Tag: Conditional density function
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The elusive P-F interval
This article discusses the P-F Interval for CBM decision making, its areas of usefulness, and those areas where it is inadequate as a predictive maintenance strategy. An alternative more general approach based on the EXAKT system is proposed. Two categories of decisions, the first driven by failure probability, the second driven by both failure probability…
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Data or reliability analysis is the main role of the Reliability Engineer (RE) in maintenance. In support of his quest for good data, the RE should organize and teach technicians, planners and supervisors how to complete maintenance work orders so that the data is “good”. This is not as difficult as it sounds. The key…
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Confidence in predictive maintenance
Without a mechanism to evaluate a Condition Based Maintenance (CBM) program’s evolving performance CBM activities will degenerate to “busy work”. Data will continue to be collected, manipulated and filed as a matter of routine. To counter this tendency towards apathy, managers should periodically justify, in terms of profitability and safety, the resources allocated to CBM.…