Coupled mooring analyses for the wec-sim wave energy converter design tool

Senu Sirnivas, Yi Hsiang Yu*, Matthew Hall, Bret Bosma

*此作品的通信作者

研究成果: Conference contribution同行評審

20 引文 斯高帕斯(Scopus)

摘要

A wave-energy-converter-specific time-domain modeling method (WEC-Sim) was coupled with a lumped-mass-based mooring model (MoorDyn) to improve its mooring dynamics modeling capability. This paper presents a verification and validation study on the coupled numerical method. First, a coupled model was built to simulate a 1/25 model scale floating power system connected to a traditional three-point catenary mooring with an angle of 120 between the lines. The body response and the tension force on the mooring lines at the fairlead in decay tests and under regular and irregular waves were examined. To validate and verify the coupled numerical method, the simulation results were compared to the measurements from a wave tank test and a commercial code (OrcaFlex). Second, a coupled model was built to simulate a two-body point absorber system with a chain-connected catenary system. The influence of the mooring connection on the point absorber was investigated. Overall, the study showed that the coupling of WEC-Sim and the MoorDyn model works reasonably well for simulating a floating system with practical mooring designs and predicting the corresponding dynamic loads on the mooring lines. Further analyses on improving coupling efficiency and the feasibility of applying the numerical method to simulate WEC systems with more complex mooring configuration are still needed.

原文English
主出版物標題Ocean Space Utilization; Ocean Renewable Energy
發行者American Society of Mechanical Engineers (ASME)
ISBN(電子)9780791849972
DOIs
出版狀態Published - 2016
事件ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2016 - Busan, Korea, Republic of
持續時間: 19 6月 201624 6月 2016

出版系列

名字Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
6

Conference

ConferenceASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2016
國家/地區Korea, Republic of
城市Busan
期間19/06/1624/06/16

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