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海洋平台随机冰力谱的识别 被引量:8

Random ice-force spectrum identification of marine platforms
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摘要 将海冰对结构的作用看作是随机激励 ,利用海洋平台原型结构冰激振动的实测响应数据 ,用逆虚拟激励法 (IPEM)识别了平台的冰载荷谱 ,结果表明逆虚拟激励法识别效果满足工程实际的需要 ,有较好的应用前景。 WT5”BZ]In this paper, the effects of ice forces on structures are regarded as random excitation. Using the real marine platform response data of ice induced vibration, the ice force spectrum is identified by adopting the inverse pseudo excitation method (IPEM). The result shows that the inverse pseudo excitation method is valuable for engineering application.
出处 《海洋工程》 CSCD 2000年第2期13-17,共5页 The Ocean Engineering
基金 国家自然科学基金资助项目!( 19772 0 0 9) 博士点专向研究基金资助项目!( 970 14 12 0 )
关键词 虚拟激励法 识别 冰载荷 随机振动 海洋平台 模拟 PEM identification ice force random vibration marine platform simulation
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参考文献12

  • 1[1] Sodhi D S. Ice-induced vibrations of structures[A]. Proc. of the 9th. IAHR International Symposium on Ice [C]. Sapporo, Japan: 1988.2: 625-657.
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  • 8史庆增,徐继祖,石志刚.冰力现场量测的间接法及其数据处理程序[J].海洋工程,1990,8(2):35-43. 被引量:8
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二级参考文献1

  • 1[英]纽兰(D·E· Newland) 著,方同等.随机振动与谱分析概论[M]机械工业出版社,1980.

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