大型水面舰船尾楔减阻设计遗传算法

Large surface combat ship stern wedge optimization design for the resistance reduction based on the genetic algorithm

大型排水航行类巡洋舰尾水面舰船加装尾部楔形体减阻是船型减阻设计新技术,对提高航速、续航力和节约能耗,以及对船型减阻机理的认识都具有重要的意义.将遗传算法与线性兴波阻力理论新方法相结合进行大型类巡洋舰尾水面舰船尾部楔形体减阻设计的理论计算分析和模型试验验证,得出了多种尾楔减阻设计方案.阻力理论计算值与试验值对比表明,该方法适合应用于类巡洋舰尾大型水面舰船尾部楔形体的减阻设计.加尾楔船型与原型阻力对比表明,尾楔形体对大型类巡洋舰尾水面舰船具有较好的减阻增速效果,总阻力减阻率达5%以上.

Large surface combat ships play important roles in the 21th century. The long service lifetime and big machine power of the large surface combat ships, their ship hull form optimization designed for resistance reduction, including stern wedge appendage application for the resistance reduction, have great military and economic efficiency. The current research paper conducted an investigation of the stern wedge optimization design for the resistance reduction of the large surface combat ship, employing genetic algorithm incorporated with new linear wave- making resistance numerical calculation method, and numerical calculation analysis and model test validation were carried out and several stern wedge schemes were obtained. A comparison of the calculation and experimental results indicates that the present method is suitable to the stern wedge optimization design for the resistance reduction to the large surface combat ship with the quasi cruiser stern form. The resistance result comparison of the hull form between the one with the stern wedges and the prototype indicate the resistance reduction ratio from the stem wedge appendage application attained 5% in contrast to the prototype hull form.