| 海洋石油钻采平台桩腿的模糊动力响应分析 |
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| 引用本文： | 方华灿,高国华.海洋石油钻采平台桩腿的模糊动力响应分析[J].中国石油大学学报(自然科学版),1991(1). |
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| 作者姓名： | 方华灿 高国华 |
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| 作者单位： | 石油大学机械系
(方华灿)，石油大学机械系(高国华) |
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| 摘 要： | 应用模糊数学理论,对海洋石油钻采平台构件在动力作用下的模糊性进行了论述,分析了海底地基对海洋石油钻采平台桩腿的模糊约束效应,研究了在模糊海浪载荷作用下,具有模糊约束效应的桩腿的模糊动力响应,给出了桩腿的模糊动力响应谱,并提供了在一定置信度水平下平台的桩腿可能出现的最大位移谱。这对进一步分析海洋石油钻采平台主要构件的疲劳可靠性,将是十分重要的。
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| 关 键 词： | 海洋石油 海洋平台底座 频率分析 频率响应 模糊理论 |
FUZZY DYNAMIC RESPONSE ANALYSIS OF PLATFORM LEGS FOR OFFSHORE DRILLING AND PRODUCTION UNIT |
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| Fang Huacan Gao Guohua.FUZZY DYNAMIC RESPONSE ANALYSIS OF PLATFORM LEGS FOR OFFSHORE DRILLING AND PRODUCTION UNIT[J].Journal of China University of Petroleum,1991(1). |
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| Authors: | Fang Huacan Gao Guohua |
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| Institution: | Dept. of Mechanical Engineering |
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| Abstract: | Dynamic factors,such as wind,sea wave and current acting on themembers of an offshore drilling and production platform are all of uncertainty and show randomness and fuzziness.A systematic analysis of randomness was made in the light of random process theory.A fuzzy analysis of the structural members under dynamic load was carried out.The fuzzy constraint of sea bed soil to platform leg was analyzed.Fuzzy dynamic response of platform leg under fuzzy sea wave load was studied and the dynamic response spectrum was given.The maximum displacement spectrum of platform leg at a certain level of confidence was proposed.This information is importment for further fatigue reliability analysis. |
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| Keywords: | Offshore oil Platform legs Frequency analysis Frequency response Fuzzy theory |
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