Results 251 to 260 of about 88,764,951 (299)
Some of the next articles are maybe not open access.
Simple Test of Hypotheses on System Availability and Mean Time to Repair
IEEE Transactions on Reliability, 1986A method is developed for testing hypotheses on system availability and mean time to repair, under the assumption that the failure times and repair times are, respectively, independent exponential and gamma random variables. System is assumed to be in a steady state; availability is defined in usual manner as the ratio of mean time to failure to the ...
exaly +2 more sources
Derivation of an Exact Expression for Mean Time to Repair
IEEE Transactions on Reliability, 1986The mean time to repair for a failed component is a necessary number for availability calculations. For a device with a constant failure intensity, one half of the time between tests is often taken to be the mean time to repair. This is an approximation. This paper derives an exact expression for mean time to repair and discusses its limiting behavior.
exaly +3 more sources
Mean Time to Achieve a Failure-Free Requirement with Imperfect Repair
IEEE Transactions on Reliability, 1985Summary: This paper obtains expressions for the mean test time to achieve a failure-free requirement with imperfect repair, under two plans. First do complete repair (good as new) at an even number of failures and partial repair (bad as old) otherwise. Next do complete repair at every k-th failure and partial repair otherwise.
exaly +2 more sources
A Censored Sequential Posterior Odd Test (SPOT) Method for Verification of the Mean Time To Repair
IEEE Transactions on Reliability, 2008The verification of the Mean Time To Repair (MTTR) is a problem of interest in many practical cases. As maintenance time can often be adequately described by a lognormal distribution, the problem leads us to research on statistical inference on the mean of the lognormal distribution. To achieve this purpose, we propose the Sequential Posterior Odd Test
Ping Jiang
exaly +3 more sources
On the Mean Time between Failures for Repairable Systems
IEEE Transactions on Reliability, 1986Much of the recent work on modelling repairable systems involves Poisson processes with nonconstant intensity functions, viz, nonhomogeneous Poisson processes. Since times between failures are not identically distributed when the process is nonhomogeneous, it is not clear what concept should take the place of the mean time between failures in assessing
Engelhardt, Max, Bain, Lee J.
openaire +2 more sources
A model for mean-time-to-repair and mean-logistics-delay-time at the system level
Annual Proceedings on Reliability and Maintainability Symposium, 2002A method is presented for calculating the operational availability, mean time between failures (MTBF), mean time to repair (MTTR), and mean logistic delay time (MLDT) of a system, given the MTBF, MTTR, and MLDT of the lowest replaceable units (LRUs). The method is applicable to systems that undergo operating and nonoperating periods for an indefinite ...
T.E. Wing, L.H. Crow
openaire +1 more source
A System's Mean Time To Repair Allocation Method Based on the Time Factors
Quality and Reliability Engineering International, 2013The aim of the maintenance allocation is to allocate the maintenance time to the subsystems reasonably and accurately. Traditional mean time to repair (MTTR) allocation methods are widely used in the industry. However, there are many deficiencies in practical application, which is inconsistent with the purpose of the maintenance allocation. To allocate
Dong Zhou +3 more
openaire +1 more source
Maximizing mean-time to failure in k-resilient systems with repair
IEEE Transactions on Computers, 1997A k-resilient system with N components can tolerate up to k component failures and still function correctly. We consider k-resilient systems where the number of component failures is a constant fraction of the total number of components, that is k=N/c and c is a constant such that 2/spl les ...
José Fridman, Sampath Rangarajan
openaire +1 more source