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車身覆蓋件CAD模型曲面縫合技術
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of CAD Geometric Model for Automobile Panels
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    摘要:

    修復車身覆蓋件CAD數(shù)據(jù)是有限元分析前處理中的重要步驟,，針對車身覆蓋件CAD模型中曲面縫隙問題,，采用NURBS技術對曲面縫合加以研究,，通過管柱算法快速判定匹配邊界,，以基于特征的曲線合并方法完成曲面縫合,，并開發(fā)出曲面縫合算法模塊,。通過對汽車翼子板零件的縫合驗證了算法的有效性,。

    Abstract:

    Repairing of panel CAD geometric model is an important pre-processing step of the finite element analysis, and widely used in the computer-aided geometric design field. This paper focused on the surface healing method of panel CAD model, which was proposed and analyzed by NURBS technology. Firstly, matching-curves border was determined fast through the pipeline method, the surfaces were stitched by the matching-curves method with characteristics. On the basis of the algorithm, a surface stitching program module was developed. The validity of algorithm was verified by healing automobile front fender parts.

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狄馳,田原嫄,鄭國君,郭威.車身覆蓋件CAD模型曲面縫合技術[J].農(nóng)業(yè)機械學報,2010,41(8):223-226. of CAD Geometric Model for Automobile Panels[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(8):223-226.

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