An improved green modular design method
                                                                    JIANG Xingyue, ZHANG Xiufen
          (College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China)

Abstract: Aiming at the problems of single green constraints and lack of engineering knowledge support in SMITH's green modular design method based on atomic theory, an improved green modular design method was presented. The modules in the product were considered as atoms, and the components were mapped to nuclei with positive charge and electrons with negative charge. Thus, modules were divided by coulomb forces between components. The green constraint matrix including reuse, remanufacturing and material recovery constraints and calculation rules were designed to modify the coulomb force calculation formula. In addition, a modular merging method based on criteria was proposed to integrate the existing engineering knowledge into the modular merging process. Finally, taking the desk lamp as the object, the green modular design was carried out with the proposed method, and the improvement scheme was given. The results indicate that the number of modules obtained by the improved method is less than that of the original method. Furthermore,the introduction of multiple green constraints and the combination of modules based on criteria not only improve the greenness of products, but also improve the operability of the method.

Key words: modular design; multiple green constraints; lamp; atomic theory