Wave-induced Fatigue Damage Analysis for Submarine Pipeline Span
Based on cumulative damage theory,this paper examines wave-induced fatigue damage of submarine pipeline span under the wave.Constraint-equivalent method is used to deal with the boundary conditions of pipeline span according to the factual seabed supports for the pipeline.The nonlinear vibration equation,which satisfies the given boundary conditions,is set up and its closed form solution is developed.The fatigue damage models are detailed in frequency domain approach.A numerical example is presented to illustrate the technical models,and the effects of relative parameters such as span length,seabed stiffness,and hydrodynamic coefficients to fatigue damage are studied.
Cumulative damage Wave-induced fatigue Constraint-equivalent method Frequency domain approach
Xiaoguang Huang
PhD, Lecturer, College of Pipeline and Civil Engineering, China University of Petroleum; No.66, Yangtze River West Road, Economic & Technological Development Zone, Qingdao 266580, China
国际会议
北京
英文
1294-1304
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）