Data Fitting for Reverse Engineering

逆向工程数据拟合

• 批准号: 0200385
• 负责人: Leslie Piegl
• 金额: $ 33.29万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-05-01 至 2006-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0200385&HistoricalAwards=false
• 关键词: Data; Fitting; Reverse; Engineering

The objective of the project is to perform basic research leading to better understanding of surface fitting technologies in reverse engineering. Given a set of unorganized or semi-organized points, sampled from an engineering part, methodologies and algorithms are sought to fit a set of smooth surfaces to the data forming the boundaries of the original part design. The process is called reverse engineering and is used to re-engineer an existing part in the absence of the original design. Critical issues to be addressed are efficient surface definition, continuity across surface patches, data reduction, output surface data size, and recognition of conventional surfaces types, such as cylindrical or spherical parts.If successful, the benefits of the research are: (1) a new paradigm for approximation in reverse engineering, (2) a set of visually describable algorithms that can be used in an academic course as well as in an industrial system, and (3) theoretical and computational foundations of robust and easy to implement fitting methodologies. The project is built upon a partnership between academia and industry to conduct basic research to leverage the competitiveness of computer-aided design and computer-aided manufacturing industry.

该项目的目标是进行基础研究，从而更好地了解逆向工程中的曲面拟合技术。给定从工程零件采样的一组未组织或半组织的点，寻求将一组光滑表面与形成原始零件设计边界的数据相匹配的方法和算法。这一过程被称为逆向工程，用于在没有原始设计的情况下重新设计现有零件。需要解决的关键问题是有效的曲面定义、曲面片之间的连续性、数据缩减、输出曲面数据大小以及对传统曲面类型的识别。如果研究成功，研究的好处是：(1)在逆向工程中的逼近的新范例；(2)一套可在学术课程和工业系统中使用的可视描述的算法；(3)稳健且易于实现的拟合方法的理论和计算基础。该项目建立在学术界和产业界之间的合作伙伴关系之上，以进行基础研究，以利用计算机辅助设计和计算机辅助制造业的竞争力。