基于海、空条件下支撑结构取向的海上风管桩设计优化

IF 3.6 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Maciej M. Mroczek, S. Arwade, M. Lackner
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引用次数: 1

摘要

摘要60年三腿海上风电导管架结构的定向 m水深,支持IEA 15 MW参考涡轮机已被评估用于优化导管架桩设计。考虑了马萨诸塞州海岸外的参考场地,包括特定地点的海洋气象条件和现实可行的岩土工程条件。使用三维有限元(FE)地面-结构模拟对土壤-结构相互作用进行建模,以获得等效泥线弹簧,随后将其用于非线性弹性模拟,考虑时域中极端海况的空气动力学和水动力载荷。与风向相反,导管架桩荷载对最大50年波浪方向敏感,这表明导管架方向应相对于主导波浪方向考虑。结果进一步表明,导管架方向对导管架桩的整体质量和最大埋深有很大影响,因此为降低项目成本和风险提供了重要机会。最后,这项研究强调了完整的全局模型行为(包括涡轮机和基础)的详细知识对于捕捉这种优化潜力的重要性,特别是由于风浪偏差对桩荷载的影响。在适当的设计阶段,涡轮机供应商和基础设计师之间的密切合作至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design optimization of offshore wind jacket piles by assessing support structure orientation relative to metocean conditions
Abstract. The orientation of a three-legged offshore wind jacket structure in 60 m water depth, supporting the IEA 15 MW reference turbine, has been assessed for optimizing the jacket pile design. A reference site off the coast of Massachusetts was considered, including site-specific metocean conditions and realistically plausible geotechnical conditions. Soil–structure interaction was modeled using three-dimensional finite-element (FE) ground–structure simulations to obtain equivalent mudline springs, which were subsequently used in nonlinear elastic simulations, considering aerodynamic and hydrodynamic loading of extreme sea states in the time domain. Jacket pile loads were found to be sensitive to the maximum 50-year wave direction, as opposed to the wind direction, indicating that the jacket orientation should be considered relative to the dominant wave direction. The results further demonstrated that the jacket orientation has a substantial impact on the overall jacket pile mass and maximum pile embedment depth and therefore represents an important opportunity for project cost and risk reductions. Finally, this research highlights the importance of detailed knowledge of the full global model behavior (both turbine and foundation) for capturing this optimization potential, particularly due to the influence of wind–wave misalignment on pile loads. Close collaboration between the turbine supplier and foundation designer, at the appropriate design stages, is essential.
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来源期刊
Wind Energy Science
Wind Energy Science GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-
CiteScore
6.90
自引率
27.50%
发文量
115
审稿时长
28 weeks
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