| 小直径单立柱上的波浪荷载研究 |
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| 引用本文： | 韩非非,张玮,陈恺.小直径单立柱上的波浪荷载研究[J].水道港口,2010,31(5):409-414. |
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| 作者姓名： | 韩非非 张玮 陈恺 |
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| 作者单位： | 河海大学港口海岸与近海工程学院,南京,210098 |
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| 基金项目： | "十一五"国家科技支撑计划 |
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| 摘 要： | 文章介绍了小直径单立柱上波浪荷载的计算方法,并以理论计算值作为验证资料,将数值计算值与理论计算值进行对比。研究发现,计算总时长和时间步长对计算结果影响较大。当计算总时长大于15倍波浪周期,时间步长为波浪周期的1/20时,计算结果误差较小,十分接近理论解。在计算深水区小直径立柱的波浪荷载时,立柱刚度过小会使计算结果不稳定,这时应增大立柱刚度计算。
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| 关 键 词： | 小尺度立柱 Morison方程 波浪力 计算时长 时间步长 刚度 |
Research of hydrodynamic forces on small diameter piles |
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| HAN Fei-fei,ZHANG Wei,CHEN Kai.Research of hydrodynamic forces on small diameter piles[J].Journal of Waterway and Harbour,2010,31(5):409-414. |
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| Authors: | HAN Fei-fei ZHANG Wei CHEN Kai |
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| Institution: | (College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | In this paper,the calculation methods of hydrodynamic forces on the small diameter piles were discussed,using the theoretical results as validation data to contrast the numerical value and theoretical value.The results show that the total time and time step have great influence on the calculation results.As long as the total time is larger than 15 times of wave period,and the time step is smaller than 1/20 of wave period,the calculation error is small,and the results are much closer to the theoretical solution.For piles in deep water,small stiffness will result in instability,and in this condition,the stiffness of the pile should be increased. |
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| Keywords: | small diameter pile Morison equation wave force computing time time step stiffness |
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