海上浮式风电机组塔筒优化方法研究.docx

海上浮式风电机组塔筒优化方法研究

摘要

随着全球能源结构向低碳化转型，海上浮式风电机组凭借其突破水深限制的技术特性，成为开发深远海优质风能资源的关键装备。本研究聚焦于海上浮式风电机组塔筒的优化问题，通过构建基于遗传算法的数值优化模型，并结合实验验证方法，系统性地开展了塔筒材料选择、结构设计及减重成本控制的多目标优化研究。研究表明，优化后的塔筒质量显著降低，结构刚度与疲劳寿命显著提升，单位质量制造成本大幅下降，实现了结构性能与经济性的协同优化。研究进一步通过多物理场耦合分析与实验验证，揭示了优化塔筒在复杂风浪载荷下的动力响应特性与疲劳寿命，验证了优化模型的可靠性。本研究提出的优化策略为海上浮式风电装备的商业化应用提供了重要技术支撑，对于推动全球海上风电产业的技术革新与产业升级具有重要意义。

关键词：海上浮式风电机组；塔筒优化；遗传算法；多目标优化；动态响应；疲劳寿命；经济性

ABSTRACT

Withtheglobalenergystructureshiftingtowardslow-carbon,offshorefloatingwindturbineshavebecomeakeyequipmentfordevelopinghigh-qualitywindenergyresourcesindeepanddistantseasduetotheirtechnologicalcharacteristicsofbreakingthroughwaterdepthlimitations.Thisstudyfocusesontheoptimizationproblemofoffshorefloatingwindturbinetower.Byconstructinganumericaloptimizationmodelbasedongeneticalgorithmandcombiningexperimentalverificationmethods,asystematicmulti-objectiveoptimizationresearchontowermaterialselection,structuraldesign,andweightreductioncostcontrolwascarriedout.Researchhasshownthattheoptimizedtowermassissignificantlyreduced,thestructuralstiffnessandfatiguelifearesignificantlyimproved,theunitmassmanufacturingcostissignificantlyreduced,andthesynergisticoptimizationofstructuralperformanceandeconomyisachieved.Thestudyfurtherrevealedthedynamicresponsecharacteristicsandfatiguelifeoftheoptimizedtowerundercomplexwindandwaveloadsthroughmultiphysicsfieldcouplinganalysisandexperimentalverification,andverifiedthereliabilityoftheoptimizationmodel.Theoptimizationstrategyproposedinthisstudyprovidesimportanttechnicalsupportforthecommercialapplicationofoffshorefloatingwindpowerequipment,andisofgreatsignificanceforpromotingtechnologicalinnovationandindustrialupgradingintheglobaloffshorewindpowerindustry.

Keywords:offshorefloatingwindturbines;Toweroptimization;Geneticalgorithm;Multiobjectiv