Queue time approximation for a production line with large variability
Chua, Kurtz Yuan Feng
Date of Issue2017
School of Mechanical and Aerospace Engineering
Queuing networks are surprisingly common in a wide range of real-life scenarios. They can be found in service systems like commercial, transportation, internal and even social service systems. It is important to understand these queuing systems and to ensure that the systems developed are e ective and e cient by reducing queue times (waiting time). It is however di cult to obtain the exact queue times in tan- dem queues. Many approaches have been used to approximate the exact mean queue time in a tandem queue and this article will be focusing on one of the approximation approach by Wu and McGinnis (2012). In Wu and McGinnis (2012), they showed that by exploiting the Intrinsic Ratio, the queue time can be more accurately ap- proximated in single server tandem queues. This paper aims to determine if the use of the Intrinsic Ratio will also be applicable in approximating the queue times for a tandem queue with homogeneous servers. This paper will present ndings based on the simulation of a high variability production line. The almost linear properties of the intrinsic ratio provided in this paper, will provide insights to the approximation of queue times that will be applicable to real-life manufacturing processes.
Final Year Project (FYP)
Nanyang Technological University