Category Archives: Theory and definitions
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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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
Time to failure
This slide presentation describes the basics of the age reliability relationship. It clarifies the difference between the Failure Rate function and the Conditional Probability of Failure. An amusing story about confusing Failure Rate and Conditional Failure Probability is told in … Continue reading
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Posted in Data and samples, EAM, RCM, RcmAnal, Reliability Analysis, Theory and definitions
Tagged Terminology
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