AN INTEGRATED PRODUCT AND PROCESS DEVELOPMENT MODEL SUPPORTING LIFE CYCLE

摘要

Product life cycle is a continuous and variational time process and can be divided into a sequence of life phases. In this paper, product development process is viewed as an optimization process to find a process set under given evaluation factors so that the set of evaluation indices of entire life cycle will be optimized. Based on this, the model of integrated product and process development is developed by which most development issues can be described as constrained optimization problems. The process of product function decomposition is presented and the state equations of process, energy, material and information of product development are developed. The mapping relationships among functional domain, physical domain and process domain are analyzed. Finally, a case is given to illustrate the proposed method.