点击次数：

论文类型：期刊论文

发表时间：2010-06-01

发表刊物：CHINA OCEAN ENGINEERING

收录刊物：SCIE、EI、ISTIC、Scopus

卷号：24

期号：2

页面范围：305-320

ISSN号：0890-5487

关键字：free spanning submarine pipelines; model tests; hydrodynamic force models; dynamic response analysis; earthquake

摘要：A test rig is built to model the dynamic response of submarine pipelines with an underwater shaking table in the State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, China. Model tests are carried out to consider the effects of exciting wave directions and types. Based on the experimental results, two hydrodynamic force models derived from Morison equation and Wake model are presented respectively. By use of hydrodynamic force models suitable for free spanning submarine pipelines under earthquakes, discretized equations of motion are obtained and finite element models are established to analyze dynamic response of free spanning submarine pipeline subjected to multi-support seismic excitations. The comparison of numerical results with experimental results shows that the improved Morison and Wake hydrodynamic force models could satisfactorily predict dynamic response on the free spanning submarine pipelines subjected to earthquakes.