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Determine and Design the Best ALT

Determine and Design the Best ALT. Fred Schenkelberg, Consultant January 23 rd thru 26 th , 2012 RAMS Session 13C. Selection Criteria. Selection Criteria. Meaningful Results. Selection Criteria. Meaningful Results Measures. Meaningful Results: Measures. Threshold. Surrogate.

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Determine and Design the Best ALT

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  1. Determine and Designthe Best ALT Fred Schenkelberg, Consultant January 23rd thru 26th, 2012 RAMS Session 13C

  2. Selection Criteria

  3. Selection Criteria Meaningful Results

  4. Selection Criteria Meaningful Results Measures

  5. Meaningful Results:Measures Threshold Surrogate Unrelated Direct

  6. Selection Criteria Meaningful Results Measures Cost

  7. Cost Threshold Budget Prohibitive Inexpensive

  8. Selection Criteria Meaningful Results Measures Cost Precision Duration Samples

  9. Consider the alternative ways to conduct the testing ALT Approaches

  10. Example Case Capacitor 24/7 operation High voltage load Outdoor environment Insulation breakdown failure mechanism Let’s consider some ALT options

  11. Time Compression

  12. Build a Model

  13. Given a Model Peck’s Relationship

  14. Step Stress

  15. Degradation

  16. Example Case Capacitor 24/7 operation High voltage load Outdoor environment Insulation breakdown failure mechanism 3 viable ALT options

  17. ALT Selection Select Assume a Model

  18. Questions?

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