In this work, a product centric view of the design process is used in capturing the process and the design knowledge of complex, hierarchical engineering systems. The use of individual product configurators expedites redesign and further exploration of the design space. The notion of concept representation is introduced to mathematically formulate the various aspects of a product concept. This representation also enhances the understanding of the overall objectives, allowing for design sensitivity analyses, pre-computation of the engineering design spaces and multi-disciplinary constraint management between modules. Product configurators are developed in a distributed framework to enable rapid design across different platforms. The Purdue Formula SAE vehicle is used as an example case in developing the configuration problem.
INTRODUCTIONDesign is the most important stage in the process of realizing a product. Almost 95% of the cost is committed during design [1]. Hence manufacturers spend considerable time and effort in avoiding errors. This entails the designer to perform a set of tasks repeatedly to ascertain the feasibility and effectiveness of a particular design. Some of these tasks cannot be performed without the creativity of the designer. Moreover, these tasks are interconnected and hence warrant an iterative design process. To reduce the design time, the time taken for each execution of the steps and the number of iterations themselves are to be minimized. The advent of computers and consequently tools such as analysis, optimization and 3D parametric modeling has greatly reduced the design time by reducing the time taken to perform each step. The objective of this work is to develop a mathematical representation of a product to enable rapid design through configuration as shown inIn this way, engineering design can most effectively utilize advances in data storage, computation speed and knowledge sharing repositories. A configurator, for product design purposes, is defined as a software element that instantiates a concept to meet requirements. The concept representation, developed here, forms the basis for product design through configuration. A concept is a generic representation of a product. Instantiation of a concept typically involves (a) defining the architecture of the product, (b) choice of values for its various parameters, (c) definition of its form, and, (d) evaluation of its performance.
THE DESIGN PROCESSThe design process can be considered as a map, albeit an iterative one, from the perceived Customer Requirements (CRs) to the final design of the product that satisfies those