Reliable and efficient survivability assessment of floating wind turbines and the prevention measures in extreme sea waves near Japan's coast

• Project/Area Number: 25K08149
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 24020:Marine engineering-related
• Research Institution: Kyushu University
• Principal Investigator: 劉 盈溢 九州大学, 応用力学研究所, 助教 (30799127)
• Project Period (FY): 2025-04-01 – 2028-03-31
• Project Status: Granted (Fiscal Year 2025)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2027: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000); Fiscal Year 2026: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2025: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: floating wind turbine / extreme waves / time-domain simulation / spectral analysis / nonlinear phenomena

Outline of Research at the Start

Under harsh sea conditions, the survivability of floating energy systems is seriously threatened by extreme ocean waves. As conventional frequency-dependent models are no longer adequate for capturing the strongly nonlinear dynamic behavior of these floating systems, the present research aims to develop an effective and efficient methodology to address this issue and to explore possible prevention measures.