Graphics Hardware Accelerated Real-Time Machinability Analysis of Free-Form Surfaces

图形硬件加速自由曲面的实时可加工性分析

• 批准号: 0729280
• 负责人: Roshan D'souza
• 金额: $ 22.94万
• 依托单位: Michigan Technological University
• 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: 2007-08-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0729280&HistoricalAwards=false
• 关键词: Graphics; Hardware; Accelerated; Real; Time

The research objective of this award is to investigate new geometric manufacturability/machinability analysis techniques that will leverage the massive computational capabilities of commodity computer graphics hardware to generate real-time feedback to designers. We intend to provide designers with tools to evaluate geometric machinability during the detailed design phase. Instead of operating on the continuous-space solid modeling representations of geometry, our techniques will function in the discretized domain thus simplifying calculations and reducing numerical errors. These methods will exploit the capabilities of graphical processing units (GPUs) to handle the large data-sets which occur when using discrete domain methods. The result will be a collection of various machinability queries implemented as specialized filters that will act on tessellated models of the parts (commonly used for three dimensional display). Manufacturability evaluation will consist of viewing the free-form surfaces with the appropriate filters within the modified graphics pipeline.If successful, this research will result in manufacturability evaluation pipelines analogous to the standard graphics pipeline which will be integrated into contemporary CAD systems for real-time geometric machinability evaluations. Designers will be able to switch between the standard graphics display and the machinability evaluation display to visually identify problem areas in the design during detailed design. As part of the educational plan and outreach, we will develop visualization tools that will be used in courses to improve students' understanding of geometric machinability. These plug-ins will be used in an undergraduate course in computer aided design and in K-12 outreach programs. Promising undergraduate students from computer science (as programmers) and mechanical engineering (test part developers) will be recruited through the Research Scholars Program (RSP) using REU funding. Broader societal impact is addressed through the effect this research will have on maintaining the competitiveness of US product designers in the global market.

该奖项的研究目标是调查新的几何可制造性/可加工性分析技术，这些技术将利用商品计算机图形硬件的庞大计算能力来为设计师生成实时反馈。我们打算为设计师提供评估详细设计阶段几何可加工性的工具。我们的技术无需在几何的连续空间实心建模表示上运行，而是在离散域中起作用，从而简化计算并减少数值错误。这些方法将利用图形处理单元（GPU）的功能处理使用离散域方法时发生的大数据集。结果将是将实现的各种可加解性查询的集合，该查询将作为专门的过滤器，该查询将对零件的镶嵌模型作用（通常用于三维显示）。可制造性评估将包括在修改后的图形管道中使用适当的过滤器查看自由形式的表面。如果成功，这项研究将导致与标准图形管道类似的可制造性评估管道，该管道将集成到现代CAD系统中，用于实时的现代CAD系统几何可加解性评估。设计人员将能够在标准图形显示和可加工性评估显示之间切换，以在详细的设计过程中视觉上识别设计中的问题区域。作为教育计划和外展的一部分，我们将开发可视化工具，这些工具将在课程中使用，以提高学生对几何可加工性的理解。这些插件将用于计算机辅助设计和K-12外展计划的本科课程。来自计算机科学（作为程序员）和机械工程（测试零件开发人员）的有前途的本科生将通过REU资金招募研究学者计划（RSP）。通过这项研究将在全球市场上保持美国产品设计师的竞争力的影响来解决更广泛的社会影响。