Mitigation of Bullwhip Effect in Closed-Loop Supply Chain Based on Fuzzy Robust Control Approach

Songtao Zhang,Min Zhang

doi:10.1155/2020/1085870

Abstract

Uncertainties and lead times make the closed-loop supply chain (CLSC) more complex, less stable, and then the bullwhip effect (BE) will become more intense. This paper will address a fuzzy robust control (FRC) approach to mitigate the BE in the uncertain CLSC with lead times. For the reverse channels for products in the CLSC, the customers’ used products are recycled by both the manufacturer and the third party recovery provider, and new products bought by customers within a certain period of time can be returned to the retailer. In the CLSC system, the state transformation equations of the inventories and the total operation cost are set up. A new FRC approach is proposed to mitigate the BE and realize the robust stability of the uncertain CLSC with lead times. A simulation example verifies the mitigation effect of the BE under the proposed FRC approach.

Highlights

IntroductionWhether governments construct green supply chains through governmental interventions [1] or enterprises undertake social responsibility through social work donation [2], the environment can be more friendly. erefore, both governments and enterprises have been paying more and more attention to the closed-loop supply chain (CLSC) which can achieve sustainable development [3]
Whether governments construct green supply chains through governmental interventions [1] or enterprises undertake social responsibility through social work donation [2], the environment can be more friendly. erefore, both governments and enterprises have been paying more and more attention to the closed-loop supply chain (CLSC) which can achieve sustainable development [3].e complexity of the business environment results in many uncertainties in the CLSC
Approach, the fuzzy robust control (FRC) approach realizes the total cost of the CLSC system in the stable and lower levels. erefore, for the mitigation of the bullwhip e ect (BE) caused by uncertainties and lead times, the FRC approach proposed in this paper can more effectively guarantee the interests of enterprises in the supply chain and ensure the long-term and stable development of the CLSC

Summary

Introduction

Whether governments construct green supply chains through governmental interventions [1] or enterprises undertake social responsibility through social work donation [2], the environment can be more friendly. erefore, both governments and enterprises have been paying more and more attention to the closed-loop supply chain (CLSC) which can achieve sustainable development [3]. Erefore, both governments and enterprises have been paying more and more attention to the closed-loop supply chain (CLSC) which can achieve sustainable development [3]. In the reverse supply chain, there are uncertainties in quality, quantity, and time of the recycled products, which lead to the uncertainty of remanufacturing pro t. Erefore, for the mitigation issue of the BE in the CLSC with uncertainties and lead times, we will propose a fuzzy robust control (FRC) approach to reduce the BE and realize the robust stability of the CLSC.

Literature Review

CLSC Model

Mitigation of BE

Simulation Analysis

60 The number of products recycled by the manufacturer

Conclusions