极地破冰船的快速性优化设计

The Optimization Design of Rapidity of Polar Lcebreaker

船舶的快速性是设计初期的重要性能指标,由于缺乏详细的母型船资料,很难完成破冰船快速性的准确评估和设计。针对上述问题,首先通过Maxsurf软件建立破冰船主体部分的模型并进行船型优化,得到船体的型值和型线图。然后综合航速、冰厚等因素比较不同的船级社规范,估算出了适合该破冰船的推进功率,并利用Hullspeed模块分析求解Holtrop法建立的阻力模型,得到了破冰船的阻力参数,将推进功率与阻力结合最终优化得到关于破冰船快速性的功率曲线。分析结果表明,设计破冰船的破冰功率与航速均符合现代破冰船的设计特点。因此,在设计初期,可以通过Holtorp法回归公式结合船级社规范对破冰船的快速性进行优化设计。

The ship rapidity is an important indicator of basic design, and it is difficult to accurately assess and design the ship rapidity due to the lack of detailed information on the parent ship. Focusing on the problems, firstly the hull model and lines plan of an icebreaker for scientific research, were carried out and optimized using Maxsurf. Then different classification society rules were compared with each other under many factors such as ship velocities, ice conditions, etc. to estimate thrust power of the designed icebreaker, and the resistance parameters were obtained by utilizing Hullspeed module to analyze and solve the resistance model of Holtrop method. Finally the thrust power and resistance were combined to optimize the rapidity power curve of the icebreaker. The analysis results demonstrate that the ice-breaking power and velocity were conformed to the icebreaker trend today. Therefore, the optimization design of rapidity of icebreaker can be achieved using Holtorp method and classification society rules in the basic design period.