Title

Smart scheduling for better repair-depot reliability

Keywords

Downstream repair completion time; Numerical analysis; Reliability assurance; Scheduling repair starttime; Supportability turnaround time

Abstract

Summary & Conclusions -Linton et al (1995) use an expression for the reliability of the system for repairing failed units (FU) at a repair depot to compute the longest repair time for a newly failed unit (NFU) which assures a given reliability level (also termed the NFU supportability turnaround time or STAT) in terms of the constant failure rate for all components, the number of spares onhand, and projected downstream repair completion times for FU. Since subtraction of the repair time for a NFU from its STAT-value yields the NFU's latest repair start-time (EST) which assures a given repair-depot system reliability (RD-SR), STAT-values are important for scheduling RST. If a NFU's latest RST is negative, however, the NFU cannot be repaired and returned to the status of a spare in time to assure the desired RD-SR level. When a NFU's latest RST is negative and some previously FU have not yet begun their repair, then Sched-Alg (the algorithm in this paper) - shows whether or not it is possible to reschedule RST for FU so that the latest RST for the NFU is non-negative (and, hence, the desired RD-SR can be maintained) and, if a reassignment of RST to meet RD-SR is possible; determines a new RST schedule for FU which ensures the desired RD-SR, minimizes the number of adjustments required, and reduces the total adjustment time. Numerical examples illustrate Sched-Alg. ©1997 IEEE.

Publication Date

12-1-1997

Publication Title

IEEE Transactions on Reliability

Volume

46

Issue

3

Number of Pages

383-388

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/24.664010

Socpus ID

0031223606 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0031223606

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