ABSTRACT
Reliability, Availability, and Maintainability (RAM) analysis is an essential tool of Reliability Centered Maintenance-Reengineered (RCM-R®), enabling the analysis team to define assets’ reliability, maintainability, and resulting availability under their current operating context. RAM analysis is flexible, as it can be applied to a single asset or to a whole system by simply including in the mathematics all failure and preventive maintenance events of the desired system over a defined period of time. Statistical life data analysis complements RAM analysis by determining the physics of each failure cause and its corresponding characteristic life. The RCM-R® analysis team determined not only the task but also its frequency based on their analysis using simple mathematical criteria. Waloddi Weibull analysis involves the creation of statistical models from failure events data. Failure ages versus cumulative failure percentage are plotted on a special log-scale paper.
