مدل شبیه سازی زنجیره تامین بندر تحت تجزیه و تحلیل تعاملی
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|9641||2011||5 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Procedia Engineering, Volume 15, 2011, Pages 2082–2086
To probe into special port supply chain and analyze the interaction between ports, this paper establishes a port supply chain simulation model through system dynamics (SD) approach, and then, Simulink tool is adopted for that model. Through the simulation, the affluence of some port's operation improvement on the other is clearly shown and the profit of ports is changed with interaction. What's more, it's proven that some partial efficiency increasing may not make the overall improvement, so supply chain management in whole point is very necessary. That port system dynamics simulation model shows the characteristics of a kind of special supply chain and can be helpful for the actual supply chain management project.
Today, Competition is not only within enterprises themselves but also between supply chains which the enterprises belong to. Supply chain management (SCM) becomes an important management conception for enterprises in the current vehement environment . As what Wood has stated, since the supply chain represents 60 to 80% of a typical company’s cost structure, a 10% reduction can yield a 40 to50% improvement in pre-tax profits [2, 3]. For SCM, on account of avoiding large expense for the failure of SCM projects, simulation is a widely and useful method, many scholars have worked over the supply chain in order to achieve some value things: Dating back to early 1960s, Forrester has built a system dynamics model of the three-echelon production distribution system and demonstrated how market demands are amplified through the transactions in the supply chain [4,5]. Minegishi and Thiel make a system dynamics simulation for a food supply chain system. This work sheds light on the complex nature of this specific type of supply chain and in particular on the coordination of variables controlling the food production ; Gavirneni, from the viewpoint of information distortion, simulates an overall supply chain model, that emphasizes the value of information and extended existing inventory theory. Towill from system dynamics perspective also demonstrates that supply chain integration with exchange of information was as beneficial as lead time reduction throughout the supply chain via JIT . Dejonckheere et al. examine the beneficial impact of information sharing in multi-tier supply chains and discovered that information sharing helped to reduce the bullwhip effect in the chains with different inventory policies . In current simulation literature for SCM, the research on supply chain with branched structure and for interaction analysis is little, in addition, the study for the special kind of supply chain is needed to improve, so this paper establishes a port supply chain simulation model through system dynamics, showing little improvement of a port’s operation’s efficiency in supply chain can bring out some change of other ports, which also leads to some operational alternation of the whole supply chain. The rest of the paper is organized as follows. In section 2, a port supply chain simulation model using SD method is established. In section 3, Simulink tool is adopted for the above simulation model, and then, the results expected from the simulation are described. In section4, the conclusions are presented finally
نتیجه گیری انگلیسی
This paper establishes a port supply chain simulation model with interaction through the system dynamics approach, and then, Simulink tool is adopted for that model. Through the simulation, it can be seen clearly that the interaction happens in the port supply chain, and it’s proven that some partial efficiency increasing may not make the overall improvement. That port system dynamics simulation model shows the characteristics of special supply chain and can be helpful for the actual project.