Nonlinear Dynamic Response and Safety Analysis of Suspended Submarine Pipeline
With the application of ANSYS finite element analysis software and environmental data in ChengDao oil field,a nonlinear finite element model of suspended submarine pipeline coupled with sea-floor soil is developed.Discarding the traditional and imprecise pipeline model with double clamped or simply supported ends,the model is founded on the theory of elastic foundation beam,in which the nonlinear effect between pipeline and sea-floor soil is considered.Base on the model we developed,the influences of span length and shear strength of soil at the ends of span on the spans natural frequency are discussed.And the effects of span length,shear strength of soil and current velocity on the dynamic response of span are also analyzed in this paper.The model we developed in this paper fits the actual structure better,and the analysis is instructive for preventing and controlling the suspending of submarine pipeline.
Submarine Pipeline Vortex Induced Resonance Dynamic Response Nonlinear Safety
Bing Shao Xiangzhen Yan Xiujuan Yang
College of Mechanical and Electronic Engineering, China University of Petroleum, Dongying,257061, Sh College of Pipeline and Civil Engineering, China University of Petroleum, Dongying, 257061,Shandong,
国际会议
台湾
英文
3366-3370
2011-12-11（万方平台首次上网日期，不代表论文的发表时间）