摘要
对KCS船在顶浪规则波中的型线优化开展研究。采用径向基函数方法对船体型线进行变形,使用SHIPFLOW中的全非线性的时域边界元方法水动力性能求解器对阻力性能进行预报,利用拉丁超立方采样方法和Kriging近似模型以减少水动力性能计算,结合多岛遗传算法以船体在1.15倍船长的顶浪规则波的阻力为优化目标进行优化。计算结果表明优化后的船型相比于原船总阻力减少了4.48%,波浪增阻系数减少了18.08%。
A study is conducted to optimize the KCS′s hull design in regular head waves.The transformation of the hull lines is achieved using the radial basis function method.The hydrodynamic performance solver in SHIPFLOW,employing the fully nonlinear time-domain boundary element method,is utilized to predict the resistance.To reduce the computational resources required for hydrodynamic performance calculations,Latin hypercube sampling method and Kriging approximation model are used.Furthermore,multi-island genetic algorithm was integrated to reduce the resistance in regular head waves with a wavelength equivalent to 1.15 times of the ship′s length.The results of the calculations show a 4.48%reduction in the total resistance of the optimized ship,along with an 18.08%decrease in the added resistance coefficient as compared to the original ship.
作者
楼沈韬
张奕
马宁
史琪琪
LOU Shentao;ZHANG Yi;MA Ning;SHI Qiqi(State Key Laboratory of Ocean Engineering,Shanghai Jiaotong University,Shanghai 200240,China;School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China;Institute of Marine Equipment,Shanghai Jiaotong University,Shanghai 200240,China)
出处
《舰船科学技术》
北大核心
2024年第18期49-53,共5页
Ship Science and Technology
