| During the 12 th Five-Year Plan period,National Electric Net Ltd.put forward a system in the strategy of development.The supply guarantee mechanism,the quality control mechanism,and so on.The supply assurance mechanisms put forward higher requirements on material distribution,more and more hydropower enterprises begin to explore to build the logistics service center to meet the needs of their own logistics.However,due to logistics is the non-core business of hydropower enterprises,because of the absence of a mature distribution system,there are some problems in the process of logistics center operation.Such as the high cost and inefficient distribution.Based on this,this paper takes the W enterprise logistics center as the background,and studies its daily distribution routing problem.The main contents of this paper are as follows:First of all,do the overall research of W enterprise logistics center daily distribution routing problem.Through the study of the present distribution network topology structure,the distribution of materials and its characteristics,distribution business process of W enterprise logistics center,combined with the current theoretical research of vehicle routing problem,analysis the key issues of this paper,and put forward the overall research scheme that can solve the problem of hydropower enterprise logistics center distribution.Secondly,study the model of vehicle routing problem of W enterprise logistics center.According to the existing problems in the daily delivery of W logistics center,find the goal of the vehicle routing problem of W enterprise logistics center.Analysis the composition of the target and set up the model,combined with the actual demand of distribution services as constraints.Design an improved genetic algorithm to solve the model of vehicle routing problem with single objective and multiple constraints,and explain the steps in detail.Finally,apply the overall scheme and compare it with the original path design of the enterprise to verify the feasibility,validity and engineering application value of the scheme. |
