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- Failure_rate abstract "Failure rate is the frequency with which an engineered system or component fails, expressed in failures per unit of time. It is often denoted by the Greek letter λ (lambda) and is highly used in reliability engineering.The failure rate of a system usually depends on time, with the rate varying over the life cycle of the system. For example, an automobile's failure rate in its fifth year of service may be many times greater than its failure rate during its first year of service. One does not expect to replace an exhaust pipe, overhaul the brakes, or have major transmission problems in a new vehicle.In practice, the mean time between failures (MTBF, 1/λ) is often reported instead of the failure rate. This is valid and useful if the failure rate may be assumed constant – often used for complex units / systems, electronics – and is a general agreement in some reliability standards (Military and Aerospace). It does in this case only relate to the flat region of the bathtub curve, also called the "useful life period". Because of this, it is incorrect to extrapolate MTBF to give an estimate of the service life time of a component, which will typically be much less than suggested by the MTBF due to the much higher failure rates in the "end-of-life wearout" part of the "bathtub curve".The reason for the preferred use for MTBF numbers is that the use of large positive numbers (such as 2000 hours) is more intuitive and easier to remember than very small numbers (such as 0.0005 per hour).The MTBF is an important system parameter in systems where failure rate needs to be managed, in particular for safety systems. The MTBF appears frequently in the engineering design requirements, and governs frequency of required system maintenance and inspections. In special processes called renewal processes, where the time to recover from failure can be neglected and the likelihood of failure remains constant with respect to time, the failure rate is simply the multiplicative inverse of the MTBF (1/λ).A similar ratio used in the transport industries, especially in railways and trucking is "mean distance between failures", a variation which attempts to correlate actual loaded distances to similar reliability needs and practices.Failure rates are important factors in the insurance, finance, commerce and regulatory industries and fundamental to the design of safe systems in a wide variety of applications.".
- Failure_rate thumbnail Loglogistichaz.svg?width=300.
- Failure_rate wikiPageExternalLink mondro_approx.pdf.
- Failure_rate wikiPageExternalLink Fault_Tolerance_Tutorial_HK.pdf.
- Failure_rate wikiPageExternalLink bathtub.html.
- Failure_rate wikiPageID "1336960".
- Failure_rate wikiPageLength "19772".
- Failure_rate wikiPageOutDegree "71".
- Failure_rate wikiPageRevisionID "678913637".
- Failure_rate wikiPageWikiLink 1,000,000,000.
- Failure_rate wikiPageWikiLink 1000000000_(number).
- Failure_rate wikiPageWikiLink Annualized_failure_rate.
- Failure_rate wikiPageWikiLink Bathtub_curve.
- Failure_rate wikiPageWikiLink Burn-in.
- Failure_rate wikiPageWikiLink Burn_in.
- Failure_rate wikiPageWikiLink Category:Actuarial_science.
- Failure_rate wikiPageWikiLink Category:Error_measures.
- Failure_rate wikiPageWikiLink Category:Failure.
- Failure_rate wikiPageWikiLink Category:Maintenance.
- Failure_rate wikiPageWikiLink Category:Rates.
- Failure_rate wikiPageWikiLink Category:Reliability_engineering.
- Failure_rate wikiPageWikiLink Category:Statistical_ratios.
- Failure_rate wikiPageWikiLink Category:Statistical_terminology.
- Failure_rate wikiPageWikiLink Category:Survival_analysis.
- Failure_rate wikiPageWikiLink Coefficient_of_variation.
- Failure_rate wikiPageWikiLink Colours,_standards_and_guidons.
- Failure_rate wikiPageWikiLink Conditional_probability.
- Failure_rate wikiPageWikiLink Confidence_interval.
- Failure_rate wikiPageWikiLink Correlation.
- Failure_rate wikiPageWikiLink Correlation_and_dependence.
- Failure_rate wikiPageWikiLink Cumulative_distribution_function.
- Failure_rate wikiPageWikiLink Data.
- Failure_rate wikiPageWikiLink Decreasing_function.
- Failure_rate wikiPageWikiLink ERA_Technology_Ltd.
- Failure_rate wikiPageWikiLink Engineering.
- Failure_rate wikiPageWikiLink Engineering_notation.
- Failure_rate wikiPageWikiLink Exponential_distribution.
