Authors: S.P. Niranjan; V.M. Chandrasekaran; K. Indhira
Addresses: Department of Mathematics, School of Advanced Sciences, VIT, Vellore, India ' Department of Mathematics, School of Advanced Sciences, VIT, Vellore, India ' Department of Mathematics, School of Advanced Sciences, VIT, Vellore, India
Abstract: In this queueing model service process is split into two phases called first essential service and second essential service. Here the occurrence of breakdown during first essential service and second essential service are different. When the server got failure during first essential service, service process will be interrupted and sent to repair station immediately. On contrary during second essential service when the server got failure the service will not be interrupted, it performs continuously for current batch by doing some technical precaution arrangements. Server will be repaired after the service completion during renewal period. On service completion, if the queue length is less than 'a' then the server leaves for vacation. During vacation if the queue length reaches the value 'a' then the server breaks the vacation and performs preparatory work to start first essential service. Various performance measures and cost effective model with appropriate numerical solution of the model are presented.
Keywords: phase dependent breakdown; vacation break-off; dual control policy; bulk arrival; batch service; cost optimisation; renewal time; supplementary variable technique.
International Journal of Data Analysis Techniques and Strategies, 2020 Vol.12 No.2, pp.127 - 154
Accepted: 25 Oct 2018
Published online: 30 Mar 2020 *