变量化设计(Variational Design)是指设计对象的修改需要更大的自由度，通过求解一组约束方程来确定产品的尺寸合形状，约束方程可以是几何关系，也可以是工程计算...
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何谓参数化设计 参数化设计(Parameric Design)也称变量化设计(Variational Design)是美国麻省理工学院Gossard教授提出的，它是CAD领域里的一大研究热点。
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CAD modeling technology based on computational geometry is researched in this paper, including parametric design, variational design and their constraint resolution algorithms. Factory configuration constraint relations and configuration management technology are presented, which are based on parameters driven.
本文基于三维实体模型的计算几何学表达,研究了CAD 建模技术:参数化设计技术和变量化设计技术,及这两种建模技术的约束求解方式,提出了基于参数驱动的工厂配置约束方法和配置管理技术。
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Parametric design and variational design are the key technology in the modern CAD/CAM systems.
参数化、变量化设计已成为现代CAD／CAM系统的核心技术。
This method keeps the location base of form feature invariance during the feature modeling and editing, and it is suitable for feature parametric variational design and topological variation.
该方法使特征定位基准在特征造型过程中保持不变，且不随特征定位约束参数的改变而变化，能很好地满足参数化变动设计与拓扑结构变异的要求。
Variational design is the kernel of contemporary CAD technology. There are many solving methods for geometric constraint solving at the aim of variational design, but they all have some limitations.
变量化技术是当代CAD技术的核心，以实现变量化设计为目的的几何约束求解有多种方法，但它们都存在一定的局限性。
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