Integrated platform for coordinate metrology to enhance adaptability

坐标计量集成平台，增强适应性

• 批准号: 376298-2011
• 负责人: Barari, Ahmad
• 金额: $ 1.68万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638358
• 关键词: Integrated; platform; coordinate; metrology; enhance

The purpose of this research program is to develop a more reliable platform for coordinate metrology, to enhance adaptability and sustainability of the corresponding engineering/ scientific applications that need to use the information of geometrical or topological characteristics of surfaces. A typical manufacturing process reduces waste by compensatory works on defected parts, when the process is capable to recognize patterns and nature of possible errors to eliminate or correct them adaptively. This adaptability is the key to achieve greater sustainability for manufacturing processes or other engineering/scientific applications. Sequential performance of three analytical tasks of Point Measurement Planning (PMP), Substitute Geometry Estimation (SGE), and Deviation Zone Evaluation (DZE) in today's coordinate metrology, is subject to different sources of uncertainties, due to estimation of some aspects of a probability distribution on the basis of sampling. This can adversely affect the reliability of inspection. From the applicant's past research, developing concurrency in controlling the three mentioned computational tasks results in valuable opportunities to reduce inspection uncertainties. This novel approach is called an Integrated Inspection System (IIS) and it is an efficient solution to combat the inherent uncertainties in coordinate metrology. In IIS, an estimation of geometric deviations by DZE needs to be dynamically utilized by PMP to acquire the most useful dataset from the measuring surface. Hence, gradual progress of DZE has an important role in IIS implementation. Moreover, as the number of measured points increases, estimation of the optimum geometry by SGE becomes a challenging task due to the high nonlinearity of the resulting optimization problem. The IIS research program aims to develop customized computational methodologies to enable an infrastructural change in today's coordinate metrology workplace, to reduce levels of uncertainties and to increase sustainability in various Canadian industrial sectors. It will also have a direct impact on training of highly qualified personnel who can become the leaders of Canada's future metrology industry.

本研究计划的目的是开发一个更可靠的坐标测量平台，以提高相应的工程/科学应用，需要使用的几何或拓扑特征的信息的表面的适应性和可持续性。典型的制造过程通过对缺陷部件进行补偿工作来减少浪费，此时该过程能够识别可能错误的模式和性质，以自适应地消除或纠正它们。这种适应性是制造工艺或其他工程/科学应用实现更大可持续性的关键。点测量规划（PMP），替代几何估计（SGE），和偏差区评估（DZE）在今天的坐标计量学的三个分析任务的顺序性能，受到不同来源的不确定性，由于估计的一些方面的概率分布的基础上的采样。这会对检查的可靠性产生不利影响。从申请人过去的研究来看，在控制所提到的三个计算任务中开发并发性导致减少检查不确定性的宝贵机会。这种新颖的方法被称为集成检测系统（IIS），它是一种有效的解决方案，以打击固有的不确定性，在坐标计量。在IIS中，PMP需要动态地利用DZE对几何偏差的估计，以从测量表面获取最有用的数据集。因此，DZE的逐步发展在IIS的实施中具有重要作用。此外，由于测量点的数量增加，估计的最佳几何形状的SGE成为一个具有挑战性的任务，由于所产生的优化问题的高度非线性。IIS研究计划旨在开发定制的计算方法，以实现当今坐标计量工作场所的基础设施变革，降低不确定性水平，并提高加拿大各工业部门的可持续性。这也将对培养高素质人才产生直接影响，这些人才将成为加拿大未来计量行业的领导者。