Forum: Reliability & Maintainability Questions and Answers
Posted by: John (firstname.lastname@example.org )
Date posted: Fri Jan 25 15:36:43 US/Eastern 2002
Subject: Unconfirmed Field Failures
When testing returned units (i.e. circuit cards) that have failed at customer sites, occasionally the reported failure or any failure can not be duplicated. Is there any information or rule of thumb regarding these unconfirmed field failure rates? I would be interested in any opinions or experiences.
Posted by: LEE (DEVILHOSEUNG@HOTMAIL.COM )
Date posted: Wed Jan 16 13:53:31 US/Eastern 2002
DOES ANYBODY KNOW WHERE I CAN GET THE GPS FAILURE RATE USING FOR HELICOPTER?
Posted by: Jim Jones (email@example.com )
Date posted: Fri Jan 11 7:30:21 US/Eastern 2002
Subject: Gas Springs
I am looking for the MTBF for nitrogen charged gas springs (GF--30 Deg C), or a source for calculation of MTBF. We are using heavy duty gas springs to lift a system to various heights (prior to pinning) as part of the system function.
Posted by: Johnson Wood (firstname.lastname@example.org )
Date posted: Thu Jan 10 21:57:01 US/Eastern 2002
Subject: RF components reliability
I think the RF(Radio Frequency) components must have some special reliability requirements than other common devices, so are there any references on RF reliability?
Posted by: Richard Smith (email@example.com )
Date posted: Mon Jan 7 15:00:26 US/Eastern 2002
Subject: Reliability Testing Comparison (RDGT/HALT/HASS/PRAT etc.)
Does anybody know of a website or reference that discusses or compares the benefits or disadvantages of the following types of reliability testing:
- Reliability Development Growth Testing (RDGT) - HALT/HASS (Highly Accelerated Life Test/Highly Accelerated Stress Screening) - Production Reliability Acceptance Testing (PRAT) - etc. What I am looking for is something that would help decide when one method would be more advantageous or cost effective over another, and would possibly yield meaningful results.