Representations and Algorithms for Manufacturing Coordinate Metrology Point Clouds
制造坐标计量点云的表示和算法
基本信息
- 批准号:RGPIN-2016-05140
- 负责人:
- 金额:$ 1.89万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2016
- 资助国家:加拿大
- 起止时间:2016-01-01 至 2017-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Successful design and manufacturing requires minimum material use with repeatable material properties and shape production. Increased memory and parallel processing has led to demand for new Computer Aided Design and Manufacturing mesh and point cloud based representations and algorithms that can provide analyses at factory floor production rates. Addressing this demand gap is the focus of the research program. Specific short term emphasis is outlined below.
1) In part topology optimization, “non-optimization volume” (such as assembly mating surfaces) constraints are specified, but the remaining “optimization volume” may, depending on expected loads and deflection/strain requirements, be reduced. Software available in the applicant’s laboratory will be used to design Additive Manufacturing (AM) parts that will be 3D printed and measured to determine both free state geometry and deflection/strain under applied loads. The outcome will be validation and greater confidence in the topology optimization / AM process, and more rapid industry adoption of this competitive emerging technology.
2) When using metrology digitizers, an essential task is registration of the point cloud to the nominal part surface. For very thin parts, such as sheet metal, the surface to which the point matches can be ambiguous. Using the applicant's custom installation, for each surface point, the digitizer direction vector towards the digitizer will be determined. Surfaces with opposing normal vectors can then be rejected as matches.
3) A recently acquired laboratory digitizer collects point clouds at rates approaching 500,000 samples / second. Networking up to 4 digitizers, a data point collection rate of 2 million samples / second is achievable. For an automobile mirror sized part, 12 million points must, within 6 seconds, be registered with the nominal geometry. Sole use of serial desktop computer algorithms requires 5 minutes or more for the related computations. Development of a 448 parallel core Graphical Processing Unit video card algorithm has reduced the calculation time to 15 seconds, and recent laboratory purchase of 2880 core technology offers potential for more speed-up. The proposed research will exploit this new technology with the goal of developing parallel algorithms that will process point clouds at factory floor rates.
The proposed research program involves highly employable student training in the use of state-of-the-art software, coordinate metrology digitizers, and parallel computing hardware. It addresses important AM design optimization and measurement issues essential to maintain Canadian competitiveness in lightweight design and manufacture of medical appliance, automotive, aerospace, and consumer goods.
成功的设计和制造需要最少的材料使用和可重复的材料特性和形状生产。内存和并行处理的增加导致了对新的基于计算机辅助设计和制造网格和点云的表示和算法的需求,这些表示和算法可以提供工厂车间生产率的分析。解决这一需求缺口是研究项目的重点。具体的短期重点概述如下。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Spence, Allan其他文献
Accurate Measurement of Surface Grid Intersections From Close-Range Video Sequences
- DOI:
10.1109/tim.2011.2174102 - 发表时间:
2012-04-01 - 期刊:
- 影响因子:5.6
- 作者:
Kinsner, Michael;Capson, David;Spence, Allan - 通讯作者:
Spence, Allan
Spence, Allan的其他文献
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{{ truncateString('Spence, Allan', 18)}}的其他基金
Geometrically adaptive high performance CAD based machining process simulation
基于几何自适应高性能 CAD 加工过程仿真
- 批准号:
170374-2010 - 财政年份:2014
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Geometrically adaptive high performance CAD based machining process simulation
基于几何自适应高性能 CAD 加工过程仿真
- 批准号:
170374-2010 - 财政年份:2013
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Geometrically adaptive high performance CAD based machining process simulation
基于几何自适应高性能 CAD 加工过程仿真
- 批准号:
170374-2010 - 财政年份:2012
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Geometrically adaptive high performance CAD based machining process simulation
基于几何自适应高性能 CAD 加工过程仿真
- 批准号:
170374-2010 - 财政年份:2011
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Geometrically adaptive high performance CAD based machining process simulation
基于几何自适应高性能 CAD 加工过程仿真
- 批准号:
170374-2010 - 财政年份:2010
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Point cloud based design and manufacturing
基于点云的设计和制造
- 批准号:
170374-2007 - 财政年份:2009
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Point cloud based design and manufacturing
基于点云的设计和制造
- 批准号:
170374-2007 - 财政年份:2008
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Point cloud based design and manufacturing
基于点云的设计和制造
- 批准号:
170374-2007 - 财政年份:2007
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Distributed computing for manufacturing simulation and visualization
用于制造仿真和可视化的分布式计算
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170374-2003 - 财政年份:2006
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
Distributed computing for manufacturing simulation and visualization
用于制造仿真和可视化的分布式计算
- 批准号:
170374-2003 - 财政年份:2005
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Grants Program - Individual
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