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Nonumiform rational B-Spline surface reconstruction for rapid prototyping manufacturing using innovative reverse engineering approach

机译:使用创新的逆向工程方法进行非材料合理的B样条曲面重建以快速制造原型

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摘要

This article presents an innovative reverse engineering (RE) approach to reconstructing CAD-compatible nonuniform rational B-spline (NURBS) free-form surface models for rapid prototyping manufacturing. The aim of this research is to refinetraditional RE processes by the integration of surface digitization and surface modeling steps into a single process, achieving the reconstruction of NURBS surface models automatically and accurately. A modified adaptive model-based digitizing process(MAMDP) is proposed to ensure that user-specified digitizing accuracy is guaranteed and the quality of the surface modeling result is optimized. Moreover, constructed surface patches can then be accurately registered to a global coordinate frame forgenerating a complete CAD-compatible NURBS model by using the proposed data registration method. Results show that user-specified digitizing accuracy can be guaranteed and the time spent on RE processes can be significantly reduced, thus reducing theproduct development lead time and improving the product's competitiveness.
机译:本文提出了一种创新的逆向工程(RE)方法,用于重建CAD兼容的非均匀有理B样条(NURBS)自由形式曲面模型,以进行快速原型制造。这项研究的目的是通过将表面数字化和表面建模步骤集成到单个过程中来完善传统的RE过程,从而自动而准确地实现NURBS表面模型的重建。提出了一种改进的基于自适应模型的数字化过程(MAMDP),以确保用户指定的数字化精度,并优化表面建模结果的质量。此外,通过使用建议的数据注册方法,可以将构造的表面补丁准确地注册到全局坐标系,以生成完整的CAD兼容NURBS模型。结果表明,可以保证用户指定的数字化精度,并且可以显着减少在RE过程上花费的时间,从而减少了产品开发的准备时间并提高了产品的竞争力。

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