CAJ | 학술논문

有效的利用海浪方向谱的信息能够为船舶安全航行和动力定位控制提供帮助，传统的海浪谱估计方法使用波浪浮标等不能随船安装的仪器，不能用于作业中的船舶。对动力定位船舶进行定点作业情况下的海浪方向谱估计进行研究，提出一种基于船舶运动响应数据估计当前海浪方向谱的方法，采用多维AR算法估计船舶运动交叉谱，采用遗传算法求解海浪方向谱的最优参数，并对4种海况情况进行了仿真实验，验证了该方法的有效性。
유효적이용해랑방향보적신식능구위선박안전항행화동력정위공제제공방조，전통적해랑보고계방법사용파랑부표등불능수선안장적의기，불능용우작업중적선박。대동력정위선박진행정점작업정황하적해랑방향보고계진행연구，제출일충기우선박운동향응수거고계당전해랑방향보적방법，채용다유AR산법고계선박운동교차보，채용유전산법구해해랑방향보적최우삼수，병대4충해황정황진행료방진실험，험증료해방법적유효성。
Useful information from estimation of the directional wave spectrum of sea can assist the safety of ship and the dynamic positioning control. The traditional wave spectrum estimation method uses wave buoys and other instru?ments, which cannot be installed on the ships nor used in working ships. This paper researches the wave directional spectrum estimation for dynamically positioning ships, which work at some fixed point. A method of estimating the current wave directional spectrum based on ship motion response data is presented, which uses multivariate AR al?gorithm to estimate the cross-spectrum of ship motion and uses a genetic algorithm to solve the optimal parameters of wave directional spectrum. A simulation experiment was carried out under four different sea state conditions and the results confirmed the validity of the presented method.