A Method for the Calculation of the Mean Time To Failure (MTTF) of Repairable System
The ability of executing assigned function of repairable system under certain condition is quite different from that of single unit due to redundant configuration. It is well understood that proper management strategy can greatly prolong the mean time to failure (MTTF) of repairable system. By introducing operating cycle or partial test interval, repair time and maintenance efficiency, the MTTF of classic 1oo1, 1oo2 and 2oo3 redundant systems is studied in this paper. It is found that periodical maintenance can dramatically improve the availability of repairable system, while the efficiency of maintenance has great influence on the MTTF of repairable system.
Z.Y. Shen, M.N. James, W.D. Li, and Y.X. Zhao
J. X. Zhu et al., "A Method for the Calculation of the Mean Time To Failure (MTTF) of Repairable System", Advanced Materials Research, Vols. 44-46, pp. 813-820, 2008