Research On Retailer Oriented Recycling System For Retired Construction Machinery Remanufacturing

Driven by the increasing environmental pressures and the economic benefits,a substantial amount of enterprises in the field of construction machinery have devoted themselves into the business of collecting and remanufacturing of the end-of-life products.Consequently,the associating issues of closed-loop supply chain and reverse logistics have drawn more and more attentions in academia and industry.As the core issue in closed-loop supply chain,the design of the recycling system lays the foundation for the reverse logistics activities.It determines whether the enterprises can efficiently collect sufficient end-of-life products to realize economic of scale and conduct the remanufacturing business to gain economic and environmental benefits,and will be of great significance in theory and practical applications.Therefore,based on the framework of game theory and modal interval analysis,the study on the design of the recycling system in closed-loop supply chain for construction machinery remanufacturing is conducted by the means of the system dynamic modeling,the numerical study and the positive analysis.The research focuses on four aspects,the reverse channel design,the pricing strategies in closed-loop supply chain for remanufacturing,the reverse logistics network design for remanufacturing,and the establishment of the reverse logistics information platform.Details are as follows.Firstly,the research on the design of the reverse channel in a retailer oriented closed-loop supply chain for construction machinery remanufacturing is conducted.In this special supply chain,the manufacturer produces the new products,the retailer and the third party both collect the used products for the remanufacturer,and the retailer dominates the remanufacturing business and sells both the new products and the remanufactured ones to the customers.Based on several valid assumptions,a special retailer oriented remanufacturing closed-loop supply chain model with hybrid reverse channel is established.The optimal collecting and pricing decisions of the manufacturer,the retailer and the third party as well as the profits are calculated by the method of backward induction and the two-period model analysis,and the optimal collection efforts allocation decision of the remanufacturer is also analyzed.Moreover,the influence of the key system parameters on the collection ratio and the profits is exclusively explored by conducting the numerical study and the sensitivity analysis.Secondly,the pricing and collection issues in closed-loop supply chain for construction machinery remanufacturing that is considering uncertain quality of the used products is investigated,a retailer oriented closed-loop supply chain model is established where the retailer dominates the remanufacturing business and the retailer and the third party both take part in the used product collecting activities.Within the framework of game theory,the analytic solutions of the pricing and collection ratios decisions set by the remanufacturer are deduced.In addition,the key parameters which is uncertain are characterized in the form of modal intervals.Besides,the dynamic pricing and collection decisions are obtained by the method of modal interval analysis.The effectiveness of the proposed method is validated by comparing it with the traditional scenario based method,and the influence of the key system parameters on the decisions of the remanufacturer is studied by utilizing the numerical study.Thirdly,the research on the design of the reverse logistics network for construction machinery remanufacturing under uncertainty is conducted,and the model targets on minimizing the expected total cost.The network model is multi-hierarchy with collection centers own by the retailer and the third party,assembling and dismantling centers,and remanufacturing centers for different parts.In addition,the model also takes into account the uncertainty in the quality and quantity of the end-of-life products.The key system parameters that are difficult to get the whole information are characterized by the form of modal intervals,besides,the genetic algorithm and the modal interval algorithm are combined to solve the proposed mathematical model of interval linear programing under uncertainty.Moreover,the robustness of the network configuration under uncertain environment is studied by conducting the sensitivity analysis with scenario based method,and the effect of the capacity of the facilities on the network is also exhaustively analyzed.Finally,the information management problems in the design of the recycling system for retired construction machinery remanufacturing is studied.By utilizing the SEVALO Construction Machinery Group Co.,LTD,China as the actual case,the requirements analysis and the detail design of the reverse logistics information platform is conducted.The information platform is developed based on the B/S platform,and is designed under the configuration of.net and C#.In addition,the detail functions of the recycling management module and the transportation module are introduced according to the optimal location decisions.