消声瓦几何生成及曲面规划

Geometrical generation for anechoic tile and its layout on the surface of the submarine hull

利用测地线进行消声瓦布置三维设计中各种特征曲线的生成。在测地线生成途径上进行了总结分析,并利用测地线几何性质给出了一种求测地线及消声瓦边界曲线的快捷算法。按照工程要求,提出了一种消声瓦在曲面上整体布置的规划方法,该方法将艇体纵向基准线及网格线作为消声瓦约束和排列的基础,并给出了通过求曲线在曲面上等距线的方法生成基准线;在通用几何造型平台上进行了典型艇体验证,该方法满足工程应用要求。

The paper applies the geodesic theory to generate the various characteristic curves for the 3D-design of anechoic tile laying out. After having summed up the ways of generating geodesic, Presents a shortcut algorithm to calculate geodesic and the boundary curve of anechoic tile by means of the geometrical character of geodesic. And puts forward a global layout method for anechoic tile arranging on the surface of the submarine hull according to the demand from engineering, This method is based on the lengthwise datum line and mesh curve which can constraint anehoic tile to array, In addition to give its generating method by calculating the offset curve on the surface, which derived from the appointed initial curve. Finally, Achieve its program developing on the general CAD system, And its being verified in the typical submarine hull. This method satisfies the engineering requirements.