Supply chain management

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ScienceDirect
Procedia Engineering 69 (2014) 63 – 71

24th DAAAM International Symposium on Intelligent Manufacturing and Automation, 2013

Bullwhip Effect Study in a Constrained Supply Chain
Borut Buchmeistera,*, Darko Friscicb, Iztok Palcica a University of Maribor, Faculty of Mechanical Engineering, Lab. for Production Management, Smetanova 17, SI – 2000, Maribor, Slovenia, EU b CIMOS TAM Ai, d.o.o., Perhavceva 21, SI – 2000 Maribor, Slovenia, EU

Abstract
Well organized supply chains are one of the best ways to compete in today 's marketplaces. For make-to-stock production systems the production plans and activities are based on demand forecasting, which is one of the key causes of the bullwhip effect (BE).
BE is the inherent increase in demand fluctuation up the supply chain and produces excess inventory and poor customer service.
In the paper we simulated a simple three-stage supply chain using seasonal (SM) and deseasonalized (DSM) time series of the market demand data in order to identify, illustrate and discuss the impacts of different level constraints on the BE. The results are presented for different overall equipment effectiveness (OEE) and constrained inventory policies. At higher OEE level manufacturers have less variability in production processes; the BE is stronger in DSM than in SM.
© 2014 The Authors. Published by Elsevier Ltd.
© 2014 The Authors. Published by Elsevier Ltd.
Selection and peer-review under responsibility of DAAAM International Vienna.
Selection and peer-review under responsibility of DAAAM International Vienna
Keywords: Supply chain; bullwhip effect; simulation; capacity constraints

1. Introduction
Supply chain management (SCM) is one of the most important and developing areas. It includes basically demand fulfilment, demand planning and supply planning. It integrates internal and external logistics across many manufacturers, suppliers, distributors,

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