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: John K. (kelsmit@aol.com )
Date posted: Thu Jan 16 22:00:40 US/Eastern 2003
Subject: Reliability Growth
Message:
Ok- I have a test project with five units to test. The units will accumulate hours in test at different rates (I have to share with design engineering - I break it, they fix it). If my first cumulative MTBF calculation is 200 hours (1000 hrs total/ 5 failures), What amount of time do I need before I should run another calculation? Is there some statistics or rational to support a minimum amount of time? Is there a better way to report or calculate reliability? All I have is MS Excel. Thank you - John

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