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: Julien Nico (jnico@zodiac-group.com )
Organization:Aérazur - Zodiac group
Date posted: Mon Mar 27 10:56:52 US/Eastern 2000
Subject: Reliability for a missile equipment
Message:
We are currently designing a fuel cell for a missile (fuel cell made with rubber). The missile shall be store during 20 years then launched. Our fuel cell is filled of fuel at the begining. The missile can be subject to underwing carried flights and be launched after 20 years. Time during launched phase is 10 minutes. I have to define the MTBF for the fuel cell. I don't know how to express the MTBF for the component. I can express a MTBF for the 10 operationals minutes but I don't know how to take into account the storage period. Is there a reliability means to express the storage period in the final calculation (fuel cell properties can changed during storage period).

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