Chinese Journal of Ship Research, Volume. 18, Issue 6, 66(2023)

Coupled dynamic response characteristics of integrated system combining semi-submersible wind turbine and fish farming cage under wind, wave and current actions

Shijie XU1...2, Zhengshun CHENG1,2, Lijun YANG1, and Qun CAO12 |Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2SJTU Yazhou Bay Institute of Deepsea Science and Technology, Shanghai Jiao Tong University, Sanya 572024, China
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    Figures & Tables(16)
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    • Table 1. Main parameters of the SJTU-SPIC floater[9]

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      Table 1. Main parameters of the SJTU-SPIC floater[9]

      参数数值
      中央立柱高度/m46.0
      中央立柱直径/m8.3
      上方侧柱高度/m18.8
      下方侧柱高度/m20.0
      侧柱边长/m9.0
      中央立柱与侧柱顶端距离/m50.0
      中央立柱与侧柱底端距离/m40.0
      浮筒高度/m7.0
      斜撑长度/m42.1
      斜撑直径/m2.0
      干舷/m15.0
      吃水/m30.0
      排水量/kg1.6×107
    • Table 2. Main parameters of the fish farming cage

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      Table 2. Main parameters of the fish farming cage

      参数数值
      上部竖向杆件高度/m11.0
      上部横向杆件长度/m78.8
      下部倾斜杆件高度/m20.0
      下部横向杆件长度/m61.5
      底部横向杆件长度/m26.0
      杆件直径/m1.2
      杆件厚度/m0.02
      中央立柱距网箱上部最大距离/m45.5
      中央立柱距网箱下部最大距离/m35.5
      养殖水体积/ m34.2×104
    • Table 3. Material parameters of the mesh clothing

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      Table 3. Material parameters of the mesh clothing

      参数数值
      密实度0.12
      流速衰减因子0.7
      网衣直径/m0.025
      线密度/(kg·m−1)1.5
      杨氏模量/MPa400
    • Table 4. Main parameters of the mooring system

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      Table 4. Main parameters of the mooring system

      参数数值
      锚链数量6
      每组锚链间角度/(°)120
      相邻锚链间角度/ (°)5
      导缆孔高度/m15
      导缆孔到原点水平距离/m54.5
      锚点深度/m−60
      锚点到原点水平距离/m498
      锚链长度/m465
      锚链外径/m0.095
      铁链湿重/(kg·m−11.9×102
      抗拉压刚度(EA)/ kN7.788×105
      每根锚链上重块数量/个10
      每个重块重量/kg3.8×103
      重块位置/m180−15−315
      预张力/N4.78×105
      破断张力/N9×106
    • Table 5. Environmental conditions

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      Table 5. Environmental conditions

      工况有义波高/m谱峰周期/sγ流速/(m·s−1风速/(m·s−1湍流度备注
      LC13.88.32.4仅波浪
      LC23.88.32.40.6浪流联合
      LC33.88.32.411.4风浪联合
      LC43.88.32.40.611.4风浪流联合
      LC53.88.32.40.611.40.1风浪流联合(湍流风)
      LC63.88.32.40.69.00.1风浪流联合(湍流风)
      LC73.88.32.40.614.00.1风浪流联合(湍流风)
    • Table 6. Statistics of natural period and dimensionless damping coefficients of the SJTU-SPIC semi-submersible wind turbine obtained in static water attenuation test and numerical simulation

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      Table 6. Statistics of natural period and dimensionless damping coefficients of the SJTU-SPIC semi-submersible wind turbine obtained in static water attenuation test and numerical simulation

      运动方向静水衰减试验数值仿真固有周期误差/%阻尼系数误差/%
      固有周期/s阻尼系数固有周期/s阻尼系数
      纵荡113.250.108112.550.1050.622.78
      垂荡21.960.03321.500.0312.096.06
      纵摇27.890.06226.900.0583.556.45
    • Table 7. Time-domain statistics of motion response of both the semi-submersible wind turbine and the integrated system of the semi-submersible wind turbine with fish farming cage

