灯桩在风浪环境中水动力特性及其优化方案研究
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1.交通运输部南海航海保障中心;2.天津大学海洋科学与技术学院

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U644

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国家自然科学基金(******);xx省xx基金(******);xxx项目(******)


Study on Hydrodynamic Characteristics of Light Beacons in Wind-Wave Environment and Optimization Scheme
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Southern Navigation Service Center, Maritime Safety Administration

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    摘要:

    为分析灯桩在风浪环境下的水动力特性,并根据其应力集中点给出优化方案。通过VOF(volume of fluid)方法求解了灯桩表面在风浪中的压力分布,以及压力造成形变。结果表明:灯桩应力集中位置在灯桩中间支柱的根部,最大位移位置在灯桩顶端;据此研究了两种优化方案,斜柱支撑方案应力集中在支柱的顶部,比优化前减小32.2%,最大变形量在中部底座处,比优化前减小40.1%;端部加强方案应力集中在底部,比优化前减小0.08%,最大变形发生在灯桩顶部,与优化前相比减小了23.1%。可见支柱斜撑的灯桩结构可以有效的减小结构受到的应力强度,分散了灯桩其他部分受到的风浪的冲击,是更好的结构优化方案。

    Abstract:

    To analyze the hydrodynamic characteristics of light beacons in wind-wave environments and propose an optimization scheme based on stress concentration points, the VOF (volume of fluid) method was used to calculate the pressure distribution on the surface of the light beacon under wave and wind conditions and the resulting deformations. The results indicate that stress concentration occurs at the base of the central support of the light beacon, with the maximum displacement at the top of the light beacon. Two optimization schemes were investigated based on these findings. In the slanted support scheme, stress concentration shifted to the top of the support, reducing by 32.2% compared to before optimization. The maximum deformation was at the base in the middle, a 40.1% reduction compared to before optimization. In the end-strengthened scheme, stress concentrated at the bottom, with a reduction of 0.08% compared to before optimization, while the maximum deformation was at the top of the light beacon, which was reduced by 23.1% compared to before optimization. It is evident that the light beacon structure with slanted supports can effectively reduce stress intensity and disperse the impact of wind and waves on other parts of the light beacon, representing a better structural optimization scheme.

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岳志伟,范海燕,袁靖周,等. 灯桩在风浪环境中水动力特性及其优化方案研究[J]. 科学技术与工程, , ():

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  • 收稿日期:2024-04-29
  • 最后修改日期:2024-05-24
  • 录用日期:2024-06-05
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