| 基于非线性理论的海底管跨涡激共振可靠性研究 |
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| 引用本文： | 刘立名,余建星,王磊.基于非线性理论的海底管跨涡激共振可靠性研究[J].海洋技术,2003,22(2):23-27. |
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| 作者姓名： | 刘立名 余建星 王磊 |
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| 作者单位： | 天津大学建工学院,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目 ( No. 5 99790 18) |
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| 摘 要： | 管跨的涡激振动是引发管跨发生共振失效和疲劳失效的主要因素之一，也是对管跨进行可靠性设计、可靠性评估工作所要解决的主要问题。针对由涡激振动引发的海底管跨共振失效和疲劳失效两种主要失效形式，基于非线性动力学理论、随机过程理论和可靠性分析理论，建立了更为符合海底管线实际工况的共振失效和疲劳失效的可靠性分析方法。
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| 关 键 词： | 非线性理论 海底管跨 涡激共振 可靠性 倍频共振 亚频共振 疲劳失效 共振失效 |
| 文章编号： | 1003-2029(2003)02-0023-05 |
| 修稿时间： | 2003年1月15日 |
Reliability Research on Vibration of Sea Bottom Pipeline Span Induced By Vortex |
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| LIU Li-ming,YU Jian-xing,WANG Lei.Reliability Research on Vibration of Sea Bottom Pipeline Span Induced By Vortex[J].Ocean Technology,2003,22(2):23-27. |
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| Authors: | LIU Li-ming YU Jian-xing WANG Lei |
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| Abstract: | The vibration of pipeline span induced by vortex is the leading factor of causing resonance and fatigue invalidation of pipeline, and is one of the most important confronted and urgent problems that need to be solved during the reliability design and evaluation of pipeline span. According to these two invalidation forms, a reliability analysis method that is more suitable for the operation condition of pipeline is presented based on nonlinear dynamics theory, random processes theory and reliability analysis theory. |
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| Keywords: | pipeline span vibration induced by vortex double frequency resonance sub-frequency resonance |
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