Study On The Integrated Optimization Of Inventory And Transportation Under VMI

The research content of this paper comes from the Foundation for the Author of National Excellent Doctoral Dissertation of PR China (No. 200565).For a two-echelon supply chain system made up of the distribution center and the sales-points, the paper separately studies the inventory routing problem that the system is made up of a single distribution center and a set of sales-points; and a set of distribution centers and a set of sales-points.For a two-echelon supply chain system made up of a single distribution center and a set of sales-points, the paper studies the problem of how the distribution center to decide the optimal delivery interval of sales-points and the vehicle routing problem taking into account capacity load under the deterministic demand and no stock-out occurring at the sales-points. The certainty of the optimal delivery interval adopts the method that combines the traditional INT(EOQ) and "Adopting both delivery intervals in a span". And during the course of solving the VRP, we combine the traditional C-W algorithm and the idea of capacity load. So we can reach the aim of improving vehicle loading rate.For a two-echelon supply chain made up of a set of distribution centers and a set of sales-points, the paper studies the problem of how the distribution center to decide the delivery subjects under the deterministic demand and no stock-out occurring at the sales-points. Provided is a new model of delivery division based on Thiessen Tessellation.Numerical experiment verifies the effectiveness and maneuverability of the above scheme in dealing with the two-echelon supply chain.