【作者】 秦太验； 李杰； 常天春； 段梦兰；

【Author】 QIN TaiYan~(1) LI Jie~(1) CHANG TianChun~(1) DUAN MengLan~(2)(1. College of Sciences, China Agricultural University, Beijing 100083, China)(2. China Classification Society, Beijing 100006,China)

【机构】 中国农业大学理学院； 中国船级社；

【摘要】 针对海洋立管的疲劳、断裂及可靠性问题,详细评述近十年国内外这方面的研究成果。立管系统是近海勘探和开采工程中一个非常关键的组成部分,对于负载中的深水立管,结构失效控制和可靠性是设计中需要考虑的一个重要因素。对深水立管系统的可靠性断裂评估,应根据结构和环境情况,选取适当的评估方法。涡激振动是引起海洋深水管疲劳失效的主要因素,论述深水管的涡激振动和抑制方法,涡激振动分析结果可用于评定立管的强度和疲劳积累。最后,给出一些用于深水立管的疲劳寿命预测以及可靠性评估的实用理论和计算方法更多还原

【Abstract】 The deepwater riser system is an important part of offshore exploration and exploitation structures, and its failure control and reliability are the key factors for the design consideration. For the reliability assessment, the appropriate methodology should be applied based on the offshore structures and environment situations. The recent advance of the fracture and fatigue reliability assessment of deepwater risers is reviewed. Then, the vortex-induced vibration in deepwater risers and its restrain method are discussed. Finally, some practical analytical theory and numerical technique of reliability assessment and prediction of the fatigue life for deepwater risers are presented.更多还原