AVAILABILITY ANALYSIS OF A TWO - UNIT CENTRIFUGE SYSTEM CONSIDERING THE HALT STATE ON OCCURRENCE OF MINOR/MAJOR FAULT

This paper deals with a centrifuge system consisting two identical unit cold standby considering major/minor fault. It is assumed that system leads to partial failed state on occurrence of a minor fault whereas on occ urrence of a major fault it leads to complete failure. Some time the system is need to be brought at halt state for repair/ replacement (off - line) and repairs/ replacements of the system/ components is done. In general on complete failure of the system, th e repairman first inspect whether the fault is repairable or non repairable and accordingly carry out the repair or replacement of the components involved. Various measures of system effectiveness are obtained by using Markov processes and regenerative poi nt technique. The analysis of the system is carried out on the basis of the graphical studies and conclu sions are drawn regarding the avai lability of the system