关键词: 绿色供应商选择, 复杂产品系统, 协同效应, 多阶段, 直觉模糊集

Abstract: Green supplier selection plays an important role in the long lifecycle of Complex Product System(CoPS).Considering the requirements of core enterprises for green supplier selection in CoPS's lifecycle,the index system of CoPS's green supplier selection was established,which included economic index,social index and green index.Considering the interaction between suppliers with different functions in different stages or different sub-functions in a stage,an improved CoPS Multi-stage Green Supplier Selection(MGSS&CoPS)model was proposed,which could make single-stage evaluation based on Intuitionistic Fuzzy Sets(IFSs)and Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS).Meanwhile,the definition of compatibility among suppliers was proposed to reduce alternative supplier combination.The optimal CoPS multi-stage supplier combination selection was realized by combining MGSS&CoPS with single-stage supplier evaluation and multi-stage supplier compatibility.An example of green supplier selection for a cement equipment manufacturing enterprise was given to illustrate the feasibility of the proposed method.

Key words: green supplier selection, complex product system, synergy effect, multi-stage, intuitionistic fuzzy set