基于参数化船模的静水力计算

摘要

船舶静水力要素全面表达了船舶浮性和稳性随吃水而变化的规律,能够综合反映船舶的静力性能.传统的二维计算方法过程较为繁琐,且计算结果精度受横剖面个数的影响.本文应用数学型线法和三维参数化建模方法,快速生成船体型线,精确构建附带属性和边界条件的船舶三维模型,通过对CATIA软件进行二次开发,将三维设计和静水力计算有效集成,提出基于船舶三维参数化建模的静水力计算方法,可以直接计算和获取其静水力要素,操作简单,结果可靠,具有较强的实用性.%Ship hydrostatic which widely describes the ship's law of buoyancy and stability with depth can generally reflect the ship's static performance. The traditional 2D method to calculate hydrostatic is troublesome and its accuracy is relative to transverse section number selected. The methods to drawing ship lines by mathematic function and modeling with parameter are used in this paper,which can create ship lines and solid model rapidly and accurately. With developing CATIA software, 3D design and hydrostatic calculation are integrated. This paper proposes the method to calculation of ship hydrostatic based on parametric modeling, which directly gains the result. The good operability and reliability is proved by an example.