- Failure_rate wikiPageWikiLink Failure.
- Failure_rate wikiPageWikiLink Failure_Modes,_Effects,_and_Diagnostic_Analysis.
- Failure_rate wikiPageWikiLink Failure_causes.
- Failure_rate wikiPageWikiLink Failure_mode.
- Failure_rate wikiPageWikiLink Federal_Standard_1037C.
- Failure_rate wikiPageWikiLink Force_of_mortality.
- Failure_rate wikiPageWikiLink Frequency.
- Failure_rate wikiPageWikiLink Greek_alphabet.
- Failure_rate wikiPageWikiLink Hyperexponential_distribution.
- Failure_rate wikiPageWikiLink Lambda.
- Failure_rate wikiPageWikiLink List_of_probability_distributions.
- Failure_rate wikiPageWikiLink Log-normal_distribution.
- Failure_rate wikiPageWikiLink Mean_time_between_failures.
- Failure_rate wikiPageWikiLink Memorylessness.
- Failure_rate wikiPageWikiLink Military_standard.
- Failure_rate wikiPageWikiLink Monotonic.
- Failure_rate wikiPageWikiLink Monotonic_function.
- Failure_rate wikiPageWikiLink Nelson–Aalen_estimator.
- Failure_rate wikiPageWikiLink Pareto_distribution.
- Failure_rate wikiPageWikiLink Probability.
- Failure_rate wikiPageWikiLink Probability_density_function.
- Failure_rate wikiPageWikiLink Rail_transport.
- Failure_rate wikiPageWikiLink Railway.
- Failure_rate wikiPageWikiLink Redundancy_(engineering).
- Failure_rate wikiPageWikiLink Reliability_engineering.
- Failure_rate wikiPageWikiLink Reliability_function.
- Failure_rate wikiPageWikiLink Reliability_theory.
- Failure_rate wikiPageWikiLink Reliability_theory_of_aging_and_longevity.
- Failure_rate wikiPageWikiLink Renewal_process.
- Failure_rate wikiPageWikiLink Renewal_theory.
- Failure_rate wikiPageWikiLink Semiconductor.
- Failure_rate wikiPageWikiLink Single_point_of_failure.
- Failure_rate wikiPageWikiLink Statistical_population.
- Failure_rate wikiPageWikiLink Subsystem.
- Failure_rate wikiPageWikiLink Survival_analysis.
- Failure_rate wikiPageWikiLink Survival_function.
- Failure_rate wikiPageWikiLink System.
- Failure_rate wikiPageWikiLink Systems_engineering.
- Failure_rate wikiPageWikiLink Transmission_(mechanics).
- Failure_rate wikiPageWikiLink Transport.
- Failure_rate wikiPageWikiLink Transport_industry.
- Failure_rate wikiPageWikiLink Truck_driver.
- Failure_rate wikiPageWikiLink Wear_and_tear.
- Failure_rate wikiPageWikiLink Weibull_distribution.
- Failure_rate wikiPageWikiLink Λ.
- Failure_rate wikiPageWikiLink File:Exponential_pdf.svg.
- Failure_rate wikiPageWikiLink File:Loglogistichaz.svg.
- Failure_rate wikiPageWikiLinkText "FIT".
- Failure_rate wikiPageWikiLinkText "Failure rate".
- Failure_rate wikiPageWikiLinkText "Failure rate#Decreasing failure rate".
- Failure_rate wikiPageWikiLinkText "Failure rate#hazard function".
- Failure_rate wikiPageWikiLinkText "Failures In Time".
- Failure_rate wikiPageWikiLinkText "Hazard rate".
- Failure_rate wikiPageWikiLinkText "MTBF".
- Failure_rate wikiPageWikiLinkText "Mean Time Before Failure".
- Failure_rate wikiPageWikiLinkText "component failure rate".
- Failure_rate wikiPageWikiLinkText "failure rate".
- Failure_rate wikiPageWikiLinkText "hazard functions".
- Failure_rate wikiPageWikiLinkText "mean distance between failures".
- Failure_rate wikiPageWikiLinkText "rate".
- Failure_rate hasPhotoCollection Failure_rate.
- Failure_rate wikiPageUsesTemplate Template:Citation_needed.
- Failure_rate wikiPageUsesTemplate Template:Cite_book.