A MULTI-ECHELON AND MULTI-INDENTURE REPAIRABLE ITEM QUEUING MODEL DURING EMERGENCIES

Abstract

The fluid and diffusion approximation for queuing modeling are used to investigate the emergency supply and inventory situations for repairable and expensive sub-indentured items in a large and complex multi-indentured multi-echelon system. It is shown that this approach is a very effective technique for testing emergency situations of complex systems. Various numerical examples are solved to illustrate the approach and to show the dynamics during an emergency situation.