Product evolutionary design driven by environmental performance

Abstract

This article is in terms of product environmental performance demand and proposes four structure evolutionary operation modes which include combined evolutionary method, decomposition evolutionary method, replacement evolutionary method, and material-changing evolutionary method to express the structure evolutionary process of products. Through the quotient space theory and proposed method combined with probability statistics, probability mapping from environmental performance to product structure is established and the evolutionary individuals with outstanding environmental performance are listed. Through the analysis to the specific conditions of the evolutionary individuals, the design constraints are extracted, and the objective function of environmental performance is established. This article presents an interactive genetic algorithm as evolutionary algorithm and combines it with four structure evolutionary operation modes to conduct corresponding gene manipulation and generates evolutionary product. Finally, the proposed methodology is successfully applied to engine gear chamber and the environmental impact is found to be better than before evolution.

A Product Evolution Rules Based Method for Retired Mechanical Product Demand Acquisition

“…However, typical product evolution is reflected in product structure evolution. Zhang et al [25] proposed four structural evolution operation modes: combination evolution method, decomposition evolution method, substitution evolution method, and material change evolution method, and described product structure evolution from the requirements of product environmental performance. Li et al [26] analyzed the complexity, importance, and robustness of product structure, revealed the evolution characteristics of product structure based on a time-varying network model, and provided designers with product development direction.…”