High-Quality Shape Design and Surface Representation

高质量的形状设计和表面表现

• 批准号: 0728797
• 负责人: jorg peters
• 金额: --
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0728797&HistoricalAwards=false
• 关键词: Quality; Shape; Design; Surface; Representation

Surface shape and quality have a visible impact on new product design and industrial competitiveness. This research addresses the fundamental challenge of smoothly joining multiple surface pieces without shape defects. The new approach separates shape design from surface representation and thereby gives more freedom to the designer while still delivering a standard representation required by industrial design cycles.In the new approach, shape is locally defined by surface fragments, called guide surfaces. Guide surfaces need only obey few constraints. In a second step, the derivative jets of each guide surface are sampled and converted to curvature continuous parametric surfaces in standard representation. The research characterizes classes of guide surfaces, devises strategies for automatic guide surface construction and formalizes and analyzes the properties of jet sampling strategies in practical implementations.

表面形状和质量对新产品的设计和产业竞争力有着明显的影响。本研究解决了多表面件无形状缺陷平滑连接的基本挑战。新方法将形状设计与表面表示分离开来，从而给设计师更多的自由，同时仍然提供工业设计周期所需的标准表示。在新的方法中，形状是由表面碎片局部定义的，称为导向表面。导向面只需要服从很少的约束。第二步，对每个导曲面的导数射流进行采样，并将其转换为标准表示的曲率连续参数曲面。该研究对导向面进行了分类，设计了自动导向面构建策略，并形式化并分析了实际实现中射流采样策略的性质。