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Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Original Message:

Posted by: Jack Neo
Organization:DSTA
Date posted: Sat Feb 28 5:27:34 US/Eastern 2004
Subject: Models for assessing MTBF of armoured vehicle Road Wheels?
Message:
What is the recommended model for wear life analysis of roadwheels of an armoured vehicles? I have collected the cumulative mileage data when the road wheels are replaced so can i use exponential model? i dont think so because road wheels has a wear out failure mode. so what mathematically model should i use and how to use it?


Reply:

Subject: Life Data Analysis
Reply Posted by: B. Dudley (bdudley@alionscience.com )
Organization: RAC
Date Posted: Wed Mar 3 14:22:06 US/Eastern 2004
Message:
To correctly analyze operating data from armored vehicles, one may need to perform exploratory data analysis, graphical analysis, goodness of fit analysis and analysis of variance. Assuming a distribution such as exponential is not a good idea without statistical evaluation. If you would care to send the detailed data set, we would be happy to perform statistical analysis and inform you of the exact characteristics of the data.


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