Analysis of Geometric Variations in Computer-Aided Design

9300134特纳这项研究的目标是为使用实体装配模型进行设计变化分析奠定坚实的科学和技术基础，并为将这些想法转化为工业实践做出贡献。主要的研究目标是：开发实体装配模型，以使设计者的交互最小化；对ANSI公差标准中描述的几何公差进行精确的计算数学化；开发显式统计(过程)模型，作为获取和利用工艺信息的形式方法；通过CAD集成将技术转移到工业实践中。这项研究涉及非线性统计公差分析、公差综合和公差表示。变分分析设计自动化技术的进步可以对美国制造业的竞争力做出重大贡献。这些研究工作将为软件技术的发展奠定坚实的现代基础，这些技术可以为美国制造业的竞争力做出重要贡献。基于实体造型技术的产品模型正在迅速获得认可，形位公差现已成为国家标准。改进的软件技术将变化分析能力融入到产品设计过程中，将为美国工业提供以更低的成本开发更高质量产品的能力，并减少产品开发时间。***

9300134 Turner The objectives of this research are to develop a sound base of science and technology for the variational analysis of designs using solid assembly models, and to contribute to the technology transfer of these ideas into industrial practice. The major research goals are: exploitation of solid assembly models so that designer interaction is minimized; accurate computational mathematization of the geometric tolerances described in the ANSI tolerancing standard; development of explicit statistical (process) models as a formal way ofd capturing and utilizing process information; technology transfer into industrial practice through CAD integration. This research addresses nonlinear statistical tolerance analysis, tolerance synthesis, and tolerance representation. Advances in design automation technologies for variational analysis can make a major contribution to the competitiveness of American manufacturing industries. These research efforts will establish a sound modern basis for the development of software technologies that can make an important contribution to the competitiveness of American manufacturing industries. Product models based on solid modeling technology are rapidly achieving acceptance, and geometric tolerances are now a national standard. Improved software technologies which incorporate variational analysis capabilities into the product design process, will provide American industry with the ability to develop higher quality products, at lower costs, and with reduced product development time. ***