Numerical Simulation on Fatigue Life Assessment of Free Span for Submarine Pipeline

摘要：

　　The upper and lower courses of sea oil and gas exploitation are connected by submarine pipeline which is called life line project.Free span often occurs because of the unevenness and scour of seabed, and fatigue is one of the main failure modes.In this paper, with the finite element numerical simulation method, based on the harmonic response analysis, the research on the structural response of free span under the vibration induced by vortex was investigated, and the effect of the factors such as flow velocity, length of free span.According to the analysis results, the fatigue life of free span was evaluated.

关键词： Submarine Pipeline Free Span Fatigue Numerical Simulation

作者: Jie Dong Xuedong Chen Bing Wang Weihe Guan Tiecheng Yang Zhichao Fan Jianhua Pan

作者单位: National Engineering Technical Research Center on PVP Safety,Hefei General Machinery Research Institute,Hefei,Anhui,China

会议类型: 国际会议

会议名称: 2014 International Symposium on Structural Integrity,ISSI2014(2014国际结构完整性学术会议)

会议地点: 兰州

会议语种:英文

页码: 115-121

在线出版日期: 2014-08-20（万方平台首次上网日期，不代表论文的发表时间）