Forum: Reliability & Maintainability Questions and Answers
Topic: Reliability & Maintainability Questions and AnswersTopic Posted by: Reliability & Maintainability Forum (firstname.lastname@example.org )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998
Original Message:Posted by: Wayne
Date posted: Thu Sep 5 22:25:54 US/Eastern 2002
Subject: AMSAA valid?
experience a problem when using the AMSAA model that is my Instantaneous MTBF is higher than my test duration. For e.g i test for a duration of 1000hrs with only 2 failures that occur in the very beginning of the test. Based on this set of data i use the AMSAA Model and the Instantaneous MTBF m(t) of about 1500, which is HIGHER than my test duration. Why is it so? I thought that MTBF cannot exceed the number of test hours. Can enlighten? Is the m(t) a accurate representation of the system at the end of RDGT?