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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: Bryant
Date posted: Fri Dec 6 8:51:22 US/Eastern 2002
Subject: MTBF for complex electromechanical system
Message:
I just want some advice on which distribution should i use to model complex electromechanical system for example army vehicle? Some advice me to use exponential distribution. Can advice? Secondly MTBF only applies to exponential distribution but in actual fact, the vehicle will wear out sooner or later. So for my spares provisioning model should i use MTBF or MTTF values to be more realistic?


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Reply:

Subject: No field data
Reply Posted by: Bryant
Date Posted: Sat Dec 7 21:59:54 US/Eastern 2002
Message:
The fact of the matter is that we could not obtain field figures during developmental stage and we're supposed to recommend certain spares package upfront. As a common practice in my organisation, we are using the MTBF figure in our analysis and i'm wondering if this is the correct approach?


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