In this paper we consider a two-machine CONWIP system. Firstly, we mathematically model the system as a QBD process. By using the matrix geometric solution technique, we obtain the equilibrium conditions of the system...In this paper we consider a two-machine CONWIP system. Firstly, we mathematically model the system as a QBD process. By using the matrix geometric solution technique, we obtain the equilibrium conditions of the system. Next, we derive the stationary probability distribution of the process. Finally, we give some important performance measures of the system.展开更多
In this paper,we examine some principles in managing manufacturing systems.These principles are concerned with the variability,the utilization,the rework,the lead time,and the constant work-in-process efficiency.Whil...In this paper,we examine some principles in managing manufacturing systems.These principles are concerned with the variability,the utilization,the rework,the lead time,and the constant work-in-process efficiency.While these principles are developed through analyzing some simpler disconnected flow line manufacturing systems,we examine whether they can have broad applications.For some of these principles,we provide sufficient conditions,while for others,we provide counterexamples.Our analysis suggests that we should be very cautious about these laws when applied to non-Markov and non-tandem systems.展开更多
基金the National Natural Science Foundation of China.
文摘In this paper we consider a two-machine CONWIP system. Firstly, we mathematically model the system as a QBD process. By using the matrix geometric solution technique, we obtain the equilibrium conditions of the system. Next, we derive the stationary probability distribution of the process. Finally, we give some important performance measures of the system.
基金the Natural Science and Engineering Research Council of Canada,the National Natural Science Foundation of China(No.71271131)the Academic Research Fund and the E-Business Center of National University of Singapore,and the Central Research Grant of Hong Kong Polytechnic University(G-YN82).
文摘In this paper,we examine some principles in managing manufacturing systems.These principles are concerned with the variability,the utilization,the rework,the lead time,and the constant work-in-process efficiency.While these principles are developed through analyzing some simpler disconnected flow line manufacturing systems,we examine whether they can have broad applications.For some of these principles,we provide sufficient conditions,while for others,we provide counterexamples.Our analysis suggests that we should be very cautious about these laws when applied to non-Markov and non-tandem systems.
