Open AccessResearch on the mooring arrangement of a small ship against typhoon in harbor
Author(s) -
Wenjun Shen,
Yingni Luan,
Hanbao Chen
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/621/1/012080
Subject(s) - typhoon , mooring , marine engineering , tension (geology) , engineering , structural engineering , time domain , computer science , geology , ultimate tensile strength , oceanography , materials science , metallurgy , computer vision
Based on the time domain coupled model, the feasibility of a small vessel moored at the berth against typhoon is studied using the numerical simulation method. Considering the nonlinear characteristics of mooring lines and fenders, the dynamic response characteristics of the coupled system of ship, mooring lines and fenders are analyzed for different mooring arrangement. The reasonable and feasible layout is recommended for typhoon protection, and the influence law of cable load with different pretensions is discussed. The calculation results show that: when the number of mooring lines is increased to 16 and 422 mooring arrangement is adopted, then the mooring safety can be met under the survival condition. At the same time, it is found that the cable load does not decrease with the increase of pretension, but has a trend of decreasing first and then increasing. Therefore, it is necessary to select a reasonable pre-tension during mooring operation.