The Calculation of Initial Inspection Interval of Condition-Based Maintenance for Special Equipments

Abstract:

Lacking of failure samples, the estimation of MTBF of special equipments is imprecise. Half of the MTBF is regarded as inspection period in classical condition-based maintenance analysis. Because of ignoring reliability life changing of the product, maintenance with fixed period usually leads to more or less of inspection and replacement. According to factory and laboratory failure data, reliability estimation modal of small samples is built for crane based on Bayes theorem, and reliability forecast of the girder of crane is realized. Further more; for special equipments with potential failure mode, first inspection period model of condition-based maintenance analysis based on RCM is set up, on the basis of maintenance cost and availability strategy, the calculation methods of optimal inspection periods are given. This research provides a reference for safety evaluation and inspection strategy establishing for condition-based maintenance of mechanical-electrical special equipments which lack failure data of factory and laboratory.

• Periodical: Advanced Materials Research (Volumes 631-632)
• Pages: 1079-1084
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.631-632.1079
• Online since: January 2013
• Authors: Zhao Xin, Yang Qiang, Zhi Li Sun, Bian Ji, Zhang Lei
• Keywords: Bayes Theorem, Condition-Based Maintenance, Initial Inspection Interval, RCM, Reliability Evaluation, Special Equipments

References

[1] Moubray J. Reliability-centered maintenance, 2nd ed [M]. London, England: Butterworth-Heinemann Ltd.; (1997).

[2] CHEN Shaokuan, JIA Shunping, DU Peng et al. Highest Reliability-based Optimum Maintenance Scheduling Model for Traction Substations in Railways [J]. Journal of Transportation Systems Engineering and Information Technology, 2011, 11(3): 43-49.

DOI: 10.1016/s1570-6672(10)60121-3

[3] MING Zhimao, ZHANG Yunan, TAO Junyong et al. Bayesian Reliability Assessment and Prediction during Product Development [J]. JOURNAL OF MECHANICAL ENGINEERING, 2010, 46(4): 150-155.

DOI: 10.3901/jme.2010.04.150

[4] Gang Niu, Bo-Suk Yang, Michael Pecht. Development of an optimized condition-based maintenance system by datafusion and reliability-centered maintenance [J]. Reliability Engineering and System Safety, 2010, 95: 786-796.

DOI: 10.1016/j.ress.2010.02.016