| Joint distribution is an advanced distribution mode by sharing resources.It is not only break through own constraints and achieve higher goals,but also achieve win-win between participates,and thus promote the development of the entire supply chain enterprises.Firstly,this paper introduces the necessity of joint distribution from the advantages and the present situation,analyzed the joint distribution mode,resource integration and distribution strategies,then introduces the word of "virtual enterprise" from management perspective to give a way to manage the joint distribution.Secondly,based on the traditional closed path optimization model,a static joint distribution path optimization model of vehicle sharing is given.Then,the genetic algorithm is used to solve the model and the results are compared with the traditional closed vehicle path optimization,which validates the validity and accuracy of the model.Thirdly,studies a multi-distribution centers,open vehicle routing problem with joint distribution and real-time demand information,the mathematics model are given and transformed into a static problem by timeline to solve it.Finally,aiming at the dynamic joint distribution mathematical model of vehicle sharing,the improved genetic algorithm are given and it is realized by MATLAB,and an example is presented to illustrate the algorithm.The results are verified the validity of the algorithm and provides an effective solution for the dynamic opening routing optimization problem. |
