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The coupling mechanisms of offshore wind turbines with distributed spring boundaries under typical winds and waves
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Chunbo Wang1, Lei Qi1, Bo Qi1, Baihan Cao1, Yuguo Song2, Wenhua Wang2, Xin Li2
Renewable Energy Resources | 2025, 43(5) : 637 - 645
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Renewable Energy Resources | 2025, 43(5): 637-645
The coupling mechanisms of offshore wind turbines with distributed spring boundaries under typical winds and waves
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Chunbo Wang1, Lei Qi1, Bo Qi1, Baihan Cao1, Yuguo Song2, Wenhua Wang2, Xin Li2
Affiliations
  • 1 Clean Energy Branch CNOOC Energy Technology & Services Limited Tianjin 300451 China
  • 2 Dalian University of Technology Dalian 116024 China
Outline
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Because of offshore wind turbine fully coupling calculation software FAST V8 can not simulate pile soil interaction, the updated FAST V8 is introduced by distributed linear spring boundary constraint condition and the coupled motion equation of substructure is derived. A coupled numerical simulation model of rotor nacelle –hub towerpile foundation structure with distributed linear spring boundary condition is established. The dynamic characteristics of the base fixed boundary and distributed linear coupled spring boundary model under the combined action of wind and wave are analyzed. The results show that the time history and frequency domain responses of the tower top displacement and the base bending moment change significantly, especially for the secondorder frequency of the structure. At the same time, it can be observed that the distribution spring boundary constraint condition has a more obvious effect on low wind speeds, while the fixed boundary constraint condition model has a more significant effect on high wind speeds.

offshore wind turbines  /  distributed spring  /  dynamic response  /  coupling mechanism
Chunbo Wang, Lei Qi, Bo Qi, Baihan Cao, Yuguo Song, Wenhua Wang, Xin Li. The coupling mechanisms of offshore wind turbines with distributed spring boundaries under typical winds and waves[J]. Renewable Energy Resources, 2025 , 43 (5) : 637 -645 .
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Article Info
  • Receive Date：2023-10-15
  • Online Date：2025-07-16
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  • Received：2023-10-15
Funding
Affiliations
    1 Clean Energy Branch CNOOC Energy Technology & Services Limited Tianjin 300451 China
    2 Dalian University of Technology Dalian 116024 China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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