【摘要】：為了提高船舶設(shè)計(jì)過程中艙室建模的效率,提出了一種基于CAD(計(jì)算機(jī)輔助設(shè)計(jì))模型的艙室識(shí)別算法.利用圖形學(xué)中的面和半邊結(jié)構(gòu),建立了全船水密板架面的相鄰、相交關(guān)系,并提出了邊界面優(yōu)先搜索原則,實(shí)現(xiàn)對(duì)全船封閉艙室空間邊界面的自動(dòng)識(shí)別;另外,通過建立外殼結(jié)構(gòu)的包容盒,實(shí)現(xiàn)了對(duì)指向void空間的邊界面分組的剔除.在NX11.0平臺(tái)上以C++語(yǔ)言對(duì)算法進(jìn)行編程實(shí)現(xiàn),并以多種實(shí)際船舶模型為例做測(cè)試.測(cè)試結(jié)果表明:該算法可以簡(jiǎn)化艙室建模流程,明顯提高艙室建模效率,在船艏、船艉等曲面較復(fù)雜的區(qū)域也能保持很高的識(shí)別準(zhǔn)確性,并且該算法創(chuàng)建出來(lái)的艙室實(shí)體均為最小封閉實(shí)體.
[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.
【作者單位】： 華中科技大學(xué)材料科學(xué)與工程學(xué)院;中國(guó)船級(jí)社技術(shù)研發(fā)中心;華中科技大學(xué)船舶與海洋工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51609089)
【分類號(hào)】：TP391.72;U662.2

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