NDLI: Float-Off Operation of a Land-Built COT on Dual Transportation Barges: Time- vs. Frequency-Domain Analysis

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Chan, K. Yang Lee, D. H. Kim, M. H. Park, B. N. Yang, Y. T. Yoon, K. Y.
Copyright Year	2005
Abstract	In this paper, the float-off operation of a land-built crude oil tank (COT) loaded out and towed on launching dual-submersible barges is numerically simulated by a time-domain vessel-mooring-riser coupled dynamic analysis program with multiple floating bodies. The study is particularly focused on the maximum load prediction on connectors and the minimum gap prediction between barges and the COT. In case of simpler modeling, the time-domain simulation results are compared with frequency-domain results. Then, the time-domain model is run for more realistic situation with hawsers and mooring line. In hydrodynamic analysis, the interactions among the 3 floating bodies are fully taken into consideration. In the frequency-domain analysis, the connectors between barges are modeled by equivalent translational and rotational springs, the stiffness of which is estimated using Euler’s beam theory. In order to assess the possible occurrence of contact between COT and barges, the relative motions between barges and the COT at several points of interest were investigated.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	1065
Ending Page	1071
Page Count	7
File Format	PDF
ISBN	0791841952
DOI	10.1115/OMAE2005-67553
e-ISBN	0791837599
Volume Number	24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 1, Parts A and B
Conference Proceedings	ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
Language	English
Publisher Date	2005-06-12
Publisher Place	Halkidiki, Greece
Access Restriction	Subscribed
Subject Keyword	Euler-bernoulli beam theory Frequency-domain analysis Floating bodies Mooring Dynamic analysis Vessels Submersibles Transportation systems Modeling Stress Pipeline risers Simulation results Crude oil Stiffness Risers (casting) Springs
Content Type	Text
Resource Type	Article

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