Author Archives: Murray Wiseman
Real meaning of the six RCM curves
You may be wondering about the famous “RCM curves” shown below in Figure 1. They are the Age-Reliability behavior curves which graph the Conditional Probability of failure against age. A common question is the following. “For the 139 items covered … Continue reading
Posted in Data and samples, RCM, Reliability Analysis, Theory and definitions
Tagged Optimization, RCM, Suspension, Weibull
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NAVAIR and the PF interval
This slide presentation provides some facts on the P-F interval. It concludes with a common misconception about the P-F graph.
Internal and external CBM variables
As maintenance or reliability engineers we need to discover what factors influence failure and failure probability. Which of those factors can we control, and which can we monitor for their predictive content. It will help to distinguish between External and … Continue reading
Protected: 2011 Applied Reliability Symposium
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Conditional probability of failure vs. hazard rate
John Moubray, as a warning against being too sure of oneself, used to tell this story to his aspiring RCM consultants: A newly trained RCM practitioner consultant was delivering the standard three-day RCM course to a group of his clients, … Continue reading