Research On Auto Parts Supplier Selection Based On AHP And Grey Relational Analysis

In the 21st century,great changes have taken place in the world pattern.Economic crisis,environmental pollution,energy shortage and aging are becoming increasingly prominent,which have brought great challenges to the global automobile industry.With the aggravation of market competition and the acceleration of structural adjustment of automobile industry,automobile manufacturing enterprises begin to find new industry commanding point to adapt to and lead the development of global automobile industry.As the basis of automobile industry,auto parts suppliers have a great influence on automobile manufacturing enterprises.They affect the development of automobile manufacturing enterprises in the aspects of automobile design,quality,inventory and value.As an important part of the auto industry chain,auto manufacturers need to cooperate with excellent parts suppliers if they want to form a stable and powerful supply chain network.Therefore,how to strengthen the management of parts suppliers and how to evaluate and select parts suppliers have become the key issues of every automobile manufacturing enterprise.First of all,by consulting a large number of literature,this paper summarizes the research status of the evaluation index and selection method of suppliers at home and abroad,and expounds the relevant theories and methods of supplier management theory,AHP,grey system theory,etc.Then,according to the current selection process,evaluation index system and selection method of auto parts suppliers in C company,some problems in the selection of suppliers of C company are found out,and a supplier evaluation index system including 6 first-class indexes and 28 second-class indexes is constructed,and a supplier evaluation and selection model based on AHP and grey correlation analysis is further established.Finally,taking the purchase of a rear double wishbone independent suspension of company C as an example,the most ideal supplier was successfully selected from five potential suppliers,which verified the practicability of the evaluation index system and selection model.The evaluation and selection model can not only solve the problem of information asymmetry between purchasing enterprises and suppliers,but also make full use of the "gray"information implied in the interval index.It can select a scientific and reasonable supplier from both qualitative and quantitative perspectives,and the final selection results meet the requirements of strategic partners of enterprises.