It is noteworthy that the most widespread FOAT models are aimed at the prediction of the MTTF
only and directly.
For FETs, most applications require MTTF
of [10.sup.6] hours at 150 [degrees] C channel temperature, except for space applications that require MTTF
of [10.sup.7] hours at 125 [degrees] C maximum channel temperature.
For a reliability evaluation of this 2oo2DFS system, the functions R and MTTF
have to be calculated.
Likelihood obtained by dividing Operating time for 5 years in hours and Mean Time to Failure (MTTF
) in an hour anyway.
Con los tiempos generados en cada sistema se calcularon los MTTF
, MTTR y MTBF (Tabla VIII, Tabla IX y Tabla X), con estos y mediante la aplicacion de las formulas establecidas anteriormente las aproximaciones a las tasas de falla y restauracion del sistema entero.
For each papermaking machine, 3 predictor variables associated with production parameters, shown in Table 2 (daily production in tons of paper per day, average paper weight in grams per square meter, and average speed in meters per second), are selected, with the objective of obtaining a target of two simultaneous predictive responses (OEE in the percentage of machine utilization and MTTF
Reliability is quantified as MTBF for repairable systems and mean time to failure (MTTF
) for nonrepairable systems.
One of the input parameters for obtaining the modules outages is the Mean Time To Failure (MTTF
), which is MTTF
The software reliability MTTF
is also compared (Table 7).
RCFA-2 are often complemented by ART-functional stresses; preliminary physical simulations and data mining, statistical and reliability analyses (histograms, MTTF
, FTA, FMECA, etc) .
The bonds are special obligations payable from state taxes deposited in the pledged amounts account including dedicated mass transportation trust fund (MTTF
) receipts and metropolitan mass transportation operating assistance account (MMTOA) receipts.
The above analyzes the existing computer interlocking system architecture and carries on the simulation analysis and comparison of the system reliability, safety and MTTF
(mean time to failure) and other parameters.