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The Optimum Overhaul Time Calculation in RGA

The power law model in RGA is used to analyze system level failure data of fielded systems. Examination of the parameter β can help the analyst to determine if the system is exhibiting infant mortality (β < 1), constant failure intensity (β = 1) or wearout (β > 1). If the system is exhibiting wearout, then failures happen closer together in time as the system ages. Consequently, the associated maintenance costs will increase over time. One strategy for reducing system maintenance costs is to perform an overhaul of the system. This article discusses the theory behind determining an optimum overhaul time and presents a practical example of the calculation in RGA.


Read the Latest Reliability News

RGA Quick Start Guide Videos Released

We are pleased to announce that the RGA Quick Start Guide is now available as a collection of online videos. This quick start guide has been designed to help you explore many of the software's key features by working through step-by-step instructions. These free videos are available at:


New Reliability and Durability Education Opportunities at ARS Europe

It's time to start planning your trip to Munich, Germany for the International Applied Reliability Symposium (ARS) Europe from April 4 – 6, 2016. This year's event will be packed with 2 reliability/maintainability tracks and 1 durability/fatigue track, which offer a choice of 39 presentations and 3 tutorials. New this year: free seminars in reliability and durability/fatigue after ARS. Seating is limited, so registration is required. Find more information about the ARS program and the optional free seminars here:


In addition to the free seminars, act now to save €100 on ARS registration costs. Get the early registration discount until February 9, 2016. More details here:

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