Optimal preventive maintenance inspection period on reliability improvement with bayesian network and hazard function in gantry crane

Abstract

In this study, using Bayesian network about degradation model applied practically in gantry crane, the optimal preventive maintenance inspection period is suggested to improve the reliability of the parts. Central to this paper are two ideas. Bayesian network serves to indicate causal relation of the degradation units, and degradation of each unit is defined hazard function. Experimental results are presented to prove that the increase in degradation rate is due to the relation of parts. Proposed analysis method provides a stepping stone for developing basic technique for designing scheduled maintenance under uncertainly failure information. © 2009 Springer Berlin Heidelberg.