Development of Ice Load Generation Module to Evaluate Station-Keeping Performance for Arctic Floating Structures in Time DomainDevelopment of Ice Load Generation Module to Evaluate Station-Keeping Performance for Arctic Floating Structures in Time Domain
- Other Titles
- Development of Ice Load Generation Module to Evaluate Station-Keeping Performance for Arctic Floating Structures in Time Domain
- Authors
- 강현화; 이대수; Ji Su Lim; 이승재; 장진호; 정광효; Jaeyong Lee
- Issue Date
- 2020
- Publisher
- 한국해양공학회
- Keywords
- Dynamic positioning in ice; Time domain simulation; Station keeping performance evaluation; Arctic floating structures; Statistical ice load generation
- Citation
- 한국해양공학회지, v.34, no.6, pp 394 - 405
- Pages
- 12
- Journal Title
- 한국해양공학회지
- Volume
- 34
- Number
- 6
- Start Page
- 394
- End Page
- 405
- URI
- https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/7826
- DOI
- 10.26748/KSOE.2020.050
- ISSN
- 1225-0767
2287-6715
- Abstract
- To assess the station-keeping performance of floating structures in the Arctic region, the ice load should be considered along with other environmental loads induced by waves, wind, and currents. However, present methods for performance evaluation in the time domain are not effective in terms of time and cost. An ice load generation module is proposed based on the experimental data measured at the KRISO ice model basin. The developed module was applied to a time domain simulation. Using the results of a captive model test conducted in multiple directions, the statistical characteristics of ice loads were analyzed and processed so that an ice load corresponding to an arbitrary angle of the structure could be generated. The developed module is connected to commercial dynamic analysis software (OrcaFlex) as an external force input.
Station-keeping simulation in the time domain was conducted for the same floating structure used in the model test. The mooring system was modeled and included to reflect the designed operation scenario. Simulation results show the effectiveness of the proposed ice generation module and its application to station-keeping performance evaluation. Considering the generated ice load, the designed structure can maintain a heading angle relative to ice up to 4°. Station-keeping performance is enhanced as the heading angle conforms to the drift direction. It is expected that the developed module will be used as a platform to verify station-keeping algorithms for Arctic floating structures with a dynamic positioning system.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.