Reliability analysis of repair time data using semi-parametric measures

Burhanuddin Mohd Aboobaider, A. Rahman Ahmad, M. Ataharul Islam, Anton Satria Prabuwono

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Downtime affects the production capability of physical assets by reducing output, increasing operating costs and interfering with customer service. Once a unit experiences a service downtime or downgrade, the covariates or risk factors can directly shows impact on the delay in repairing activities. This study reveals the risk factors that either delay or accelerate repair times, and it also demonstrates the extent of such delay, attributable to specific risk factors. The potential risk factors provide necessary inputs in order to improve operation performance. Once risk factors are detected, the maintenance planners and maintenance supervisors are aware of the starting and finishing points for each repairing job due to their prior knowledge about the potential barriers and facilitators. The study employs semi-parametric approaches in a different way using the proportional hazards model to examine the relationship between repair time and various risk factors of interest. The properties of the hazard function for the repair time problem are critically examined and the major findings are highlighted. This paper demonstrates on technicians underlying characteristics estimation using proportional hazards model. A case study has been performed from a data set collection of 1169 air conditioners maintenance records in 2001 from one of the universities in Malaysia. The sample consists of repair time data and background characteristics of the technicians. The estimation can be used as a benchmarking to develop quality services and products in enhancing competitiveness among service providers in maintenance field.

    Original languageEnglish
    Pages (from-to)691-701
    Number of pages11
    JournalEuropean Journal of Scientific Research
    Volume33
    Issue number4
    Publication statusPublished - 2009

    Fingerprint

    reliability analysis
    Reliability Analysis
    Risk Factors
    Reliability analysis
    risk factor
    repair
    Repair
    risk factors
    Maintenance
    Hazards
    Proportional Hazards Model
    technicians
    hazard
    Proportional Hazards Models
    customer service
    supervisors
    Benchmarking
    operating costs
    Malaysia
    Hazard Function

    Keywords

    • Corrective maintenance
    • Delay in repairing
    • Proportional hazards
    • Risk factor analysis

    ASJC Scopus subject areas

    • General

    Cite this

    Aboobaider, B. M., Rahman Ahmad, A., Ataharul Islam, M., & Prabuwono, A. S. (2009). Reliability analysis of repair time data using semi-parametric measures. European Journal of Scientific Research, 33(4), 691-701.

    Reliability analysis of repair time data using semi-parametric measures. / Aboobaider, Burhanuddin Mohd; Rahman Ahmad, A.; Ataharul Islam, M.; Prabuwono, Anton Satria.

    In: European Journal of Scientific Research, Vol. 33, No. 4, 2009, p. 691-701.

    Research output: Contribution to journalArticle

    Aboobaider, BM, Rahman Ahmad, A, Ataharul Islam, M & Prabuwono, AS 2009, 'Reliability analysis of repair time data using semi-parametric measures', European Journal of Scientific Research, vol. 33, no. 4, pp. 691-701.
    Aboobaider BM, Rahman Ahmad A, Ataharul Islam M, Prabuwono AS. Reliability analysis of repair time data using semi-parametric measures. European Journal of Scientific Research. 2009;33(4):691-701.
    Aboobaider, Burhanuddin Mohd ; Rahman Ahmad, A. ; Ataharul Islam, M. ; Prabuwono, Anton Satria. / Reliability analysis of repair time data using semi-parametric measures. In: European Journal of Scientific Research. 2009 ; Vol. 33, No. 4. pp. 691-701.
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