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قابليت اطمينان Reliability

قابليت اطمينان Reliability. قابليت اطمينان : احتمال سالم بودن دستگاه در لحظه t. نرخ خرابي نسبي: درصد دستگاه خراب شده در واحد زمان. Bathtub curve DFR phase: Initial design, constant bug fixes CFR phase: Normal operational phase IFR phase: Aging behavior. h(t). (burn-in-period).

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قابليت اطمينان Reliability

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  1. قابليت اطمينانReliability

  2. قابليت اطمينان:احتمال سالم بودن دستگاه در لحظه t

  3. نرخ خرابي نسبي: درصد دستگاه خراب شده در واحد زمان

  4. Bathtub curve DFR phase: Initial design, constant bug fixes CFR phase: Normal operational phase IFR phase: Aging behavior h(t) (burn-in-period) (wear-out-phase) CFR (useful life) DFR IFR t Increasing fail. rate Decreasing failure rate

  5. سيستمهاي سري و موازي

  6. سيستمهاي سري:

  7. سيستمهاي موازي:

  8. طراحي ديگر:

  9. قابليت دسترسي:احتمال سالم بودن دستگاه در لحظه t دستگاه قابل تعمير است. (A(t) ) متوسط زمان تعمير:

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