Keywords deepwater semisubmersible;preliminary design;multi-objective optimization;motion response;model test;synthetic mooring line;taut mooring system;coupled analysis in time domain;

• 深海半潜式平台;初步设计;多目标优化;运动响应;模型试验;合成系泊缆;张紧式系泊系统;时域耦合分析;