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Optimization of vendor managed inventory of multiproduct EPQ model with multiple constraints using genetic algorithm

Pasandideh, S. H. R ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s00170-013-5476-x
  3. Abstract:
  4. The aim of this paper is to investigate the vendor managed inventory (VMI) problem of a single-vendor single-buyer supply chain system, in which the vendor is responsible to manage the buyer's inventory. To include an extended applicability in real-world environments, the multiproduct economic production quantity model with backordering under three constraints of storage capacity, number of orders, and available budget is considered. The nonlinear programming model of the problem is first developed to determine the near optimal order quantities along with the maximum backorder levels of the products in a cycle such that the total VMI inventory cost of the system is minimized. Then, a genetic algorithm (GA) based heuristic is proposed to solve the model. Numerical examples are given to both demonstrate the applicability of the proposed methodology and to fine tune the GA parameters. At the end, the performance of the proposed GA is compared to the one of the LINGO software using different problem sizes. The results of the comparison study show that, while the solutions do not differ significantly, the proposed GA reaches near optimum solutions in significantly less amount of CPU time
  5. Keywords:
  6. Economic production quantity ; Genetic algorithm ; Limited budget ; Limited number of orders ; Limited storage ; Multiproduct ; Vendor managed inventory ; Economic production quantity ; Limited budget ; Limited number of orders ; Limited storage ; Multi-products ; Vendor managed Inventory ; Budget control ; Industrial economics ; Optimization ; Genetic algorithms
  7. Source: International Journal of Advanced Manufacturing Technology ; Vol. 71, issue. 1-4 , 2014 , pp. 365-376 ; ISSN: 02683768
  8. URL: http://link.springer.com/article/10.1007%2Fs00170-013-5476-x