基于CAD模型的船舶舱室识别算法研究
发布时间：2018-12-17 12:49
【摘要】：为了提高船舶设计过程中舱室建模的效率,提出了一种基于CAD(计算机辅助设计)模型的舱室识别算法.利用图形学中的面和半边结构,建立了全船水密板架面的相邻、相交关系,并提出了边界面优先搜索原则,实现对全船封闭舱室空间边界面的自动识别;另外,通过建立外壳结构的包容盒,实现了对指向void空间的边界面分组的剔除.在NX11.0平台上以C++语言对算法进行编程实现,并以多种实际船舶模型为例做测试.测试结果表明:该算法可以简化舱室建模流程,明显提高舱室建模效率,在船艏、船艉等曲面较复杂的区域也能保持很高的识别准确性,并且该算法创建出来的舱室实体均为最小封闭实体.
[Abstract]:In order to improve the efficiency of cabin modeling in ship design, a cabin identification algorithm based on CAD (computer aided Design) model is proposed. By using the surface and half side structure in graphics, the relationship between the adjacent and intersecting surfaces of the watertight plate frame surface of the whole ship is established, and the principle of boundary surface priority search is put forward to realize the automatic recognition of the space boundary surface of the ship's closed compartment. In addition, the inclusion box with shell structure is built to eliminate the boundary surface grouping pointing to void space. The algorithm is programmed in C language on NX11.0 platform, and tested with many actual ship models. The test results show that the algorithm can simplify the flow of cabin modeling, improve the efficiency of cabin modeling, and maintain high recognition accuracy in areas with more complicated curved surfaces such as bow and stern. And the cabin entities created by this algorithm are the smallest closed entities.
【作者单位】： 华中科技大学材料科学与工程学院;中国船级社技术研发中心;华中科技大学船舶与海洋工程学院;
【基金】：国家自然科学基金资助项目(51609089)
【分类号】：TP391.72;U662.2
本文编号：2384220
[Abstract]:In order to improve the efficiency of cabin modeling in ship design, a cabin identification algorithm based on CAD (computer aided Design) model is proposed. By using the surface and half side structure in graphics, the relationship between the adjacent and intersecting surfaces of the watertight plate frame surface of the whole ship is established, and the principle of boundary surface priority search is put forward to realize the automatic recognition of the space boundary surface of the ship's closed compartment. In addition, the inclusion box with shell structure is built to eliminate the boundary surface grouping pointing to void space. The algorithm is programmed in C language on NX11.0 platform, and tested with many actual ship models. The test results show that the algorithm can simplify the flow of cabin modeling, improve the efficiency of cabin modeling, and maintain high recognition accuracy in areas with more complicated curved surfaces such as bow and stern. And the cabin entities created by this algorithm are the smallest closed entities.
【作者单位】： 华中科技大学材料科学与工程学院;中国船级社技术研发中心;华中科技大学船舶与海洋工程学院;
【基金】：国家自然科学基金资助项目(51609089)
【分类号】：TP391.72;U662.2
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，本文编号：2384220
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