Study on crashworthiness of offshore wind turbines under different wind loads
Journal of Mechanical StrengthVol. 48, Issue 1, Pages: 150-158(2026)
作者机构:
上海理工大学 能源与动力工程学院,上海 200093
作者简介:
LI Chun, E-mail: lichun_usst@163.com
基金信息:
National Natural Science Foundation of China(52375193;52376204;52106262;52006148);Construction Project of Shanghai Institute for Non-Carbon-Based Energy Conversion and Utilization (Category IV Peak Discipline of Shanghai: Energy Science and Technology)
LIU Kunpeng,WANG Yujin,ZHAO Xinlei,et al. Study on crashworthiness of offshore wind turbines under different wind loads[J]. Journal of Mechanical Strength,2026,48(1):150-158.
LIU Kunpeng,WANG Yujin,ZHAO Xinlei,et al. Study on crashworthiness of offshore wind turbines under different wind loads[J]. Journal of Mechanical Strength,2026,48(1):150-158. DOI: 10.16579/j.issn.1001.9669.2026.01.019.
Study on crashworthiness of offshore wind turbines under different wind loads
Offshore wind turbines are exposed to the risk of collision with vessels
where the effect of wind loads cannot be ignored. However
existing studies tend to adopt steady-state wind loads
which are inconsistent with actual conditions.
Methods
2
By adopting transient wind loads that are more consistent with actual working conditions
the collision processes between three types of offshore wind turbines and vessels under various wind speeds and directions were simulated using the Ls-Dyna software
and the dynamic responses
crashworthiness
and their influencing factors of the wind turbine foundations during the collision were analyzed.
Results
2
The results show that the monopile foundation wind turbine exhibits the worst crashworthiness and the highest sensitivity to loads
while the jacket foundation wind turbine achieves the best overall crashworthiness. Compared with wind speed and direction
vessel speed has a more significant impact on the structural safety of wind turbines. When the vessel speed is not more than 4 m/s
wind turbines can still operate normally under the rated wind speed but with certain potential safety hazards. Once the vessel speed exceeds 4 m/s
the wind turbines will suffer severe structural damage. After a collision occurs
the kinetic energy of the wind turbine tower top increases with the increase of wind loads; the center of gravity of the tower top may deviate from the safe zone
leading to a risk of overturning. In addition
the wind turbine sustains the maximum structural damage when the vessel sails downwind
whereas the minimum structural damage occurs when the vessel sails upwind.
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