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论文类型：期刊论文

发表时间：2009-11-01

发表刊物：Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition)

收录刊物：EI、PKU、ISTIC、Scopus

卷号：39

期号：SUPPL. 2

页面范围：288-296

ISSN号：10010505

摘要：Taking the mooring system of a semi-submersible drilling platform moored in 1500 m water depth as an example which will be used to conduct model test in the Joint Laboratory of Wind Tunnel and Wave Flume at Harbin Institute of Technology, with the model scale 1:100. The principle and procedure of equivalent water depth truncated design of the deepwater mooring system are introduced. Considering the gravity, tension, current force and mooring line extension, the piecewise extrapolating method is employed to the static analysis of the mooring line. The characteristics of the full-depth mooring system and the truncated mooring system are kept consistent as much as possible, and a model test with truncated mooring system in 400 m water depth is designed based on the principle of static equivalent. The mooring line dynamic analysis is executed in the time-domain based on the nonliner finite element method, and the dynamic behavior differences of full-depth mooring line and truncated mooring line under various environmental loads are compared. Then the specific improving measures are proposed for the dynamic equivalent design.