Author Archives: Murray Wiseman
RCM – detail and depth
When RCM analysts lack clear goals regarding the amount of detail (i.e. the number of failure modes) to include in the analysis or the depth of causality at which to identify a failure mode, an RCM review session can easily … Continue reading
MESH Basic reliability analysis on the work order
Counting the instances of unreliability (i.e. of failure) describes the most basic form of reliability analysis. The RCM tree provides the most elementary portrait of the failure structure of an item. It would seem natural to combine both these sources … Continue reading
Failure probability prior to attaining MTTF
The article “What is the scale parameter” showed that 63% of randomly failing items or items adhering to Weibull failure behavier will fail prior to attaining their MTTF. Generally speaking, the MTTF is not a good decision guide for the … Continue reading
MESH – RCM knowledge continuous improvement
What befalls the RCM analysis once it is completed and the ensuing PM program uploaded into the EAM? Too often it gathers dust, and fades eventually into distant memory. Only a pale reflection of the intensive mental energy expended in … Continue reading
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