Research On Models Of Coldchain Inventory Control Based On System Dynamics

With food safety issues becoming an increasing concern and attention, toestablish the food safety system, an important part of the construction of the coldchain logistics system also developed rapidly. The inventory problem in the coldchain is an important part of cold chain development. Improvement of the level ofeach node of the cold chain inventory brings cost saving, reduces the adverse effectsof the inventory shortage of consumer satisfaction, and can also ease the inventorybacklog of product deterioration caused by wear and tear. In this paper a newmethod of system dynamics has been used to study about China’s cold chaininventory control problem. Fluctuations in demand of cold chain inventory levelsbased on various aspects of change have been studied, and correspondingcountermeasures and suggestions have also been put forward. This paper is not onlyas a certain practical significance on improving the construction of the cold chainsystem h, but also expanded the application field of System Dynamics to enrich itsacademic value, and added new content for this emerging field of cold chainlogistics inventory management problems.First of all, this paper analyzed the theory and concepts of the cold chaininventory, and made an overall analysis of the study. Then this paper studied thebasic principles and methods of system dynamics, summarized and discussed thefeasibility and advantage that of that S.D applied in the research on cold chaininventory control. Next, the article analyzed the model of cold chain inventorycontrol system, and found out system processes and characteristics, and then startedto build the model. On the basis of system analysis, the paper made analysis of thecausal relationship of the cold chain inventory control system, and establishedflow diagram of the various subsystems of the whole system step-by-step. Then itmade an organic link up into a completed cold chain inventory control systemdynamics model, and made a detailed description of the model equation relationshipbetween variables.The results of this paper showed that in the cold chain inventory control model,a small fluctuations in demand may become large fluctuations in the layers passingthrough the cold chain, and made a direct impact on inventory and demand levels ofvarious aspects of the cold chain. The article suggested some paths to alleviate the problem. It is that simplified cold chain structure from the development ofagriculture super-docking mode, control the rate of deterioration, strengthen theconstruction of information technology and the established the partnership.