Numerical simulation of monopile foundation for offshore wind turbine subject to ship impact

HAO Er-tong;LIU Chun-guang;LIU Yingzhou

Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (3) : 7-13.

PDF(2310 KB)
PDF(2310 KB)
Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (3) : 7-13.
论文

Numerical simulation of monopile foundation for offshore wind turbine subject to ship impact

  • HAO Er-tong1 ,LIU Chun-guang1 , LIU Yingzhou2
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Abstract

There is no relevant specification and damage assessment criterion of offshore wind turbine subject to ship impact in our country now, taking a domestic offshore wind turbine with monopile foundation as example, the process of an offshore wind turbine stricken by a ship were analyzed by using LS-DYNA from the perspective of energy variation, the maximum collision-force and response of offshore wind turbine, and damage rate of area assessing extent of damage for offshore wind turbine was proposed. Results show that the maximum collision-force increased linearly with increasing one third power of quality, velocity and sine of collision angle of ship if initial kinetic energy of ship respectively is no more than about 35 MJ, 35 MJ, 25 MJ, but the linear relationship is not obvious when exceeding, and damage rate of area can reasonably reflect the damaged area and area size of monopile foundation.

Key words

offshore wind turbine / monopile foundation / collision-force / damage rate of area / numerical simulation

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HAO Er-tong;LIU Chun-guang;LIU Yingzhou. Numerical simulation of monopile foundation for offshore wind turbine subject to ship impact[J]. Journal of Vibration and Shock, 2015, 34(3): 7-13
PDF(2310 KB)

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