Research On Optimization Of Key Links Of Agricultural Products Distribution Center's Supply Chain Management

The agricultural products flow problem affects harmonious and stability of rural society.It has important theoretical and practical meaning for using the advanced SCM method to study the theory and technology of key links of agricultural productsdistribution. The paper first learns from the experience of agricultural products supply chain in developed countries,based on the analysis of the existing agricultural products supply chain model in China and its characteristics,establishes a supply chain in which the agricultural products distribution center as a core.For multi-source supplier selection problem,the paper first uses fuzzy analytic hierarchy process (FAHP) to work out the weight of every supplier, then uses line programming (LP) to optimize the combination of the procurement amount of each supplier with the hard restraint of supply availability and damage rate.Last uses the goal programming (GP) to work out the reasonable procurement amount on each supplier with the restraints of the practical operation in the distribution,to maintain the maximum total value of purchasing.Then inspects the feasibility through an algorithm example.For cooperation profits distribution problem,based on the Stackelberg game theory,analyses the change of parameters like the profits of agricultural products distribution and supermarket,sale price of agricultural products and the volume of sales by the change of profits distribution parameterλ,then gets the cooperation style which benefits both side and is also best for social benefits.Based on the feature that the distribution of agricultural products is strict on the time,the paper first establishes optimization model of vehicle routing problem with time window(VRPTW),then designs improved ant colony algorithm by adding the road traffic ability to the rule of ant transference to figure out the VRPTW,to against the shortcoming of the artificial ant colony algorithm that only considering the shortest distance but not the road traffic ability,so it is more practical to the agricultural products distribution problem.At last through an algorithm example,demonstrates its advantage.