基于最小阻力的某大型船舶型线优化

Hull lines optimization of large vessels based on the minimum resistance

应用船舶设计软件Maxsurf,在国外某大型船舶现有型线的基础上,建立等尺度模型。通过仿似变换改变其长宽比、方形系数及排水量,在Hullspeed软件中计算相应方案下的阻力值,分析船舶总体设计中主参数的变化对快速性的影响。在快速性最优的原则下,统筹考虑该大型船舶的初稳性及耐波性,并计入飞行甲板及机库尺度对大型船舶主尺度的限制,优化设计出新船型。与母型船相比,在其他性能不变的前提下,新船的航速从32 kn提升到35kn,快速性得到优化。本文所得结果与国外研究相符,对大型船舶的总体设计研究具有一定参考意义。

This paper applied Maxsurf software of ship design to build scale models for some large vessels based on the existed foreign models. Analyzed the influence of principal parameters on rapidity during the ship overall design process,though parody transformation to change its aspect ratio（ Lω/ Bω）,block coefficient and displacement,meanwhile calculating the resistance of each model in Hullspeed software. To optimally design a new ship with taken overall consideration of initial stability and seakeeping performance under the principle of speed optimal,including the main dimension restriction from flight deck and hangar width of the aircraft carrier. Compared with the parent ship,the new ship speed has increased32 kn to 35 kn with other performances are fixed,the speed is optimized. The conclusion of this paper is consistent with foreign research and has certain reference significance for large vessel preliminary design.