| 牵索塔平台的非线性响应极值分析 |
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| 引用本文： | 聂武,祁学胜,李维扬. 牵索塔平台的非线性响应极值分析[J]. 哈尔滨工程大学学报, 1990, 0(2) |
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| 作者姓名： | 聂武 祁学胜 李维扬 |
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| 作者单位： | 哈尔滨船舶工程学院船舶与海洋工程系(聂武，祁学胜)，哈尔滨船舶工程学院船舶与海洋工程系(李维扬) |
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| 摘 要： | 本文在时域内对受随机波浪载荷的牵索塔平台作了动态响应分析.分析中考虑了Morison力中的非线性曳力项及缆索系统刚度为线性和非线性两种情况对响应的影响.对响应的极值分布作了分析,并用极值统计学原理对响应的极值分布的近似估计作了参数研究,指出在缆索刚度为线性的假定条件下极值分布采用Gumbel分布表述较好.
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| 关 键 词： | 极值分析 牵索塔 非线性动态响应 |
Non-linear Dynamic Responses of a Guyed Tower and Their Extreme Value Analysis |
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| Nie Wu, Qi Xuesheng, Li Weiyang. Non-linear Dynamic Responses of a Guyed Tower and Their Extreme Value Analysis[J]. Journal of Harbin Engineering University, 1990, 0(2) |
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| Authors: | Nie Wu Qi Xuesheng Li Weiyang |
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| Affiliation: | Dept. of Naval Architecture and Ocean Eng. |
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| Abstract: | This paper presents a dynamic analysis of a guyed tower subjected to random wave load in time domain.The effects of nonlinearity of drag force and stiffness of mooring line system on the response of the tower are discussed.Distributions for the statistical estimation of extreme responses are considered by using the principle of extreme value statistics.The results show that the Gumbel distribution fits well to the value of responses in condition of linear stiffness of mooring line system. |
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| Keywords: | extremal analysis guyed tower non-linear dynamic response |
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