Job flow-time in a job shop subject to machine breakdowns with applications in modelling job shop in-process inventories Article

Koulamas, CP. (1990). Job flow-time in a job shop subject to machine breakdowns with applications in modelling job shop in-process inventories . 21(3), 479-486. 10.1080/00207729008910380



cited authors

  • Koulamas, CP

fiu authors

abstract

  • An analytical procedure is presented for determining the mean and standard deviation of job flow-time in a job shop by computing the mean and variance of a random number of random variables. The procedure is applied in the case of a job shop with machines subject to random breakdowns and in the case of a job shop with two classes of jobs. Simulation results validate the analytical procedure but they also show that significant departures from the equal mean processing times assumption have an adverse effect on the accuracy of the analytical results. An expression for the optimal work in process inventory level is also developed for a job shop with machines subject to random breakdowns or with two classes of jobs. © 1990 Taylor & Francis Group, LLC.

publication date

  • January 1, 1990

Digital Object Identifier (DOI)

start page

  • 479

end page

  • 486

volume

  • 21

issue

  • 3