基于SBD的局部气垫双体船快速性优化设计

Optimization design for powering performance of partial air cushion supported catamaran based on simulation based design

局部气垫双体船是一种新型高性能船舶,其气垫高度、片体间距、气封泄流高度等因素对快速性具有重要的影响。文中基于SBD(simulation based design)技术,采用非支配解排序遗传算法分别对局部气垫双体船在越峰段与设计航速段的总阻力值进行双目标优化设计。结果表明:在优化目标所在的航速范围内获得了较好的效果,体现出该优化方法在局部气垫双体船阻力性能优化设计中的优越性。

Partial air cushion supported catamaran （PACSCAT） is a new type of the high performance ship. The cushion height, the distance between two demihulls and the leakage height of the gas seal have significant influence on the powering performance of the PACSCAT. Based on the simulation based design （SBD） technology, the non-dominated sorting genetic algorithm is used to carry out the double-objective optimization design of the total resistance for the PACSCAT at over peak speed and design speed. The results show that a better effect has been achieved for the optimization target in the speed range, proving that the optimization method has the superiority in the optimization design of the resistance performance of the PACSCAT.