Forum: Reliability & Maintainability Questions and Answers
Posted by: Richard Smith (atari_400@hotmail.com ) Date posted: Fri May 25 14:27:59 US/Eastern 2001 Subject: SMT Ferrite Beads - What are people using in MIL-217 and Bellcore 332 Predictions ?? Message: Can anybody provide me with a suggestion for a suitable component to use in a MIL-HDBK-217 or Bellcore TR-332 reliability prediction that would cover a surface mount ferrite or ferrite bead ? Unless I have overlooked something, so far I have not found anything similar apart from possibly a chip resistor as a very loose approximation. Thanks, Richard.
Posted by: Alex Troya (troya@solarturbines.com ) Organization:Solar Turbines, Inc. Date posted: Wed May 23 0:59:58 US/Eastern 2001 Subject: Improving MTBF Message: I am doing a reliability study for a standby generator control system. I learned that one way to reach the target MTBF is by increasing the testing frequency. The formula I found to calculate the testing factor is MTBF/2 * target MTBF. The results seem dubious - can you validate this formula? Thank you.
Posted by: Jim Smith (jamsmi@ballard.com ) Organization:Ballard Generation Systems Date posted: Tue May 22 18:29:07 US/Eastern 2001 Subject: Reliability of Engine Driven Gen Sets Message: Do you have any reliability information, that you can share, on the reliability of engine driven generator sets, in the power range 50 to 100 kW? I need to get a general idea of MTBF, MTTR and preventive maintenance requirements for this type of installation. Thanks.
Posted by: Klaus Denkmayr (klaus.denkmayr@avl.com ) Organization:AVL Date posted: Thu May 17 8:40:12 US/Eastern 2001 Subject: literature on Design for Reliability Message: Hi, can anyone recommend a book on design for reliability? It should cover mechanical design issues. Thanks in advance Klaus
Posted by: Jon Hisey (jon.hisey@psion.com ) Organization:Psion Teklogix Date posted: Wed May 16 14:35:34 US/Eastern 2001 Subject: Headset MTBF Message: I am looking for any information illustrating the calculation of MTBF for a headphone / microphone assembly. Or how others are classifying these devices according to Mil HDBK 217 F
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