Abstract The rapidly growing offshore wind industry is calling for more crew transfer vessels to deliver increasing number of minor maintenance tasks as about 75% of onshore wind turbine failures are related to the minor errors occurring in the electrical and power electronic systems of the turbines. The situation in offshore wind farms may be worse due to the wet, salty and corrosive air in offshore environments. Due to the limitations of small hull and deck spaces, there is difficulty to apply the proven motion stabilization techniques to wind farm crew transfer vessels. Consequently, the present crew transfer vessels have limited capability in providing safe transfer between the vessel and wind turbines, particularly in rough sea waves. To tackle this issue, a new motion stabilization technique is studied in this paper by using both numerical analysis and experimental testing approaches. Through investigating the vessel's motions under different wave conditions before and after applying the proposed technique, it is found that the heave, roll and pitch motions of the vessel, especially in its resonant frequency regions, have been successfully constrained after applying the proposed stabilizing technique. Moreover, the amount of motion reduction can be further improved through optimizing the size of stabilizers and their underwater distance.

中文翻译：

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一种稳定海上风电场船员转运船的经济有效措施研究

摘要 快速发展的海上风电行业需要更多的船员转运船来执行越来越多的小维护任务，因为大约 75% 的陆上风力发电机故障与涡轮机电气和电力电子系统中发生的小故障有关。由于海上环境中潮湿、咸味和腐蚀性空气，海上风电场的情况可能会更糟。由于船体和甲板空间较小的限制，很难将经过验证的运动稳定技术应用于风电场船员转运船。因此，当前的船员转运船在提供船只和风力涡轮机之间的安全转运方面的能力有限，特别是在波涛汹涌的海浪中。为了解决这个问题，本文通过数值分析和实验测试方法研究了一种新的运动稳定技术。通过研究应用所提出的技术前后不同波浪条件下船舶的运动，发现应用所提出的稳定技术后，船舶的升沉、横摇和纵摇运动，特别是在其共振频率区域，已被成功约束。此外，通过优化稳定器的尺寸和水下距离，可以进一步提高运动减少量。特别是在其谐振频率区域，在应用所提出的稳定技术后已成功地受到约束。此外，通过优化稳定器的尺寸和水下距离，可以进一步提高运动减少量。特别是在其谐振频率区域，在应用所提出的稳定技术后已成功地受到约束。此外，通过优化稳定器的尺寸和水下距离，可以进一步提高运动减少量。