BULLWHIP EFFECT IN SUPPLY CHAINS REDUCING BY DECENTRALIZED INVENTORY CONTROL BASED ON INVARIANT ELLIPSOIDS METHOD
Науковий журнал «Радіоелектроніка, інформатика, управління»
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BULLWHIP EFFECT IN SUPPLY CHAINS REDUCING BY DECENTRALIZED INVENTORY CONTROL BASED ON INVARIANT ELLIPSOIDS METHOD |
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Dorofieiev, Yu. I.; National Technical University «Kharkiv Polytechnic Institute», Kharkiv, Ukraine Lyubchyk, L. M.; National Technical University «Kharkiv Polytechnic Institute», Kharkiv, Ukraine |
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inventory control; bullwhip effect; decentralized control; invariant ellipsoids method; linear matrix inequality. |
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Context. The urgent task of the decentralized inventory control synthesis of material resources in supply chains with uncertainty of<br />external demand and availability of operational constraints has been solved. Objective is a development of the method of optimal stabilization of local supply chain nodes using a linear dynamic feedback from deviation between available and safety levels of resource stocks in the chain nodes, providing suppression of «bullwhip effect» and the development of the stability analysis method of the decentralized inventory control system in supply chains.<br />Method. An approach based on the invariant ellipsoids method, which provides a complete and timely response of the «unknown, but<br />bounded» external demand for resources, the stabilization of the closed local subsystems under predefined constraints on the values of local<br />states and control actions, as well as the suppression of «bullwhip effect» in the supply chains has been invited. The stability conditions for<br />decentralized inventory control system in supply chains using the vector Lyapunov functions method and the comparison method has been<br />determined.<br />Results. The problem of control synthesis using the technique of linear matrix inequalities was reduced to a sequence of semidefinite<br />programming problems, which are solved numerically in real time.<br />Conclusions. The method of suboptimal structural and parametric synthesis of the decentralized constrained inventory control in supply<br />chains was further developed through the development of the invariant ellipsoids method, thus the costs associated with transportation and<br />storage of material resources were reduced due to suppression of «bullwhip effect»; the degree of suppression of mentioned above effect for different levels of the supply chains is determined by the choice of weighting matrices of local quality criteria. The developed models and<br />algorithms of the decentralized inventory control under uncertainty of demand and availability of operational constraints were introduced at<br />the industrial enterprises and organizations which deal with the production, storage and distribution of material resources, such as the<br />«Kharkivvodokanal» – one of the largest enterprises in Ukraine providing water services and the Ltd. Company «SV» (Kharkiv) – the leading manufacturer of household chemical goods in Ukraine. |
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Zaporizhzhya National Technical University 2017-05-13 11:57:04 |
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application/pdf http://ric.zntu.edu.ua/article/view/101475 |
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Radio Electronics, Computer Science, Control; No 1 (2017): Radio Electronics, Computer Science, Control |
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Copyright (c) 2017 Yu. I. Dorofieiev, L. M. Lyubchyk |
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