Research Initiation: A Qualitative Model for Geometry and Structure, and its Applications to an Integrated Design, Manufacturing Planning and Inspection Environment

随着产品生命周期的缩短和产品种类的增加，最大限度地减少从产品设计开始到制造时间之间的滞后期变得至关重要。能够以具有成本效益和高质量的方式生产中小数量的产品也是至关重要的。该项目的目标是开发一种几何和结构的定性模型，一种基于实例的三维物体制造工艺方案生成的新方法，以及用于识别特征和用户定义的特征建模的新的表示和推理方法。将进行调查，并开发一个以计算机为基础的综合问题环境。基于计算机的系统将在不同的组件集上进行测试，并将用于评估基础模型的能力和局限性。***

As the product life cycles become shorter, and the product variety increases, it has become crucial to minimize the lag period between the start of a product's design and the time it is manufactured. It is also crucial to be able to produce products in small to medium quantities in a cost effective manner with high quality. The objectives of this project are to develop a qualitative model of geometry and structure, a new case-based method for construction of manufacturing process plans for three dimensional objects, and new representation and reasoning methods for recognition of features and modeling of features defined by the users. Investigation will be performed and a computer based environment for integrated issues will be developed. The computer based system will be tested on different sets of components, and will be used to assess the capabilities and limitations of the underlying models. ***