SRC Forum - Message Replies

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

Original Message:

Posted by: Andrew Tran (aqtran@raytheon.com )
Organization:Raytheon
Date posted: Thu Nov 14 5:37:21 US/Eastern 2002
Subject: Definition of MCTBF
Message:
I appreciate if someone could provide the definition and its source for these terms below.
1. Mean Calendar Time Between Failure (MCTBF)
2. What is the terminology for 1/MCTBF?
3. What is the Mean Corrective Time Between Failures?
Thank you, Andy

Reply:

Subject: MTBCF
Reply Posted by: Joe Dzekevich (jdzekevich@ieee.org )
Organization: Raytheon
Date Posted: Thu Nov 14 10:57:53 US/Eastern 2002
Message:
MTBCF = Meant Time Between Critical Failure This is the effective MTBF of a system with redundancy. 1/MTBCF = effective system failure rate with redundancy. Mean Corrective Time Bewteen Failures may be the logistics MTBF. The system could be still running, but a redundant component could have failed.