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Publications
Xu, S., Ji, C. and Guedes Soares, C. (2020), “Experimental study on effect of side-mooring lines on dynamics of a catenary moored semi-submersible system”, Journal of Engineering for the Maritime Environment (Part M), Vol. 234(1), pp. 127-142
A novel mooring system with side mooring lines is proposed for a traditional shape semi-submersible platform with four columns. To obtain the dynamics of moored system, model tests were carried out at a wave basin, including free decay model tests, white noise model tests and irregular model tests. The natural periods in heave, roll and pitch models were measured and compared with numerical results. The motion RAOs under 900 and 1350 waves were obtained from white noise model tests and then compared with numerical simulations. A 100-year sea state in South China Sea was simulated in the wave basin by the JONSWAP spectrum, and the six DOF motion responses of semi-submersible and mooring tensions were recorded in beam and quartering seas. The effects of the side mooring lines on the floating platform motion response, mooring tensions and mooring fatigue damage are evaluated by comparing the results with and without side mooring lines installed.
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