| 冰激锥体振动物理模拟实验 |
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| 引用本文： | 孔令刚,林皋,等.冰激锥体振动物理模拟实验[J].海洋工程,2002,20(1):24-28. |
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| 作者姓名： | 孔令刚 林皋 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家杰出青年基金资助项目 ( 5 972 5 919) |
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| 摘 要： | 应用DUT 1非冻结可破碎模型冰进行冰激锥体振动模拟实验的实验设备和模型的设计 ,给出了低冰速和高冰速两种情况下的结构位移曲线、冰力曲线及其幅值谱分析结果 ,得出了结构卓越频率和冰速与特征长度之比的关系 ,发现冰激锥体振动同冰激柱体振动一样有“频率锁定”现象。将实验结果与已有的冰排与圆柱相互作用实验结果进行比较 ,发现冰激锥体振动和冰激柱体振动有着相似的机理
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| 关 键 词： | 冰激振动 锥体 模拟实验 冰力 DUT-1模型冰 |
| 文章编号： | 1005-9865(2002)01-0024-05 |
| 修稿时间： | 2000年12月12 |
The model test of the ice-induced vibration of conical structures |
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| KONG Ling-gang,LIN Gao,LI Zhi-jun,WANG Yong-xue,LI Guang-wei,QU Yue-xia.The model test of the ice-induced vibration of conical structures[J].Ocean Engineering,2002,20(1):24-28. |
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| Authors: | KONG Ling-gang LIN Gao LI Zhi-jun WANG Yong-xue LI Guang-wei QU Yue-xia |
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| Abstract: | The phenomena of the dynamic interaction of ice and structure during the process of experiment is described and analyzed.The displacement time diagram of the structure is recorded,its spectrum analysis is carried out and the predominant frequency is evaluated.Based on the experimental result,the exciting force of ice is calculated.Finally,these results are compared with those obtained in the experiments performed by other researchers for the cylindrical structures.It is found that the mechanism of ice-structure interaction between the conical structure and the cylindrical structure is very similar. |
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| Keywords: | ice-induced vibration conical structure modeling ice force DUT-1 ice |
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