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本文在分析自由过渡曲面设计方法的基础上，对多曲面间光滑自由过渡曲面的设计方法进行了研究，提出了多边域自由过渡曲面的分割拼接设计方法，由于采用了Ｂｅｚｉｅｒ曲面模型，图形数据符合ＩＧＥＳ标准，可和商品化ＣＡＤ／ＣＡＭ系统进行数据交换，因而可解决多曲面间的光滑自由过渡曲面的设计和数据加工问题。
Based on the analysis of the design method of free transition surface, this paper studies the design method of smooth free transition surface between multiple curved surfaces, and proposes the method of split splicing design for free-transition surface of multi-surface. Because Bezier surface model is adopted, The IGES standard for data exchange with commercial CAD / CAM systems addresses the design and data processing issues of smooth, free-form transition surfaces between multiple surfaces.