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: IC
Date posted: Mon Mar 5 16:07:21 US/Eastern 2007
Subject: Reliability Apportionment
Message:
I am looking for information in relation to apportionment and the techniques used for calculating it. I have calculated the apportionment for a System with 6 sub-systems (Using the Equal Apportionment Technique from MIL-HDBK-338). NOW I am trying to calculate the apportionment for the sub systems with the new information that each sub system has now been "weighted" (i.e sub sys 1 will be responsible for 20% fo all system failures and Sub sys 2 47% etc etc). Can anybody tell me how I will calculate the new reliability apportionment based on the "weighted" factors or let me know of any techniques/equations that I can use.

Thanks for the help.

Previous reply

Reply:

Subject: Allocations
Reply Posted by: BWD
Organization: System Reliability Center
Date Posted: Fri Mar 9 13:18:14 US/Eastern 2007
Message:
The three allocation techniques that most common are; Equal Allocation, AGREE Allocation, and Feasibility of Objectives Allocation. I believe that the feasibility technique is the best as it weights the design for intricacy, state of the art, operating time and environment.