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      Table 7. Time-domain statistics of motion response of both the semi-submersible wind turbine and the integrated system of the semi-submersible wind turbine with fish farming cage

      工况风机的纵荡/m风机+网箱集成系统的纵荡/m备注
      平均值最大值标准差平均值最大值标准差
      LC11.123.580.651.173.590.61仅波浪
      LC28.4611.520.7310.8514.160.94浪流联合
      LC37.299.980.747.529.840.73风浪联合
      LC412.2515.490.8813.7317.671.19风浪流联合
      LC512.1214.861.0013.6516.781.27风浪流联合(湍流风)
      工况风机的垂荡/m风机+网箱集成系统的垂荡/m备注
      平均值最大值标准差平均值最大值标准差
      LC10.000.550.13−0.020.580.14仅波浪
      LC2−0.060.460.13−0.100.520.16浪流联合
      LC3−0.230.420.18−0.270.540.30风浪联合
      LC4−0.350.350.22−0.410.440.27风浪流联合
      LC5−0.360.340.24−0.420.540.25风浪流联合(湍流风)
      工况风机的纵摇/(°)风机+网箱集成系统的纵摇/(°)备注
      平均值最大值标准差平均值最大值标准差
      LC1−0.500.170.23−0.520.130.23仅波浪
      LC2−2.40−1.670.26−3.09−2.140.34浪流联合
      LC35.049.432.835.018.982.58风浪联合
      LC43.207.072.652.997.103.51风浪流联合
      LC53.259.693.163.008.493.26风浪流联合(湍流风)
    • Table 8. Time domain statistics of mooring line tension response of both the semi-submersible wind turbine and the integrated system of the semi-submersible wind turbine with fish farming cage

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      Table 8. Time domain statistics of mooring line tension response of both the semi-submersible wind turbine and the integrated system of the semi-submersible wind turbine with fish farming cage

      工况风机的锚链#1张力响应/kN风机与网箱集成系统的锚链#1张力响应/kN备注
      平均值最大值标准差平均值最大值标准差
      LC1440.71490.6917.80439.33482.5317.20仅波浪
      LC2310.06328.619.08289.35311.8310.37浪流联合
      LC3242.27310.7333.16239.34310.6332.01风浪联合
      LC4209.17257.9525.63205.70323.8939.80风浪流联合
      LC5210.40339.6534.08206.52410.3849.42风浪流联合(湍流风)
      工况风机的锚链#4张力响应/kN风机与网箱集成系统的锚链#4张力响应/kN备注
      平均值最大值标准差平均值最大值标准差
      LC1482.53535.6812.91483.36545.6213.06仅波浪
      LC2707.75858.8635.17828.491057.5059.05浪流联合
      LC3946.811317.90177.65957.561323.60165.73风浪联合
      LC41312.021907.50252.651498.412304.90363.50风浪流联合
      LC51308.572026.50281.431493.762297.30377.30风浪流联合(湍流风)
    • Table 9. Satistics of the power output from both the semi-submersible wind turbine and the integrated system of semi-submersible wind turbine with fish farming cage

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      Table 9. Satistics of the power output from both the semi-submersible wind turbine and the integrated system of semi-submersible wind turbine with fish farming cage

      工况风机的发电功率/MW风机+网箱集成系统的发电功率/MW备注
      平均值最大值标准差平均值最大值标准差
      LC59.0210.001.228.8310.001.40额定风速
      LC65.417.871.135.538.581.16低于额定风速
      LC79.3810.001.059.1810.001.00高于额定风速
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    Shijie XU, Zhengshun CHENG, Lijun YANG, Qun CAO. Coupled dynamic response characteristics of integrated system combining semi-submersible wind turbine and fish farming cage under wind, wave and current actions[J]. Chinese Journal of Ship Research, 2023, 18(6): 66

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    Paper Information

    Category: Ship Design and Performance

    Received: Sep. 29, 2022

    Accepted: --

    Published Online: Mar. 21, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.03111

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