海上风力机防护装置布孔方式及性能研究

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (24) : 249-256.

论文

海上风力机防护装置布孔方式及性能研究

王瑀琎1，赵鑫磊1，岳新智1，李春1,2，岳敏楠1

作者信息 +

A study of the hole setting methods and performance of offshore wind turbine protection devices

WANG Yujin1, ZHAO Xinlei1, YUE Xinzhi1, LI Chun1,2, YUE Minnan1

Author information +

文章历史 +

摘要

海上风力机存在受船舶碰撞的风险隐患，一旦发生将导致风力机损伤甚至倒塌事故，造成严重经济损失，因此有必要对其进行防护设计以提高安全性。为此采用显示动力分析软件LS-DYNA，通过对防护装置设置通孔，研究孔数及相对角度对防护性能的影响。结果表明：设孔防护装置可延长船舶与风力机接触时间，强化能量转化效果，降低船舶回弹能量；三孔防护装置吸能效果最优，单孔与双孔结构设孔角度分别取50°、60°范围内，其吸能效果均优于无孔防护装置；在船艏撞击范围内设孔，可为橡胶材料提供额外变形空间，增强防护装置抗撞能力；多孔防护装置孔间材料承担主要变形吸能作用，合适的孔间距有助于提高防护性能；孔间距较小的防护装置能吸收较多能量，但易导致材料压溃失效。

Abstract

Offshore wind turbine are at risk of collision with ships, which will cause wind turbines to be damaged or even collapse , causing serious economic losses. Therefore, it is necessary to propose protective design to improve the safety. To this end, the explicit dynamic analysis software LS-DYNA is utilized to study the influence of the number of holes and the on the protection performance by setting via holes for the protection device. The simulation is based on the collision between a 5000 tons ship and a 4MW wind turbine equipped by protective device which has one hole or multiple holes with different relative angles. The results show that: The perforated protection device can prolong the contact time between the ship and the offshore wind turbine and enhance the energy conversion effect and consequently reduce the rebound energy of the ship; The energy absorption effect of the three-hole protection device is the best, the energy absorption effect of the single-hole and double-hole structure is better than that of the non-hole protection device when the hole angle is 50° and 60° respectively; The hole in the collision range of the bow can provide additional deformation space for the rubber material and improve the anti-collision ability of the protection device; The material between the holes of the porous protective device is responsible for the main deformation and energy absorption, and the appropriate hole spacing helps to improve the protective performance; The protective device with smaller hole spacing can absorb more energy, but it is easy to cause the material to fail.

导出引用

王瑀琎1，赵鑫磊1，岳新智1，李春1,2，岳敏楠1. 海上风力机防护装置布孔方式及性能研究[J]. 振动与冲击, 2023, 42(24): 249-256

WANG Yujin1, ZHAO Xinlei1, YUE Xinzhi1, LI Chun1,2, YUE Minnan1. A study of the hole setting methods and performance of offshore wind turbine protection devices[J]. Journal of Vibration and Shock, 2023, 42(24): 249-256

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