船体曲面变形中支撑半径的确定方法及应用研究

Determination Method of Support Radius in Hull Form Transformation and ITs Application

为实现船体型线的自动优化,船体曲面参数化修改是关键技术之一。论文将径向基函数插值技术应用于船体曲面的三维自动变形,重点围绕Wendland基函数的支撑集半径选取问题开展深入研究,提出利用Delaunay三角剖分的方式确定支撑半径的新方法。在此基础上,完善基于径向基插值的船体曲面变形模块,并将其应用于典型船型优化中,本文的工作为船型优化的工程化应用奠定了基础。

In automatic optimization of hull form, one of the key technologies is modifying hull form parameters. In this paper, interpolation of the radial basis function was applied in three dimensional deformations of the hull, and how to select the radius of support set by Wendland Basic Function was focused on. A new method of determining the support radius by using Delaunay Triangulation was proposed. The module of hull form deformation was refined based on the interpolation of radial basis function, and was applied to typical hull form optimization. That laid a foundation for engineering application of hull form optimization.