each other. The dynamic behaviors were investigated in both numerical calculations and full scale experiments. A full scale system was tested at Toyama bay in Japan Sea of about 300 m water depth in the summer season of 1989 and 1990. Measurements were performed for motions of the barge, tensions of mooring lines and CWP behaviors. Motions of the floating barge in waves are calculated including the effects of CWP. Dynamic behaviors of the CWP in the real sea are calculated using the discretized Lagrange's equation in the time domain. It is assumed that the CWP is excited only by the floating barge. The present numerical scheme for the CWP can be applied to the dynamic calculations of various types of line structures.
社団法人日本船舶海洋工学会の論文