Dynamic Simulation of a Supply Chain with and without Flexibility in the Lead Time Agreements

2007 ◽  
pp. 199-218
Author(s):  
Kaj-Mikael Björk ◽  
Anton Sialiauka ◽  
Christer Carlsson
Keyword(s):  
Supply Chain ◽  
Dynamic Simulation ◽  
Lead Time

Improving the Inventory Levels of a Blood Supply Chain Through System Dynamic Simulation

2014 ◽  
Vol 69 (6) ◽  
Author(s):  
Jafar Afshar ◽  
Narjes Sadeghiamirshahidi ◽  
Ali Reza Firouzi ◽  
Seyed Mojib Zahraee ◽  
Syed Ahmad Helmi Syed Hassan
Keyword(s):  
Supply Chain ◽  
Dynamic Simulation ◽  
Blood Supply ◽  
Lead Time ◽  
System Dynamic ◽  
Average Level ◽  
Blood Supply Chain ◽  
Dynamic Simulation Model ◽  
In Transit ◽  
System Dynamic Simulation

The blood supply chain is a complex system with a multi-echelon structure. Hence, the integration of various interconnected elements, which should be synchronized appropriately, is a necessity to meet the patients’ requirements. The performance of the blood supply chain is a function of different variables that are dependent of each other. Therefore, the main aim of the chain is the optimization of the overall supply chain by considering the dynamic behavior of the system. The purpose of this study is to develop a system dynamic simulation model for a complex blood supply chain in order to improve the average level of inventories. The developed model is based on three echelons with a centrality on a regional blood center. The performance of the supply chain network in the current condition is investigated and based on the objectives, 17 scenarios were experimented for improving the average level of inventories to avoid outdates while there are not any backlogged orders. In addition, the best values of the investigated parameters (safety stock, supplier preparing lead time, in transit time and separation time) were determined.

scholarly journals Three-Echelon Inventory Model with Permissible Delay in Payments under Controllable Lead Time and Backorder Consideration

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
M. F. Yang ◽  
Wei-Chung Tseng
Keyword(s):  
Supply Chain ◽  
Lead Time ◽  
Critical Issue ◽  
Solution Procedure ◽  
Inventory Model ◽  
Permissible Delay In Payments ◽  
Inventory Policy ◽  
Controllable Lead Time ◽  
Key Factor ◽  
Delay In Payments

This paper proposes a three-echelon inventory model with permissible delay in payments under controllable lead time and backorder consideration to find out the suitable inventory policy to enhance profit of the supply chain. In today’s highly competitive market, the supply chain management has become a critical issue in both practice and academic and supply chain members have to cooperate with each other to bring more benefits. In addition, the inventory policy is a key factor to influence the performance of the supply chain. Therefore, in this paper, we develop a three-echelon inventory model with permissible delay in payments under controllable lead time and backorder consideration. Furthermore, the purpose of this paper is to maximize the joint expect total profit on inventory model and attempt to discuss the inventory policy under different conditions. Finally, with a numerical example provided here to illustrate the solution procedure, we may discover that decision-makers can control lead time and payment time to enhance the performance of the supply chain.

A supply chain model for imperfect production system with stochastic lead time demand

2018 ◽  
Vol 5 (4) ◽  
pp. 309-333 ◽  
Author(s):  
Rabin Kumar Mallick ◽  
Amalesh Kumar Manna ◽  
Shyamal Kumar Mondal
Keyword(s):  
Supply Chain ◽  
Production System ◽  
Lead Time ◽  
Chain Model ◽  
Imperfect Production ◽  
Stochastic Lead Time ◽  
Supply Chain Model
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