Development and Application of Risk-Based Maintenance System for Dynamic and Functional Equipment to Establish Consistency with the Conventional Method for Static Equipment

Abstract

RBM (Risk-Based Maintenance) has been widely applied as a reasonable management system of maintenance and inspection planning for various facility or equipment. Regarding the RBM, the risk assessment was intended as practical use for static components such as many pressure vessels and piping system etc. However, various dynamic and functional component composed of a factory have been applied a different maintenance system.
In this study, RBM estimation method based on bathtub diagram and Weibull distribution concept is developed. It is composed the basic accumulated failure probability diagram, adjustment of scale parameter η and inspection confidence factor. As results, the RBM suggests the possibility of reasonable and comprehensive inspection and maintenance system.