A method for intermediate flooding and sinking simulation of a damagedfloater in time domain

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/473720.do
DOI
10.1016/j.jcde.2016.09.005
Title
A method for intermediate flooding and sinking simulation of a damagedfloater in time domain
Description
This work was partially supported by (a) Brain Korea 21 Plus Program(Education and Research Center for Creative Offshore Plant Engineers ofSeoul National University) funded by the Ministry of Education, Republicof Korea, (b) The National Research Foundation of Korea (NRF) grantfunded by the Ministry of Education, Science and Technology (No.2016R1A2B4016253), and (c) Research Institute of Marine systemsEngineering of Seoul National University, Republic of Korea.
abstract
When a floater such as a ship or an offshore structure is damaged in the sea, it is necessary to determine whether the floater will sink in water or not. If the floater will sink, the time to sink should be estimated to make an emergency plan. In addition, causes of the flooding should be investigated carefully. For this purpose, a method for performing intermediate flooding and sinking simulation of the damaged floater in time domain is proposed in this study. Overall process of the proposed method consists of several steps. In the first step, data of the damaged floater such as hull form and compartments are prepared. In the second step, physical characteristics of the floater such as the increased weight considering incoming water, the center of gravity, the changed buoyancy, and the center of buoyancy are calculated at every time step. In the third step, the quasi-static equilibrium position of the floater is calculated. The second and third steps are repeated until the floater reaches to sink or to be in equilibrium. As a result, the final condition of the floater can be determined. To check the feasibility of the proposed method, it is applied to a simple box problem. Finally, it is applied to intermediate flooding simulation of a barge-type damaged floater. Two cases having damaged holes of different locations are selected. As a result, it was confirmed that the floater can be in equilibrium or sink according to the damaged position. The time to be in equilibrium or the time to sink was estimated. (C) 2016 Society for Computational Design and Engineering. Publishing Servies by Elsevier.
provenance
Made available in Cube on 2018-09-28T10:27:05Z (GMT). No. of bitstreams: 0
language
English
author
Kim, Ju-Sung
Roh, Myung-Il
Ham, Seung-Ho
orcid
Ham, Seung-Ho/0000-0001-8226-6029
accessioned
2018-09-28T10:27:05Z
available
2018-09-28T10:27:05Z
issued
2017
citation
JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING(4): 1
issn
2288-4300
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/473720.do
Funder
교육부
Funding Program
BK21플러스사업(0.5)
Project ID
1345273965
Jurisdiction
Rep.of Korea
Project Name
Education and Research Center for Creative Offshore Plant Engineers
rights
openAccess
subject
Intermediate flooding
Simulation
Damaged floater
Quasi-staticequilibrium
Timedomain
type
article


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