Title
Simulation and optimization of supply chains: alternative or complementary approaches?
Abstract
Discrete-event simulation and (mixed-integer) linear programming are widely used for supply chain planning. We present a general framework to support the operational decisions for supply chain networks using a combination of an optimization model and discrete-event simulation. The simulation model includes nonlinear and stochastic elements, whereas the optimization model represents a simplified version. Based on initial simulation runs cost parameters, production, and transportation times are estimated for the optimization model. The solution of the optimization model is translated into decision rules for the discrete-event simulation. This procedure is applied iteratively until the difference between subsequent solutions is small enough. This method is applied successfully to several test examples and is shown to deliver competitive results much faster compared to conventional mixed-integer models in a stochastic environment. It provides the possibility to model and solve more realistic problems (incorporating dynamism and uncertainty) in an acceptable way. The limitations of this approach are given as well.
Year
DOI
Venue
2009
10.1007/s00291-007-0118-z
Or Spektrum
Keywords
Field
DocType
hybrid method,discrete-event simulation,supply chain management,optimization,decision rule,discrete event simulation,supply chain,simulation model
Decision rule,Dynamism,Mathematical optimization,Economics,Nonlinear system,Supply chain planning,Supply chain management,Linear programming,Supply chain,Operations management,Discrete event simulation
Journal
Volume
Issue
ISSN
31
1
0171-6468
Citations 
PageRank 
References 
22
1.00
14
Authors
3
Name
Order
Citations
PageRank
Christian Almeder1907.09
Margaretha Preusser2221.34
Richard F. Hartl31863137.30