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上海理工大学 能源与动力工程学院,上海 200093
刘坤鹏,男,1999年生,湖北荆州人,硕士研究生;主要研究方向为海上风力发电;E-mail:asd15102706701@163.com。
李春,男,1963年生,北京人,博士,教授,博士研究生导师;主要研究方向为流体机械及工程、风能高效转换与应用及叶轮机械气动力学;E-mail:lichun_usst@163.com。
收稿日期:2023-12-18,
修回日期:2024-02-27,
纸质出版日期:2025-08-15
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刘坤鹏,缪维跑,王瑀琎,等. 海上风力机防护装置空心率影响研究[J]. 机械强度,2025,47(8):11-18.
LIU Kunpeng,MIAO Weipao,WANG Yujin,et al. Research on the influence of hollow ratio on protection device of offshore wind turbine[J]. Journal of Mechanical Strength,2025,47(8):11-18.
刘坤鹏,缪维跑,王瑀琎,等. 海上风力机防护装置空心率影响研究[J]. 机械强度,2025,47(8):11-18. DOI: 10.16579/j.issn.1001.9669.2025.08.002.
LIU Kunpeng,MIAO Weipao,WANG Yujin,et al. Research on the influence of hollow ratio on protection device of offshore wind turbine[J]. Journal of Mechanical Strength,2025,47(8):11-18. DOI: 10.16579/j.issn.1001.9669.2025.08.002.
由于运输、装机、并网及维修等需求,近海区域海上风电场建设往往无法远离周围繁忙的航道,海上风力机受船舶撞击的概率大幅提升。为分析海上风力机受船舶撞击时不同空心率防护装置性能及损伤情况,采用Ansys/Ls-Dyna软件模拟5 000 t前倾艏船舶以2.0 m/s速度与海上风力机碰撞过程,对比分析了空心率对Ogden橡胶、Mooney-Rivlin橡胶及泡沫铝防护装置抗撞性能的影响。结果表明, 随空心率的增大,泡沫铝材料防护装置冲击持续时间增大,接触力随之减小,橡胶材料则与之相反;随着空心率的降低,防护装置更类似于实心管,具有相对较小的最大凹陷深度;在超弹性能的影响下,橡胶材料凹陷深度在碰撞完成后相对泡沫铝材料更小,防护装置材料损伤更小;但支架区域内能占比逐渐提升,故在防护装置设计研究中需考虑空心率对腿部支架的影响。
Due to the needs of transportation
installation
grid connection
and maintenance
the construction of offshore wind farms in inshore areas often cannot be far from busy surrounding waterways
which significantly increases the probability of offshore wind turbines being impacted by ships. To analyze the performance and damage of different hollow ratios of protective devices when offshore wind turbines are hit by ships, the collision process of a 5000-ton bow-downward ship with an offshore wind turbine at a speed of 2.0 m/s was simulated using Ansys/Ls-Dyna. The influence of the hollow ratio on the anti-collision performance of Ogden rubber, Mooney-Rivlin rubber and Aluminum foam aluminum constitutive protective devices was studied and compared. The results show that with the increase of hollow ratio
the impact duration of aluminum foam protective devices increases
and the contact force decreases accordingly
while rubber materials show the opposite trend. As the hollow ratio decreases
the protective device is more similar to a solid tube
with a relatively smaller maximum indentation depth. Under the influence of hyperelastic properties
the indentation depth of rubber materials is smaller than that of aluminum foam after the collision is completed
and the material damage of the protective device is smaller. However
the proportion of internal energy in the support area gradually increases
so the influence of hollow ratio on the leg support needs to be considered in the design and research of protective devices.
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