Fatigue Life Prediction of Mooring Chains for a Floating Tidal Current Power Station  

作　　者：Fengmei Jing Liang Zhang Zhong Yang 

机构地区：[1]College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China

出　　处：《Journal of Marine Science and Application》2012年第2期216-221,共6页船舶与海洋工程学报（英文版）

基　　金：Supported by the National "863" Program (Grant No.2007AA05Z450);the National S&T Program (Grant No.2008BAA15B04);2010 Ocean Special Funds (Grant No. ZJME2010GC01, No. ZJME2010CY01);Fundamental Research Funds for the Central Universities (GK2010260106);"111 Project" Foundation (Grant No. B07019) from State Administration of Foreign Experts Affairs of China and Ministry of Education of China

摘　　要：As a kind of clean and renewable energy,tidal current energy is becoming increasingly popular all over the world with the shortage of energy and environmental problems becoming more and more severe.A floating tidal current power station is a typical type of tidal current power transformers which can sustain the loads of wind,waves,and current,and even the extreme situation of a typhoon.Therefore,the mooring system must be reliable enough to keep the station operating normally and to survive in extreme situations.The power station examined in this paper was installed at a depth of 40 m.A 44 mm-diameter R4-RQ4 chain was chosen,with a 2 147 kN minimum break strength and 50 kN pretension.Common studless link chain was used in this paper.Based on the Miner fatigue cumulative damage rule,S-N curves of chains,and MOSES software,a highly reliable mooring system was designed and analyzed.The calculation results show that the mooring system designed is reliable throughout a 10-year period.It can completely meet the design requirements of American Petroleum institution（API）.Therefore,the presented research is significant for advancing the design of this kind of power station.

关 键 词：floating tidal current power station mooring system mooring chain fatigue analysis 

分 类 号：U653.2[交通运输工程—港口、海岸及近海工程] U463.341[交通运输工程—船舶与海洋工程]