G. Abdulnour et al., EFFECT OF MAINTENANCE POLICIES ON THE JUST-IN-TIME PRODUCTION SYSTEM, International Journal of Production Research, 33(2), 1995, pp. 565-583
Citations number
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Categorie Soggetti
Engineering,"Operatione Research & Management Science
Using simulation, experimental design, and regression analysis, mathem
atical models are developed here to describe the effect that maintenan
ce policy, machine unreliability, processing time variability, ratio o
f preventive maintenance time to processing time, ratio of minimal rep
air time to preventive maintenance time, and production line size have
on various measures of performance, namely total production line outp
ut and production line variability of the just-in-time production syst
em. The analysis of the data shows that under different situations, di
fferent maintenance policies do not have the same effect on the produc
tion line performance. The following conclusions were obtained; when t
he number of production machines is low (five machines or less), and/o
r when the ratio of minimal repair time to preventive maintenance time
is high, maintenance policy III leads to a higher performance than ma
intenance policy II. Otherwise maintenance policy II, which is more se
nsitive to the change of the ratio of minimal repair time to preventiv
e maintenance time, leads to a higher performance. The results of the
study can be utilized in choosing a maintenance policy as a function o
f the production process parameters. Once a policy is chosen, the prac
titioner can select the most important factors to control under that p
olicy in order to minimize the machine idle time, maximize the product
ion process reliability, improve productivity, and therefore increase
the production line performance.