STUDY ON THE ANTI-COLLISION CHARACTERISTICS OF ALUMINUM FOAM SANDWICH PLATE PROTECTION DEVICE IN OFFSHORE WIND TURBINE

The vigorous development of offshore wind energy and dense routes have increased the probability of collision between ships and wind turbines. Based on the nonlinear dynamics theory,the conceptual design of the foam aluminum sandwich structure protection device is proposed. To verify the advantages...

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Bibliographic Details
Published inJi xie qiang du Vol. 43; pp. 888 - 896
Main Authors ZHAO XinLei, LI Chun, HAN ZhiWei
Format Journal Article
LanguageChinese
Published Editorial Office of Journal of Mechanical Strength 01.01.2021
Subjects
Protective devices;Offshore wind turbine;Aluminum foam sandwich;Crash worthiness
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Summary:The vigorous development of offshore wind energy and dense routes have increased the probability of collision between ships and wind turbines. Based on the nonlinear dynamics theory,the conceptual design of the foam aluminum sandwich structure protection device is proposed. To verify the advantages and disadvantages of the proposed design protection performance,LS-DYNA is used to simulate the collision process of a 3000 t ship and a 5 MW tripod offshore wind turbine. At different ship speeds,the anti-collision performance of the sandwich protection device with the same thickness and different layers was analyzed. The results show that with the same thickness,the 5-layer protective structure has a significant effect on improving the safety of offshore wind turbines,and effectively suppress the dynamic response of the wind turbine tower top. Furthermore the 5-layer anti-collision performance is better than the 3-layer and 4-layer structures. The ship speed is 0. 5 m/s,1 m/s and 2 m/s,the initial kinetic energy
ISSN:1001-9669