| 深海刚性跨接管弯管强度关键影响因素研究 |
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| 引用本文： | 余建星,蔡晓雄,余杨,徐立新,薛陆丰,冯鑫欣.深海刚性跨接管弯管强度关键影响因素研究[J].海洋工程,2018,36(1):1-8. |
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| 作者姓名： | 余建星 蔡晓雄 余杨 徐立新 薛陆丰 冯鑫欣 |
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| 作者单位： | 天津大学 水利工程仿真与安全国家重点实验室，天津 300072; 高新船舶与深海开发装备协同创新中心，上海 200240,天津大学 水利工程仿真与安全国家重点实验室，天津 300072; 高新船舶与深海开发装备协同创新中心，上海 200240,天津大学 水利工程仿真与安全国家重点实验室，天津 300072; 高新船舶与深海开发装备协同创新中心，上海 200240,天津大学 水利工程仿真与安全国家重点实验室，天津 300072; 高新船舶与深海开发装备协同创新中心，上海 200240,天津大学 水利工程仿真与安全国家重点实验室，天津 300072; 高新船舶与深海开发装备协同创新中心，上海 200240,天津大学 水利工程仿真与安全国家重点实验室，天津 300072; 高新船舶与深海开发装备协同创新中心，上海 200240 |
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| 基金项目： | 国家重点基础研究发展计划资助（2014CB046804）；国家自然科学基金（51239008）；国家科技重大专项（2016ZX05028005-004） |
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| 摘 要： | 深海刚性跨接管是水下生产系统的关键设备,其弯管处易因应力集中导致结构失效。依照理论与规范,并结合工程实例,通过数值模拟分析对影响跨接管弯管强度的关键因素进行研究,并对各影响因素展开敏感性分析。结果表明:跨接管结构形式是影响弯管强度的主要设计因素(M型跨接管可有效降低弯管的结构应力),弯管曲率半径影响较小;管道端部位移是影响弯管强度的主要载荷因素(重点分析此因素在不同方向的敏感性,发现轴向端部位移的影响最大);而工作温度对管道强度的影响很小。
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| 关 键 词： | 刚性跨接管 弯管强度 结构形式 端部位移 敏感性分析 |
Study on the key factors influencing the strength of bend tube of subsea rigid jumper |
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| YU Jianxing,CAI Xiaoxiong,YU Yang,XU Lixin,XUE Lufeng and FENG Xinxin.Study on the key factors influencing the strength of bend tube of subsea rigid jumper[J].Ocean Engineering,2018,36(1):1-8. |
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| Authors: | YU Jianxing CAI Xiaoxiong YU Yang XU Lixin XUE Lufeng and FENG Xinxin |
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| Institution: | State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai 200240, China,State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai 200240, China,State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai 200240, China,State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai 200240, China,State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai 200240, China and State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai 200240, China |
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| Abstract: | Subsea rigid jumper is the key equipment of subsea production system, and its bend tube structure is easily damaged by stress concentration. According to relevant theories and specifications, based on a project example, the vital factors affecting the strength of bend tube were studied by finite element numerical simulation. Then the sensitivity analysis of these factors was carried out, and the sensitivity of the end displacement in different directions was analyzed emphatically. The analysis result indicates that the geometry of subsea jumper is the main factor that affects the strength of the bend tube. M type jumper is able to reduce the strength of bend tube effectively. The bend tube radius has little influence. The sensitivity of the end displacement in different directions of the pipeline was mostly analysed, showing that the end displacement is the main load factor that affects the strength of bend tube, and the axial end displacement is the most important. The working environmental temperature hardly influences the result. |
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| Keywords: | rigid jumper strength of bend tube geometry end displacement sensitivity analysis |
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