Title
An optimum approach of profit analysis on the machine repair system with heterogeneous repairmen
Abstract
We consider a machine repair problem with queue-dependent heterogeneous repairmen. The stationary probability distribution of the number of failed machines in the system is derived. A profit model is developed to determine the optimal values of threshold to assign/add one more repairman for increasing the total service rate where the service rate is assumed adjustable. The probabilistic global search Lausanne (PGSL) method is employed to find an initial trial solution. Based on this initial solution, a direct search method is applied to obtain the optimal values of the threshold and, then, the Quasi-Newton method is implemented to adjust the corresponding service rates. Some numerical experiments are performed to justify the efficiency of the optimum approach.
Year
DOI
Venue
2015
10.1016/j.amc.2014.12.026
Applied Mathematics and Computation
Keywords
Field
DocType
quasi newton method,profit
Mathematical optimization,Quasi-Newton method,Profit model,Direct search,Stationary distribution,Probabilistic logic,Mathematics
Journal
Volume
Issue
ISSN
253
C
0096-3003
Citations 
PageRank 
References 
2
0.44
9
Authors
3
Name
Order
Citations
PageRank
Jau-Chuan Ke134844.17
Tzu-hsin Liu2387.55
Chia-Huang Wu36211.61