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: SPM
Date posted: Tue Sep 17 10:26:14 US/Eastern 2002
Subject: RCM / Condition Monitoring
Message:
What is the difference between Reliability Centred Maintenance and Condition Monitoring. I have come across varying definitions and would like something definitive. Thanks in advance.

Previous reply

Reply:

Subject: RCM and condition monitoring
Reply Posted by: Larry George (pstlarry@attbi.com )
Organization: Problem Solving Tools
Date Posted: Sun Oct 6 15:04:01 US/Eastern 2002
Message:
This RCM definition is sure to generate protests, because it's so simple. Accretions have obscured this definition.
Replace a part when its operating time exceeds a life limit determined by reliability, P[Life>limit(p)] = 1-p, where the life limit is chosen to provide acceptably low risk from failure of that part. (Risk = p*cost per failure.) Use condition monitoring to make sure the part's reliability does not get worse than the reliability, P[Life>t], used in determining the life limit.