Chinese Journal of Ship Research, Volume. 18, Issue 6, 158(2023)

Quasi-static equivalent study on ice induced dynamic response of bow structure

Jin ZHAO1, Yanwu WANG2, Zhe LI3, and Guoqing FENG1
Author Affiliations
  • 1College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
  • 2Marine Design and Research Institute of China, Shanghai 200011, China
  • 3Beijing Institute of Structure and Environmental Engineering, Beijing 100076, China
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    Figures & Tables(15)
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    • Table 1. Ice load peak values

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      Table 1. Ice load peak values

      碎冰工况浮冰工况层冰工况
      区域$ {y_{\max }} $/MPa$ {x_{\max }} $/sS/s$ {y_{\max }} $/MPa$ {x_{\max }} $/sS/s$ {y_{\max }} $/MPa$ {x_{\max }} $/sS/s
      11.00×10−41.870.131.00×10−43.220.291.00×10−42.170.38
      21.00×10−42.120.231.00×10−42.230.319.10×10−32.390.11
      31.00×10−40.710.381.00×10−41.870.251.00×10−42.560.21
      41.00×10−41.890.411.203.210.382.003.390.23
      51.20×10−11.250.313.20×10−11.140.401.20×1002.390.18
      61.30×10−11.170.154.50×10−11.120.285.10×10−12.830.21
      78.00×10−21.100.324.00×10−22.590.803.80×10−11.870.22
      81.40×10−11.080.256.00×10−22.610.525.10×10−11.850.35
      97.00×10−21.970.177.90×10−12.650.465.70×10−10.760.32
    • Table 2. Material parameters

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      Table 2. Material parameters

      类型参数数值
      弹性参数杨氏模量/MPa2.1×105
      泊松比0.3
      塑性参数屈服强度/MPa390
      极限强度/MPa510~660
      材料密度$ \rho $/(t·mm−3)7.8×10−9
      应变率参数D/(s−1)40.4
      q/(s−1)5
    • Table 3. Dynamic load maximum response summary

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      Table 3. Dynamic load maximum response summary

      类型${\sigma _{{\rm{dynamic}}} }$/MPa区域应变率/s−1最大响应时刻/t
      碎冰49.8560.000 51.08
      浮冰277.3840.002 63.28
      层冰450.8740.004 33.16
    • Table 4. Instantaneous ice loading

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      Table 4. Instantaneous ice loading

      类型区域载荷/MPa
      碎冰50.071
      60.017
      70.065
      80.142
      浮冰41.184
      层冰42.000
    • Table 5. Summary of static response results

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      Table 5. Summary of static response results

      类型${\sigma _{{\rm{static}} - p} }$/MPa${\sigma _{{\rm{static}} - t} }$/MPa区域
      碎冰42.220.36
      浮冰210.0206.04
      层冰350.0346.04
    • Table 6. Dynamic and static conversion coefficient

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      Table 6. Dynamic and static conversion coefficient

      类型${\sigma _{{\rm{static}} - p} }$/MPa${\sigma _{{\rm{static}} - t} }$/MPa${\sigma _{{\rm{dynamic}}} }$/MPa$ {f_1} $$ {f_1}^\prime $
      碎冰42.220.349.851.182.45
      浮冰210206277.381.321.35
      层冰350346450.871.291.30
    • Table 7. Summary of dynamic and static transformation results

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      Table 7. Summary of dynamic and static transformation results

      类型应变率/s−1$[{\sigma _{{\rm{dynamic}}} }]$/MPa$ {f_1} $$ {f_2} $$ {f_3} $
      碎冰0.0005430.701.181.071.10
      浮冰0.0026446.591.321.151.15
      层冰0.0043452.581.291.121.16
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    Jin ZHAO, Yanwu WANG, Zhe LI, Guoqing FENG. Quasi-static equivalent study on ice induced dynamic response of bow structure[J]. Chinese Journal of Ship Research, 2023, 18(6): 158

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    Paper Information

    Category: Ship Structure and Fittings

    Received: Sep. 8, 2022

    Accepted: --

    Published Online: Mar. 21, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.03074

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