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Derivation and Analysis of Fill Rate and Utilization Rate for Spare Parts

  • Ruiyang Li
  • , Lilai Zhou
  • , Xiangfeng Ma
  • , Linhan Guo*
  • *Corresponding author for this work
  • Beihang University
  • CSSC Systems Engineering Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Inventory metrics are often expected to meet high standards. However, it is challenging to achieve high values for both fill rate (FR) and utilization rate (UR) simultaneously. In order to explain this phenomenon, this paper conducts some work. We derive the expression and linear relationship for these metrics based on stationary process, considering the specified initial stock level (ISL) and turnaround time. By adjusting the ISL, FR and UR exhibit opposite trends, which can explain the reason that both of them cannot achieve the requirements simultaneously. A numerical example is provided to illustrate the derived linear relationship and patterns of change. This paper aims to assist designers in setting more reasonable requirements for inventory metrics.

Original languageEnglish
Title of host publicationProceedings - 2024 15th International Conference on Reliability, Maintenance and Safety, ICRMS 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages951-955
Number of pages5
ISBN (Electronic)9798331529116
DOIs
StatePublished - 2024
Event15th International Conference on Reliability, Maintenance and Safety, ICRMS 2024 - Gulin, China
Duration: 31 Jul 20242 Aug 2024

Publication series

NameProceedings - 2024 15th International Conference on Reliability, Maintenance and Safety, ICRMS 2024

Conference

Conference15th International Conference on Reliability, Maintenance and Safety, ICRMS 2024
Country/TerritoryChina
CityGulin
Period31/07/242/08/24

Keywords

  • fill rate
  • inventory
  • inventory metrics
  • logistics
  • spare parts
  • utilization rate

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