Category Archives: Reliability Analysis
Achieving Reliability from Data
The following is a Conference slide presentation that introduces the principles of Living RCM (LRCM).
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
1 Comment
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
Warranty for haul trucks
You have a fleet of 60 haul trucks. You have been told by the OEM that they allocate 5% of the purchase price to cover repairs during the warranty period. The rationale for this is that the warranty is meant … Continue reading