反求工程的产品几何建模技术研究

Study on technology of product's geometric modeling for reverse engineering

分析了目前在反求工程产品几何建模中广泛应用的曲面模型的局限性 ,指出反求工程为实现创新功能必须采用产品特征模型 ,提出了基于实体造型的特征建模方法。这种方法可以避免曲面模型的缺陷 ,拓宽反求工程的应用范围 ,是实现三维重构的新方法。

The limitations of surface modeling that is by and large adopted in product's geometric modeling for reverse engineering are analyzed. It is pointed out that reverse engineering must adopt product feature model in order to realize the innovation functions. The feature model method based on solid modeling is put forward. This method not only can avoid the defects of surface modeling, but also can open up the applied range of reverse engineering. It is a new method to realize 3D reconstruction. In this paper, the theory and the key technology are studied.