Honeycomb structure protection device of an offshore wind turbine

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Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (10) : 215-222.

LIU Kunpeng,MIAO Weipao,WANG Yujin,LI Chun,YUE Xinzhi

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Abstract

In order to facilitate the transportation, installation and maintenance of wind turbines, offshore wind farms are mostly in busy waterways, resulting in a significant increase in the probability of offshore wind turbines being collided by ships. In order to enhance the anti-collision ability of offshore wind turbine, reduce the damage degree of collision area and improve its anti-risk performance, this paper proposes a new type of protection device with honeycomb structure characteristics. The explicit dynamic analysis software LS-DYNA was used to simulate the collision process between the 5000t ship and the tripod of the 4MW offshore wind turbine, and the difference between the new honeycomb structure protection device and the traditional solid structure protection device was studied. The results show that the new protective device with honeycomb structure can effectively prolong the contact time and reduce the contact force. Compared with the traditional solid protection device, the internal energy conversion capacity of the new device is increased by more than 15%, and the honeycomb structure plays a role in improving the internal energy conversion capacity. The honeycomb structure protection device has a good energy absorption and buffering effect, which can effectively reduce the internal energy and kinetic energy transferred to the wind turbine structure, reduce the foundation damage, and improve the safety of the offshore wind turbine with tripod.

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offshore wind turbine / honeycomb structure / collision / crashworthiness

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LIU Kunpeng,MIAO Weipao,WANG Yujin,LI Chun,YUE Xinzhi. Honeycomb structure protection device of an offshore wind turbine[J]. Journal of Vibration and Shock, 2024, 43(10): 215-222

References

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