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: Robert Webb (rob.webb@uecd.co.uk )
Organization:Ultra Electronics, Controls Division, UK
Date posted: Thu May 9 13:01:50 US/Eastern 2002
Subject: Dormancy factors
Message:
I am seeking advice on reliability of electronics taking into account dormant periods. Can credit be taken for periods of non-operation to improve the reliabilty prediction of equipment that is only operational for a certain percentage of an overall mission? In my particular example, the equipment would be powered in a 'sleeping' state and not driving any loads for the majority of the mission. I have a copy of your 'Reliability Toolkit' which contains factors obtained from RADC-TR-85-91, but is this still applicable in current thinking? Your advice would be much appreciated. Regards Robert Webb

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