Estimation failure rate and reliability of triple modular redundancy system

What is it about?

In engineering, redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability and decreasing the failure rate of the system, usually in the case of fail-safe. In this study, a mathematical model was created to find the optimum values of the distribution parameters of the triple modular redundant system. Therefore, the system will be higher safety, longer lifetime and higher reliability with smaller failure rate. The maximum likelihood estimation and order statistics were applied to estimate the optimum values of the failure rate, reliability and lifetime for the triple modular redundancy (TMR) system, which contains three electronic redundancy units with Weibull distribution. The numerical values of the failure rate, reliability and lifetime of the triple modular redundant system were obtained using Weibull distribution. Thus, the designing of TMR system can be longer lifetime, and higher safety. Moreover, the risks of sudden failure and economic losses will be decreased.

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Why is it important?

The triple modular redundant system is considered one of the most important systems in the field of industries of aircraft, computers and electronic devices which it affects on human life and economic. This study will enable the engineers and factories to get the best designing of the electronic systems with more safety and efficiency. Therefore, the risks of sudden failure and economic losses will be reduced.