| 考虑断裂和腐蚀失效的海洋平台动态可靠性研究 |
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| 引用本文： | 许亮斌,陈国明.考虑断裂和腐蚀失效的海洋平台动态可靠性研究[J].石油学报,2009,30(1):132-135. |
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| 作者姓名： | 许亮斌 陈国明 |
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| 作者单位： | 1. 中海石油, 中国, 有限公司北京研究中心, 北京, 100027;
2. 中国石油大学机电工程学院, 山东东营, 257061 |
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| 摘 要： | 对海洋平台寿命周期内的动态可靠性进行了研究,提出了单独考虑断裂、腐蚀失效以及同时考虑两种失效模式相互作用的3种动态可靠性分析模型。在此基础上,对平台系统的疲劳可靠性进行了研究,给出了相应的评估方法和计算公式。提出了一种谱分析与时间域相结合的疲劳应力分析方法。该方法结合了两者的优点,一方面可以较好地考虑系统的非线性,同时有效的减少计算工作量,便于实际工程计算。
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| 关 键 词： | 海洋平台 动态可靠性 腐蚀失效 断裂失效 疲劳可靠性 评估方法 |
| 收稿时间： | 2008-1-17 |
| 修稿时间： | 2008-4-24
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Evaluation method for dynamic reliability of offshore platform considering fracture and corrosion failures |
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| XU Liangbin,CHEN Guoming.Evaluation method for dynamic reliability of offshore platform considering fracture and corrosion failures[J].Acta Petrolei Sinica,2009,30(1):132-135. |
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| Authors: | XU Liangbin CHEN Guoming |
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| Affiliation: | 1. Beijing Research Center of China National Offshore Oil Corporation, Beijing 100027, China;
2. Faculty of Mechanical and Electronic Engineering, China University of Petroleum, Dongying 257061, China |
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| Abstract: | The dynamic reliability of offshore platform within its life cycle was analyzed. Three dynamic reliability models in consideration of fracture failure, corrosion failure and both of them were proposed. The dynamic fatigue reliability to platform system was investigated. The corresponding assessment methods and the relative formulae were given. The investigated example illustrated the validation of the proposed method. A new method to prediction of fatigue stress of offshore platform was proposed by combining the spectral method with the time domain method. The new method possesses the advantages of less computation work and more simple application. |
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| Keywords: | offshore platform dynamic reliability corrosion failure fracture failure fatigue reliability evaluation method |
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