异常波及其对海上结构铃振现象的影响 |
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引用本文: | 庞红犁,张庆河,秦崇仁. 异常波及其对海上结构铃振现象的影响[J]. 水道港口, 2003, 24(3): 109-114 |
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作者姓名: | 庞红犁 张庆河 秦崇仁 |
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作者单位: | 天津大学,天津,300072 |
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摘 要: | 海上结构物的铃振(Ringing)现象是新近发现的一种高频共振响应现象,对结构物有显著的破坏作用。从实测资料中发现,在恶劣海况下发生的具有强非线性和非对称性的异常波(Freakwave)有可能引起海上结构物的铃振响应。文中综述了可能引起铃振响应的异常波的研究现状及成果,分析了其能量分布,并指出异常波是海上结构物产生铃振现象的机理之一。
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关 键 词: | 铃振现象 异常波 小波分析 |
文章编号: | 1005-8443(2003)03-0109-06 |
修稿时间: | 2003-04-21 |
Freak Wave and Its Effect on Ringing of Offshore Structures |
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Abstract: | Ringing is a newly found high frequency resonance response phenomenon.It's found from the measured data that freak wave with strong nonlinearity and asymmetry occurred in bad sea conditions may induce ringing of offshore structures.Some study results about freak wave are summerized;then,the energy distribution is analyzed;and finally,it's proposed that the freak wave is one of the mechanisms of ringing offshore structures. |
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Keywords: | ringing freak wave wavelet analysis |
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