Fault tree analysis of a coal handling plant in Mahanadi Coalfields Ltd -evolution of a maintenance management tool

摘要

The prevention of failures and the process of understanding why and how failures occur involve appreciation of the physics of failure. Failure mechanisms are the means by which failures occur. To effectively minimize the occurrence of failures, the designer should have an excellent knowledge of failure mechanisms, which may be inherently associated with the design, or can be introduced from outside of the system. When failure mechanisms are known and appropriately considered in design, manufacturing, construction, production and operation, they can be 'minimized' or the system can be 'protected' against them through careful engineering and economic analysis. This is generally a deterministic reliability analysis process. All potential failures in a design are generally not known or well understood. Accordingly, the prediction of failures is inherently a probabilistic problem. Reliability can be defined as the probability that a component or a system will perform a required function without failure under stated conditions for a stated period of time (Sutton, 1992).