| 辽东湾JZ20—2海域海冰参数的概率分布 |
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| 引用本文： | 季顺迎,岳前进,等.辽东湾JZ20—2海域海冰参数的概率分布[J].海洋工程,2002,20(3):39-43,48. |
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| 作者姓名： | 季顺迎 岳前进 |
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| 作者单位： | 大连理工大学 工业装备结构分析国家重点实验室,辽宁 大连 116023 |
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| 基金项目： | 国家自然科学基金与中海石油渤海公司联合资助项目( 59739170) |
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| 摘 要： | 基于辽东湾JZ2 0 2海域 1996 2 0 0 0年 4个冬季的海冰定点观测资料和海冰数值模拟结果 ,对该海域的平整冰厚、冰速、冰向和压缩强度等海冰参数进行了概率分析 ,确定了各自的分布参数 ,并对冰速和冰向进行了联合概率分析。结果表明 :冰厚和冰速分别服从对数正态分布和瑞利分布 ,海冰压缩强度服从正态分布。计算结果可用于JZ2 0 2海域海洋结构可靠性设计和疲劳累积损伤分析的海冰参数 ,也可作为其邻近海域的参考资料
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| 关 键 词： | 疲劳海冰参数 概率分布 海冰模拟 |
| 文章编号： | 1005-9865(2002)03-0039-05 |
Probability distribution of sea ice fatigue parameters in JZ20-2 sea area of the Liaodong Bay |
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| JI Shun ying,YUE Qian jin,BI Xiang jun.Probability distribution of sea ice fatigue parameters in JZ20-2 sea area of the Liaodong Bay[J].Ocean Engineering,2002,20(3):39-43,48. |
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| Authors: | JI Shun ying YUE Qian jin BI Xiang jun |
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| Abstract: | The ice conditions of JZ20 2 sea area in the Liaodong Bay were measured and simulated with a sea ice numerical model in the past 4 winters from 1996 to 2000. Based on the measured and simulated data, the probability distributions of level ice thickness, ice velocity, ice drifting direction and ice compression strength were determined respectively, and the joint probability distribution of ice velocity and ice drifting direction was analyzed. It is shown that the ice thickness and the ice velocity satisfy with Lognormal distribution and Rayleigh distribution respectively, and that the ice compression strength obeys Normal distribution. The results can be applied to the cumulative damage analysis and probability design of offshore structure in the JZ20 2 sea area, and can also be adopted as the reference data for the adjacent area. |
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| Keywords: | sea ice fatigue parameter probability distribution sea ice simulation |
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