Research On The Evaluation And Optimization Of Petrochemical Enterprise Logistics System

Petrochemical products occupy a very important position in national economy in ourcountry.The sales have been tightly planned and the distribution and circulation have beencontrolled by government’s planning system for a long time. It lacks of overall planning andprocess management.Therefore，the petrochemical enterprise logistics system managementhas not been valued. At the same time，the petrochemical industry belongs to the state-ownedmonopoly industries,and the monopoly profits have made people overlooked the problems inthe operation and management. So the petrochemical enterprises in business activities haveignored the logistics system optimization. As the country gradually reduces the petrochemicalindustry market regulation,the international competition becomes a domestic one and low costand efficient products and services of circulation channels have produced importantinfluences on the survival and the development of state-owned petrochemical enterprises. Atthis point,if the petrochemical enterprises still attach great importance to production ratherthan to logistics,they can be washed out easily in the market competition. Facing the fiercecompetition in the global market and the diversification of customer needs,petrochemicalenterprises must timely adjust enterprise production and business operationactivities,according to the actual current situation of the enterprise itself. Petrochemicalenterprise logistics is a large and complex system,which involves the petrochemicalenterprise’s each department and operation link.The research and analysis of its optimizationand improvement is helpful for enterprises to improve logistics operations and increaseeconomic benefit.Therefore,upon seeking the cost advantage and differentiationadvantage,petrochemical business operators have to focus on the operation of the logisticssystem.The logistics resources integration and optimization has become the third source ofprofit and the important way of establishing enterprise competitive advantage.This paperstudies petrochemical enterprise logistics system based on the above context.It first illustrates the research background,purpose and significance of optimization of thepetrochemical enterprise logistics system,and summarizes the related research status at home and abroad from three aspects including research direction,research content and research levelof the domestic and foreign scholars in the field of petrochemical enterprise logisticssystem.Then it sets the research methods,main contents and technical route.It introducessystematic theory，logistics system theory,and petrochemical enterprise logistics systemtheory.On this basis,it points out the necessity of optimization of petrochemical enterpriselogistics system.Among them，it creatively defines the connotation of the petrochemicalenterprise logistics system and the structure of it,which lays a theoretical foundation for laterstudy.On this basis,the dissertation analyses the present situation of the operation ofpetrochemical enterprise logistics system,and constructs petrochemical enterprise logisticssystem evaluation index system,following the systematic principle,the feasibility principle,theprinciple of government support and the green principle.It explains the index factorsrespectively and evaluates the petrochemical enterprise logistics system. It uses the entropymethod to determine the weight of evaluation indices and the multi-level fuzzy evaluationmethod for evaluation.According to the evaluation results,it points out the existing problemsand the ways to solve them.It applies rough set theory to factors screening,processes the raw data by Rosettasoftware,gets representative indexes,and finally build the logistics system evaluation indexsystem of petrochemical enterprises.And it uses the statistical software SPSS to analyses the reliability and the validity ofdata in the index system,on the premise of ensuring the inventory data reliability andvalidity,and uses the structural equation model to classify the importance of the key factors ofthe petrochemical enterprises logistics system.And it introduces LISREL software to explorethe model hypothesis,algorithm principle,variables set,program designing and the adaptabilitytest of the system.It finds out the key indicators of PLS path according to the softwareoperation results,which can reduce the measurement error and can describe the structure ofthe relationship among latent variables during the analysis process.The traditional economicsmethod is expanded to the field of petrochemical enterprise logistics system evaluation，with anew perspective to examine the operation of petrochemical enterprise logistics system.To realize the optimization of petrochemical enterprise logistics system,it transfers theproblems of the petrochemical enterprise logistics system optimization into travelingsalesman problem,and then elaborates the mathematical model of the traveling salesmanproblem,uses artificial intelligence algorithm of ant colony optimization algorithm to solvethe traveling salesman problem of the structural equation model results.According to someresearch assumptions,it sets related parameters of the ant colony optimization algorithm and completes the algorithm programming,obtains the optimization results by running algorithmof MATLAB software,and finally analyses the optimization results.Finally,according to the results of petrochemical enterprise logistics system evaluationand optimization,aiming at the system optimization of contribution degree,it coordinates thetask and the interest.It puts forward relevant measures of petrochemical enterprise logisticssystem optimization in view of the important indicators,and provides theoretical basis andpractical guidance to effectively improve the whole benefit of petrochemical enterpriselogistics system.