Knowledge Based Approach for the Task Implementation

Abstract

Although advances have been made to integrate the CAD system with design knowledge, there are still some barriers to apply the knowledge-based design approach to wide practice. A task implementation method is proposed for the mechanical product design process. The design task implementation model is constructed based on its organized-mode and modularity. Declarative knowledge primitives make up of the kernel composition of design task. It makes the design task more controllable and automatable. Solution of the knowledge primitives is directly used to drive the mechanical product. Increasing competition of the market forces enterprises to seek ways to be leading in product design and manufacturing. Design in early stages of development is advocated for application to engineering design to shorten and automate the development process. Computer-aided design systems are now being applied to “upstream” design activities. Integration of high-end mechanical computer-aided design (MCAD) systems with design activities and design knowledge would allow manufacturers to automate their engineering and manufacturing processes capturing the design rules, experience and expertise and leveraging it during new product development. Proposed work is to validate the above methodology in specific situations as applicable to real-life problems in engineering industry. Knowledge Based Engineering is becoming a powerful tool to carryout the different task of different phases of product life. In thesis work, three applications has been developed using this recent technology to perform the tasks that are not possible by the other available methods. First project is developed to overcome the problem raised due to insufficiency of drawing workbench of CATIA software and to automate the drawing process. Client wants the drawings for machining simulations setup and that too with machine axis change points must be shown in drawing for particular setup which is not possible by using drawing workbench of CATIA. Second project is to generate report automatically for different machining parameters. Project developed to calculate the distances traveled by each tool and automation of report generations for various machining parameters which is not possible using the particular software workbench. Above mentioned two projects are developed using the Object Oriented Language Visual Basic for Application (VBA) and particular CAD software. Third project is the knowledge based solution for sharing the data between the GIS Software and CAD Software and automatic generation of 3-D models of Whole City. Project developed using the Object Oriented Language Visual Basic (VB), CAD software and GIS software. Key Words: Knowledge Based Engineering, Object Oriented Language, Knowledge Base, Computer Aided Manufacturing, Computer Aided Design, Product Life Cycle Management, Visual Basic For Applications, Geographical Information Systems, Numerical Control.